Linux kernel implementation of PIOS test app.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
-SUBDIRS = zfs zpool zpool_id zpool_layout zdb zinject ztest
+SUBDIRS = zfs zpool zpool_id zpool_layout zdb zinject ztest zpios
--- /dev/null
+include $(top_srcdir)/config/Rules.am
+
+DEFAULT_INCLUDES += \
+ -I${top_srcdir}/module/zpios/include
+
+sbin_PROGRAMS = zpios
+
+zpios_SOURCES = \
+ $(top_srcdir)/cmd/zpios/zpios_main.c \
+ $(top_srcdir)/cmd/zpios/zpios_util.c \
+ $(top_srcdir)/cmd/zpios/zpios.h
+
--- /dev/null
+/*****************************************************************************\
+ * ZPIOS is a heavily modified version of the original PIOS test code.
+ * It is designed to have the test code running in the Linux kernel
+ * against ZFS while still being flexibly controled from user space.
+ *
+ * Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC.
+ * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
+ * LLNL-CODE-403049
+ *
+ * Original PIOS Test Code
+ * Copyright (C) 2004 Cluster File Systems, Inc.
+ * Written by Peter Braam <braam@clusterfs.com>
+ * Atul Vidwansa <atul@clusterfs.com>
+ * Milind Dumbare <milind@clusterfs.com>
+ *
+ * This file is part of ZFS on Linux.
+ * For details, see <http://github.com/behlendorf/zfs/>.
+ *
+ * ZPIOS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * ZPIOS is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with ZPIOS. If not, see <http://www.gnu.org/licenses/>.
+\*****************************************************************************/
+
+#ifndef _ZPIOS_H
+#define _ZPIOS_H
+
+#include <zpios-ctl.h>
+
+#define VERSION_SIZE 64
+
+/* Regular expressions */
+#define REGEX_NUMBERS "^[0-9]*[0-9]$"
+#define REGEX_NUMBERS_COMMA "^([0-9]+,)*[0-9]+$"
+#define REGEX_SIZE "^[0-9][0-9]*[kmgt]$"
+#define REGEX_SIZE_COMMA "^([0-9][0-9]*[kmgt]+,)*[0-9][0-9]*[kmgt]$"
+
+/* Flags for low, high, incr */
+#define FLAG_SET 0x01
+#define FLAG_LOW 0x02
+#define FLAG_HIGH 0x04
+#define FLAG_INCR 0x08
+
+#define TRUE 1
+#define FALSE 0
+
+#define KB (1024)
+#define MB (KB * 1024)
+#define GB (MB * 1024)
+#define TB (GB * 1024)
+
+#define KMGT_SIZE 16
+
+/* All offsets, sizes and counts can be passed to the application in
+ * multiple ways.
+ * 1. a value (stored in val[0], val_count will be 1)
+ * 2. a comma separated list of values (stored in val[], using val_count)
+ * 3. a range and block sizes, low, high, factor (val_count must be 0)
+ */
+typedef struct pios_range_repeat {
+ uint64_t val[32]; /* Comma sep array, or low, high, inc */
+ uint64_t val_count; /* Num of values */
+ uint64_t val_low;
+ uint64_t val_high;
+ uint64_t val_inc_perc;
+ uint64_t next_val; /* Used for multiple runs in get_next() */
+} range_repeat_t;
+
+typedef struct cmd_args {
+ range_repeat_t T; /* Thread count */
+ range_repeat_t N; /* Region count */
+ range_repeat_t O; /* Offset count */
+ range_repeat_t C; /* Chunksize */
+ range_repeat_t S; /* Regionsize */
+
+ const char *pool; /* Pool */
+ const char *name; /* Name */
+ uint32_t flags; /* Flags */
+ uint32_t io_type; /* DMUIO only */
+ uint32_t verbose; /* Verbose */
+ uint32_t human_readable; /* Human readable output */
+
+ uint64_t regionnoise; /* Region noise */
+ uint64_t chunknoise; /* Chunk noise */
+ uint64_t thread_delay; /* Thread delay */
+
+ char pre[ZPIOS_PATH_SIZE]; /* Pre-exec hook */
+ char post[ZPIOS_PATH_SIZE]; /* Post-exec hook */
+ char log[ZPIOS_PATH_SIZE]; /* Requested log dir */
+
+ /* Control */
+ int current_id;
+ uint64_t current_T;
+ uint64_t current_N;
+ uint64_t current_C;
+ uint64_t current_S;
+ uint64_t current_O;
+
+ uint32_t rc;
+} cmd_args_t;
+
+int set_count(char *pattern1, char *pattern2, range_repeat_t *range,
+ char *optarg, uint32_t *flags, char *arg);
+int set_lhi(char *pattern, range_repeat_t *range, char *optarg,
+ int flag, uint32_t *flag_thread, char *arg);
+int set_noise(uint64_t *noise, char *optarg, char *arg);
+int set_load_params(cmd_args_t *args, char *optarg);
+int check_mutual_exclusive_command_lines(uint32_t flag, char *arg);
+void print_stats_header(cmd_args_t *args);
+void print_stats(cmd_args_t *args, zpios_cmd_t *cmd);
+
+#endif /* _ZPIOS_H */
--- /dev/null
+/*****************************************************************************\
+ * ZPIOS is a heavily modified version of the original PIOS test code.
+ * It is designed to have the test code running in the Linux kernel
+ * against ZFS while still being flexibly controled from user space.
+ *
+ * Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC.
+ * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
+ * LLNL-CODE-403049
+ *
+ * Original PIOS Test Code
+ * Copyright (C) 2004 Cluster File Systems, Inc.
+ * Written by Peter Braam <braam@clusterfs.com>
+ * Atul Vidwansa <atul@clusterfs.com>
+ * Milind Dumbare <milind@clusterfs.com>
+ *
+ * This file is part of ZFS on Linux.
+ * For details, see <http://github.com/behlendorf/zfs/>.
+ *
+ * ZPIOS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * ZPIOS is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with ZPIOS. If not, see <http://www.gnu.org/licenses/>.
+\*****************************************************************************/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <getopt.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/ioctl.h>
+#include "zpios.h"
+
+static const char short_opt[] = "t:l:h:e:n:i:j:k:o:m:q:r:c:a:b:g:s:A:B:C:"
+ "L:p:M:xP:R:G:I:N:T:VzOfHv?";
+static const struct option long_opt[] = {
+ {"threadcount", required_argument, 0, 't' },
+ {"threadcount_low", required_argument, 0, 'l' },
+ {"threadcount_high", required_argument, 0, 'h' },
+ {"threadcount_incr", required_argument, 0, 'e' },
+ {"regioncount", required_argument, 0, 'n' },
+ {"regioncount_low", required_argument, 0, 'i' },
+ {"regioncount_high", required_argument, 0, 'j' },
+ {"regioncount_incr", required_argument, 0, 'k' },
+ {"offset", required_argument, 0, 'o' },
+ {"offset_low", required_argument, 0, 'm' },
+ {"offset_high", required_argument, 0, 'q' },
+ {"offset_incr", required_argument, 0, 'r' },
+ {"chunksize", required_argument, 0, 'c' },
+ {"chunksize_low", required_argument, 0, 'a' },
+ {"chunksize_high", required_argument, 0, 'b' },
+ {"chunksize_incr", required_argument, 0, 'g' },
+ {"regionsize", required_argument, 0, 's' },
+ {"regionsize_low", required_argument, 0, 'A' },
+ {"regionsize_high", required_argument, 0, 'B' },
+ {"regionsize_incr", required_argument, 0, 'C' },
+ {"load", required_argument, 0, 'L' },
+ {"pool", required_argument, 0, 'p' },
+ {"name", required_argument, 0, 'M' },
+ {"cleanup", no_argument, 0, 'x' },
+ {"prerun", required_argument, 0, 'P' },
+ {"postrun", required_argument, 0, 'R' },
+ {"log", required_argument, 0, 'G' },
+ {"regionnoise", required_argument, 0, 'I' },
+ {"chunknoise", required_argument, 0, 'N' },
+ {"threaddelay", required_argument, 0, 'T' },
+ {"verify", no_argument, 0, 'V' },
+ {"zerocopy", no_argument, 0, 'z' },
+ {"nowait", no_argument, 0, 'O' },
+ {"noprefetch", no_argument, 0, 'f' },
+ {"human-readable", no_argument, 0, 'H' },
+ {"verbose", no_argument, 0, 'v' },
+ {"help", no_argument, 0, '?' },
+ { 0, 0, 0, 0 },
+};
+
+static int zpiosctl_fd; /* Control file descriptor */
+static char zpios_version[VERSION_SIZE]; /* Kernel version string */
+static char *zpios_buffer = NULL; /* Scratch space area */
+static int zpios_buffer_size = 0; /* Scratch space size */
+
+static int
+usage(void)
+{
+ fprintf(stderr, "Usage: zpios\n");
+ fprintf(stderr,
+ " --threadcount -t =values\n"
+ " --threadcount_low -l =value\n"
+ " --threadcount_high -h =value\n"
+ " --threadcount_incr -e =value\n"
+ " --regioncount -n =values\n"
+ " --regioncount_low -i =value\n"
+ " --regioncount_high -j =value\n"
+ " --regioncount_incr -k =value\n"
+ " --offset -o =values\n"
+ " --offset_low -m =value\n"
+ " --offset_high -q =value\n"
+ " --offset_incr -r =value\n"
+ " --chunksize -c =values\n"
+ " --chunksize_low -a =value\n"
+ " --chunksize_high -b =value\n"
+ " --chunksize_incr -g =value\n"
+ " --regionsize -s =values\n"
+ " --regionsize_low -A =value\n"
+ " --regionsize_high -B =value\n"
+ " --regionsize_incr -C =value\n"
+ " --load -L =dmuio|ssf|fpp\n"
+ " --pool -p =pool name\n"
+ " --name -M =test name\n"
+ " --cleanup -x\n"
+ " --prerun -P =pre-command\n"
+ " --postrun -R =post-command\n"
+ " --log -G =log directory\n"
+ " --regionnoise -I =shift\n"
+ " --chunknoise -N =bytes\n"
+ " --threaddelay -T =jiffies\n"
+ " --verify -V\n"
+ " --zerocopy -z\n"
+ " --nowait -O\n"
+ " --noprefetch -f\n"
+ " --human-readable -H\n"
+ " --verbose -v =increase verbosity\n"
+ " --help -? =this help\n\n");
+
+ return 0;
+}
+
+static void args_fini(cmd_args_t *args)
+{
+ assert(args != NULL);
+ free(args);
+}
+
+static cmd_args_t *
+args_init(int argc, char **argv)
+{
+ cmd_args_t *args;
+ uint32_t fl_th = 0;
+ uint32_t fl_rc = 0;
+ uint32_t fl_of = 0;
+ uint32_t fl_rs = 0;
+ uint32_t fl_cs = 0;
+ int c, rc;
+
+ if (argc == 1) {
+ usage();
+ return (cmd_args_t *)NULL;
+ }
+
+ /* Configure and populate the args structures */
+ args = malloc(sizeof(*args));
+ if (args == NULL)
+ return NULL;
+
+ memset(args, 0, sizeof(*args));
+
+ while ((c=getopt_long(argc, argv, short_opt, long_opt, NULL)) != -1) {
+ rc = 0;
+
+ switch (c) {
+ case 't': /* --thread count */
+ rc = set_count(REGEX_NUMBERS, REGEX_NUMBERS_COMMA,
+ &args->T, optarg, &fl_th, "threadcount");
+ break;
+ case 'l': /* --threadcount_low */
+ rc = set_lhi(REGEX_NUMBERS, &args->T, optarg,
+ FLAG_LOW, &fl_th, "threadcount_low");
+ break;
+ case 'h': /* --threadcount_high */
+ rc = set_lhi(REGEX_NUMBERS, &args->T, optarg,
+ FLAG_HIGH, &fl_th, "threadcount_high");
+ break;
+ case 'e': /* --threadcount_inc */
+ rc = set_lhi(REGEX_NUMBERS, &args->T, optarg,
+ FLAG_INCR, &fl_th, "threadcount_incr");
+ break;
+ case 'n': /* --regioncount */
+ rc = set_count(REGEX_NUMBERS, REGEX_NUMBERS_COMMA,
+ &args->N, optarg, &fl_rc, "regioncount");
+ break;
+ case 'i': /* --regioncount_low */
+ rc = set_lhi(REGEX_NUMBERS, &args->N, optarg,
+ FLAG_LOW, &fl_rc, "regioncount_low");
+ break;
+ case 'j': /* --regioncount_high */
+ rc = set_lhi(REGEX_NUMBERS, &args->N, optarg,
+ FLAG_HIGH, &fl_rc, "regioncount_high");
+ break;
+ case 'k': /* --regioncount_inc */
+ rc = set_lhi(REGEX_NUMBERS, &args->N, optarg,
+ FLAG_INCR, &fl_rc, "regioncount_incr");
+ break;
+ case 'o': /* --offset */
+ rc = set_count(REGEX_SIZE, REGEX_SIZE_COMMA,
+ &args->O, optarg, &fl_of, "offset");
+ break;
+ case 'm': /* --offset_low */
+ rc = set_lhi(REGEX_SIZE, &args->O, optarg,
+ FLAG_LOW, &fl_of, "offset_low");
+ break;
+ case 'q': /* --offset_high */
+ rc = set_lhi(REGEX_SIZE, &args->O, optarg,
+ FLAG_HIGH, &fl_of, "offset_high");
+ break;
+ case 'r': /* --offset_inc */
+ rc = set_lhi(REGEX_NUMBERS, &args->O, optarg,
+ FLAG_INCR, &fl_of, "offset_incr");
+ break;
+ case 'c': /* --chunksize */
+ rc = set_count(REGEX_SIZE, REGEX_SIZE_COMMA,
+ &args->C, optarg, &fl_cs, "chunksize");
+ break;
+ case 'a': /* --chunksize_low */
+ rc = set_lhi(REGEX_SIZE, &args->C, optarg,
+ FLAG_LOW, &fl_cs, "chunksize_low");
+ break;
+ case 'b': /* --chunksize_high */
+ rc = set_lhi(REGEX_SIZE, &args->C, optarg,
+ FLAG_HIGH, &fl_cs, "chunksize_high");
+ break;
+ case 'g': /* --chunksize_inc */
+ rc = set_lhi(REGEX_NUMBERS, &args->C, optarg,
+ FLAG_INCR, &fl_cs, "chunksize_incr");
+ break;
+ case 's': /* --regionsize */
+ rc = set_count(REGEX_SIZE, REGEX_SIZE_COMMA,
+ &args->S, optarg, &fl_rs, "regionsize");
+ break;
+ case 'A': /* --regionsize_low */
+ rc = set_lhi(REGEX_SIZE, &args->S, optarg,
+ FLAG_LOW, &fl_rs, "regionsize_low");
+ break;
+ case 'B': /* --regionsize_high */
+ rc = set_lhi(REGEX_SIZE, &args->S, optarg,
+ FLAG_HIGH, &fl_rs, "regionsize_high");
+ break;
+ case 'C': /* --regionsize_inc */
+ rc = set_lhi(REGEX_NUMBERS, &args->S, optarg,
+ FLAG_INCR, &fl_rs, "regionsize_incr");
+ break;
+ case 'L': /* --load */
+ rc = set_load_params(args, optarg);
+ break;
+ case 'p': /* --pool */
+ args->pool = optarg;
+ break;
+ case 'M':
+ args->name = optarg;
+ break;
+ case 'x': /* --cleanup */
+ args->flags |= DMU_REMOVE;
+ break;
+ case 'P': /* --prerun */
+ strncpy(args->pre, optarg, ZPIOS_PATH_SIZE - 1);
+ break;
+ case 'R': /* --postrun */
+ strncpy(args->post, optarg, ZPIOS_PATH_SIZE - 1);
+ break;
+ case 'G': /* --log */
+ strncpy(args->log, optarg, ZPIOS_PATH_SIZE - 1);
+ break;
+ case 'I': /* --regionnoise */
+ rc = set_noise(&args->regionnoise, optarg, "regionnoise");
+ break;
+ case 'N': /* --chunknoise */
+ rc = set_noise(&args->chunknoise, optarg, "chunknoise");
+ break;
+ case 'T': /* --threaddelay */
+ rc = set_noise(&args->thread_delay, optarg, "threaddelay");
+ break;
+ case 'V': /* --verify */
+ args->flags |= DMU_VERIFY;
+ break;
+ case 'z': /* --zerocopy */
+ args->flags |= (DMU_WRITE_ZC | DMU_READ_ZC);
+ break;
+ case 'O': /* --nowait */
+ args->flags |= DMU_WRITE_NOWAIT;
+ break;
+ case 'f': /* --noprefetch */
+ args->flags |= DMU_READ_NOPF;
+ break;
+ case 'H': /* --human-readable */
+ args->human_readable = 1;
+ break;
+ case 'v': /* --verbose */
+ args->verbose++;
+ break;
+ case '?':
+ rc = 1;
+ break;
+ default:
+ fprintf(stderr,"Unknown option '%s'\n",argv[optind-1]);
+ rc = EINVAL;
+ break;
+ }
+
+ if (rc) {
+ usage();
+ args_fini(args);
+ return NULL;
+ }
+ }
+
+ check_mutual_exclusive_command_lines(fl_th, "threadcount");
+ check_mutual_exclusive_command_lines(fl_rc, "regioncount");
+ check_mutual_exclusive_command_lines(fl_of, "offset");
+ check_mutual_exclusive_command_lines(fl_rs, "regionsize");
+ check_mutual_exclusive_command_lines(fl_cs, "chunksize");
+
+ if (args->pool == NULL) {
+ fprintf(stderr, "Error: Pool not specificed\n");
+ usage();
+ args_fini(args);
+ return NULL;
+ }
+
+ if ((args->flags & (DMU_WRITE_ZC | DMU_READ_ZC)) &&
+ (args->flags & DMU_VERIFY)) {
+ fprintf(stderr, "Error, --zerocopy incompatible --verify, "
+ "used for performance analysis only\n");
+ usage();
+ args_fini(args);
+ return NULL;
+ }
+
+ return args;
+}
+
+static int
+dev_clear(void)
+{
+ zpios_cfg_t cfg;
+ int rc;
+
+ memset(&cfg, 0, sizeof(cfg));
+ cfg.cfg_magic = ZPIOS_CFG_MAGIC;
+ cfg.cfg_cmd = ZPIOS_CFG_BUFFER_CLEAR;
+ cfg.cfg_arg1 = 0;
+
+ rc = ioctl(zpiosctl_fd, ZPIOS_CFG, &cfg);
+ if (rc)
+ fprintf(stderr, "Ioctl() error %lu / %d: %d\n",
+ (unsigned long) ZPIOS_CFG, cfg.cfg_cmd, errno);
+
+ lseek(zpiosctl_fd, 0, SEEK_SET);
+
+ return rc;
+}
+
+/* Passing a size of zero simply results in querying the current size */
+static int
+dev_size(int size)
+{
+ zpios_cfg_t cfg;
+ int rc;
+
+ memset(&cfg, 0, sizeof(cfg));
+ cfg.cfg_magic = ZPIOS_CFG_MAGIC;
+ cfg.cfg_cmd = ZPIOS_CFG_BUFFER_SIZE;
+ cfg.cfg_arg1 = size;
+
+ rc = ioctl(zpiosctl_fd, ZPIOS_CFG, &cfg);
+ if (rc) {
+ fprintf(stderr, "Ioctl() error %lu / %d: %d\n",
+ (unsigned long) ZPIOS_CFG, cfg.cfg_cmd, errno);
+ return rc;
+ }
+
+ return cfg.cfg_rc1;
+}
+
+static void
+dev_fini(void)
+{
+ if (zpios_buffer)
+ free(zpios_buffer);
+
+ if (zpiosctl_fd != -1) {
+ if (close(zpiosctl_fd) == -1) {
+ fprintf(stderr, "Unable to close %s: %d\n",
+ ZPIOS_DEV, errno);
+ }
+ }
+}
+
+static int
+dev_init(void)
+{
+ int rc;
+
+ zpiosctl_fd = open(ZPIOS_DEV, O_RDONLY);
+ if (zpiosctl_fd == -1) {
+ fprintf(stderr, "Unable to open %s: %d\n"
+ "Is the zpios module loaded?\n", ZPIOS_DEV, errno);
+ rc = errno;
+ goto error;
+ }
+
+ if ((rc = dev_clear()))
+ goto error;
+
+ if ((rc = dev_size(0)) < 0)
+ goto error;
+
+ zpios_buffer_size = rc;
+ zpios_buffer = (char *)malloc(zpios_buffer_size);
+ if (zpios_buffer == NULL) {
+ rc = ENOMEM;
+ goto error;
+ }
+
+ memset(zpios_buffer, 0, zpios_buffer_size);
+ return 0;
+error:
+ if (zpiosctl_fd != -1) {
+ if (close(zpiosctl_fd) == -1) {
+ fprintf(stderr, "Unable to close %s: %d\n",
+ ZPIOS_DEV, errno);
+ }
+ }
+
+ return rc;
+}
+
+static int
+get_next(uint64_t *val, range_repeat_t *range)
+{
+ /* if low, incr, high is given */
+ if (range->val_count == 0) {
+ *val = (range->val_low) +
+ (range->val_low * range->next_val / 100);
+
+ if (*val > range->val_high)
+ return 0; /* No more values, limit exceeded */
+
+ if (!range->next_val)
+ range->next_val = range->val_inc_perc;
+ else
+ range->next_val = range->next_val+range->val_inc_perc;
+
+ return 1; /* more values to come */
+
+ /* if only one val is given */
+ } else if (range->val_count == 1) {
+ if (range->next_val)
+ return 0; /* No more values, we only have one */
+
+ *val = range->val[0];
+ range->next_val = 1;
+ return 1; /* more values to come */
+
+ /* if comma separated values are given */
+ } else if (range->val_count > 1) {
+ if (range->next_val > range->val_count - 1)
+ return 0; /* No more values, limit exceeded */
+
+ *val = range->val[range->next_val];
+ range->next_val++;
+ return 1; /* more values to come */
+ }
+
+ return 0;
+}
+
+static int
+run_one(cmd_args_t *args, uint32_t id, uint32_t T, uint32_t N,
+ uint64_t C, uint64_t S, uint64_t O)
+{
+ zpios_cmd_t *cmd;
+ int rc, rc2, cmd_size;
+
+ dev_clear();
+
+ cmd_size = sizeof(zpios_cmd_t) + ((T + N + 1) * sizeof(zpios_stats_t));
+ cmd = (zpios_cmd_t *)malloc(cmd_size);
+ if (cmd == NULL)
+ return ENOMEM;
+
+ memset(cmd, 0, cmd_size);
+ cmd->cmd_magic = ZPIOS_CMD_MAGIC;
+ strncpy(cmd->cmd_pool, args->pool, ZPIOS_NAME_SIZE - 1);
+ strncpy(cmd->cmd_pre, args->pre, ZPIOS_PATH_SIZE - 1);
+ strncpy(cmd->cmd_post, args->post, ZPIOS_PATH_SIZE - 1);
+ strncpy(cmd->cmd_log, args->log, ZPIOS_PATH_SIZE - 1);
+ cmd->cmd_id = id;
+ cmd->cmd_chunk_size = C;
+ cmd->cmd_thread_count = T;
+ cmd->cmd_region_count = N;
+ cmd->cmd_region_size = S;
+ cmd->cmd_offset = O;
+ cmd->cmd_region_noise = args->regionnoise;
+ cmd->cmd_chunk_noise = args->chunknoise;
+ cmd->cmd_thread_delay = args->thread_delay;
+ cmd->cmd_flags = args->flags;
+ cmd->cmd_data_size = (T + N + 1) * sizeof(zpios_stats_t);
+
+ rc = ioctl(zpiosctl_fd, ZPIOS_CMD, cmd);
+ if (rc)
+ args->rc = errno;
+
+ print_stats(args, cmd);
+
+ if (args->verbose) {
+ rc2 = read(zpiosctl_fd, zpios_buffer, zpios_buffer_size - 1);
+ if (rc2 < 0) {
+ fprintf(stdout, "Error reading results: %d\n", rc2);
+ } else if ((rc2 > 0) && (strlen(zpios_buffer) > 0)) {
+ fprintf(stdout, "\n%s\n", zpios_buffer);
+ fflush(stdout);
+ }
+ }
+
+ free(cmd);
+
+ return rc;
+}
+
+static int
+run_offsets(cmd_args_t *args)
+{
+ int rc = 0;
+
+ while (rc == 0 && get_next(&args->current_O, &args->O)) {
+ rc = run_one(args, args->current_id,
+ args->current_T, args->current_N, args->current_C,
+ args->current_S, args->current_O);
+ args->current_id++;
+ }
+
+ args->O.next_val = 0;
+ return rc;
+}
+
+static int
+run_region_counts(cmd_args_t *args)
+{
+ int rc = 0;
+
+ while (rc == 0 && get_next((uint64_t *)&args->current_N, &args->N))
+ rc = run_offsets(args);
+
+ args->N.next_val = 0;
+ return rc;
+}
+
+static int
+run_region_sizes(cmd_args_t *args)
+{
+ int rc = 0;
+
+ while (rc == 0 && get_next(&args->current_S, &args->S)) {
+ if (args->current_S < args->current_C) {
+ fprintf(stderr, "Error: in any run chunksize can "
+ "not be smaller than regionsize.\n");
+ return EINVAL;
+ }
+
+ rc = run_region_counts(args);
+ }
+
+ args->S.next_val = 0;
+ return rc;
+}
+
+static int
+run_chunk_sizes(cmd_args_t *args)
+{
+ int rc = 0;
+
+ while (rc == 0 && get_next(&args->current_C, &args->C)) {
+ rc = run_region_sizes(args);
+ }
+
+ args->C.next_val = 0;
+ return rc;
+}
+
+static int
+run_thread_counts(cmd_args_t *args)
+{
+ int rc = 0;
+
+ while (rc == 0 && get_next((uint64_t *)&args->current_T, &args->T))
+ rc = run_chunk_sizes(args);
+
+ return rc;
+}
+
+int
+main(int argc, char **argv)
+{
+ cmd_args_t *args;
+ int rc = 0;
+
+ /* Argument init and parsing */
+ if ((args = args_init(argc, argv)) == NULL) {
+ rc = -1;
+ goto out;
+ }
+
+ /* Device specific init */
+ if ((rc = dev_init()))
+ goto out;
+
+ /* Generic kernel version string */
+ if (args->verbose)
+ fprintf(stdout, "%s", zpios_version);
+
+ print_stats_header(args);
+ rc = run_thread_counts(args);
+out:
+ if (args != NULL)
+ args_fini(args);
+
+ dev_fini();
+ return rc;
+}
--- /dev/null
+/*****************************************************************************\
+ * ZPIOS is a heavily modified version of the original PIOS test code.
+ * It is designed to have the test code running in the Linux kernel
+ * against ZFS while still being flexibly controled from user space.
+ *
+ * Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC.
+ * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
+ * LLNL-CODE-403049
+ *
+ * Original PIOS Test Code
+ * Copyright (C) 2004 Cluster File Systems, Inc.
+ * Written by Peter Braam <braam@clusterfs.com>
+ * Atul Vidwansa <atul@clusterfs.com>
+ * Milind Dumbare <milind@clusterfs.com>
+ *
+ * This file is part of ZFS on Linux.
+ * For details, see <http://github.com/behlendorf/zfs/>.
+ *
+ * ZPIOS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * ZPIOS is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with ZPIOS. If not, see <http://www.gnu.org/licenses/>.
+\*****************************************************************************/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+#include <regex.h>
+#include "zpios.h"
+
+/* extracts an unsigned int (64) and K,M,G,T from the string */
+/* and returns a 64 bit value converted to the proper units */
+static int
+kmgt_to_uint64(const char *str, uint64_t *val)
+{
+ char *endptr;
+ int rc = 0;
+
+ *val = strtoll(str, &endptr, 0);
+ if ((str == endptr) && (*val == 0))
+ return EINVAL;
+
+ switch (endptr[0]) {
+ case 'k': case 'K':
+ *val = (*val) << 10;
+ break;
+ case 'm': case 'M':
+ *val = (*val) << 20;
+ break;
+ case 'g': case 'G':
+ *val = (*val) << 30;
+ break;
+ case 't': case 'T':
+ *val = (*val) << 40;
+ break;
+ case '\0':
+ break;
+ default:
+ rc = EINVAL;
+ }
+
+ return rc;
+}
+
+static char *
+uint64_to_kmgt(char *str, uint64_t val)
+{
+ char postfix[] = "kmgt";
+ int i = -1;
+
+ while ((val >= KB) && (i < 4)) {
+ val = (val >> 10);
+ i++;
+ }
+
+ if (i >= 4)
+ (void)snprintf(str, KMGT_SIZE-1, "inf");
+ else
+ (void)snprintf(str, KMGT_SIZE-1, "%lu%c", (unsigned long)val,
+ (i == -1) ? '\0' : postfix[i]);
+
+ return str;
+}
+
+static char *
+kmgt_per_sec(char *str, uint64_t v, double t)
+{
+ char postfix[] = "kmgt";
+ double val = ((double)v) / t;
+ int i = -1;
+
+ while ((val >= (double)KB) && (i < 4)) {
+ val /= (double)KB;
+ i++;
+ }
+
+ if (i >= 4)
+ (void)snprintf(str, KMGT_SIZE-1, "inf");
+ else
+ (void)snprintf(str, KMGT_SIZE-1, "%.2f%c", val,
+ (i == -1) ? '\0' : postfix[i]);
+
+ return str;
+}
+
+static char *
+print_flags(char *str, uint32_t flags)
+{
+ str[0] = (flags & DMU_WRITE) ? 'w' : '-';
+ str[1] = (flags & DMU_READ) ? 'r' : '-';
+ str[2] = (flags & DMU_VERIFY) ? 'v' : '-';
+ str[3] = (flags & DMU_REMOVE) ? 'c' : '-';
+ str[4] = (flags & DMU_FPP) ? 'p' : 's';
+ str[5] = (flags & (DMU_WRITE_ZC | DMU_READ_ZC)) ? 'z' : '-';
+ str[6] = (flags & DMU_WRITE_NOWAIT) ? 'O' : '-';
+ str[7] = '\0';
+
+ return str;
+}
+
+static int
+regex_match(const char *string, char *pattern)
+{
+ regex_t re = { 0 };
+ int rc;
+
+ rc = regcomp(&re, pattern, REG_EXTENDED | REG_NOSUB | REG_ICASE);
+ if (rc) {
+ fprintf(stderr, "Error: Couldn't do regcomp, %d\n", rc);
+ return rc;
+ }
+
+ rc = regexec(&re, string, (size_t) 0, NULL, 0);
+ regfree(&re);
+
+ return rc;
+}
+
+/* fills the pios_range_repeat structure of comma separated values */
+static int
+split_string(const char *optarg, char *pattern, range_repeat_t *range)
+{
+ const char comma[] = ",";
+ char *cp, *token[32];
+ int rc, i = 0;
+
+ if ((rc = regex_match(optarg, pattern)))
+ return rc;
+
+ cp = strdup(optarg);
+ if (cp == NULL)
+ return ENOMEM;
+
+ do {
+ /* STRTOK(3) Each subsequent call, with a null pointer as the
+ * value of the * first argument, starts searching from the
+ * saved pointer and behaves as described above.
+ */
+ token[i] = strtok(cp, comma);
+ cp = NULL;
+ } while ((token[i++] != NULL) && (i < 32));
+
+ range->val_count = i - 1;
+
+ for (i = 0; i < range->val_count; i++)
+ kmgt_to_uint64(token[i], &range->val[i]);
+
+ free(cp);
+ return 0;
+}
+
+int
+set_count(char *pattern1, char *pattern2, range_repeat_t *range,
+ char *optarg, uint32_t *flags, char *arg)
+{
+ if (flags)
+ *flags |= FLAG_SET;
+
+ range->next_val = 0;
+
+ if (regex_match(optarg, pattern1) == 0) {
+ kmgt_to_uint64(optarg, &range->val[0]);
+ range->val_count = 1;
+ } else if (split_string(optarg, pattern2, range) < 0) {
+ fprintf(stderr, "Error: Incorrect pattern for %s, '%s'\n",
+ arg, optarg);
+ return EINVAL;
+ }
+
+ return 0;
+}
+
+/* validates the value with regular expression and sets low, high, incr
+ * according to value at which flag will be set. Sets the flag after. */
+int
+set_lhi(char *pattern, range_repeat_t *range, char *optarg,
+ int flag, uint32_t *flag_thread, char *arg)
+{
+ int rc;
+
+ if ((rc = regex_match(optarg, pattern))) {
+ fprintf(stderr, "Error: Wrong pattern in %s, '%s'\n",
+ arg, optarg);
+ return rc;
+ }
+
+ switch (flag) {
+ case FLAG_LOW:
+ kmgt_to_uint64(optarg, &range->val_low);
+ break;
+ case FLAG_HIGH:
+ kmgt_to_uint64(optarg, &range->val_high);
+ break;
+ case FLAG_INCR:
+ kmgt_to_uint64(optarg, &range->val_inc_perc);
+ break;
+ default:
+ assert(0);
+ }
+
+ *flag_thread |= flag;
+
+ return 0;
+}
+
+int
+set_noise(uint64_t *noise, char *optarg, char *arg)
+{
+ if (regex_match(optarg, REGEX_NUMBERS) == 0) {
+ kmgt_to_uint64(optarg, noise);
+ } else {
+ fprintf(stderr, "Error: Incorrect pattern for %s\n", arg);
+ return EINVAL;
+ }
+
+ return 0;
+}
+
+int
+set_load_params(cmd_args_t *args, char *optarg)
+{
+ char *param, *search, comma[] = ",";
+ int rc = 0;
+
+ search = strdup(optarg);
+ if (search == NULL)
+ return ENOMEM;
+
+ while ((param = strtok(search, comma)) != NULL) {
+ search = NULL;
+
+ if (strcmp("fpp", param) == 0) {
+ args->flags |= DMU_FPP; /* File Per Process/Thread */
+ } else if (strcmp("ssf", param) == 0) {
+ args->flags &= ~DMU_FPP; /* Single Shared File */
+ } else if (strcmp("dmuio", param) == 0) {
+ args->io_type |= DMU_IO;
+ args->flags |= (DMU_WRITE | DMU_READ);
+ } else {
+ fprintf(stderr, "Invalid load: %s\n", param);
+ rc = EINVAL;
+ }
+ }
+
+ free(search);
+
+ return rc;
+}
+
+
+/* checks the low, high, increment values against the single value for
+ * mutual exclusion, for e.g threadcount is mutually exclusive to
+ * threadcount_low, ..._high, ..._incr */
+int
+check_mutual_exclusive_command_lines(uint32_t flag, char *arg)
+{
+ if ((flag & FLAG_SET) && (flag & (FLAG_LOW | FLAG_HIGH | FLAG_INCR))) {
+ fprintf(stderr, "Error: --%s can not be given with --%s_low, "
+ "--%s_high or --%s_incr.\n", arg, arg, arg, arg);
+ return 0;
+ }
+
+ if ((flag & (FLAG_LOW | FLAG_HIGH | FLAG_INCR)) && !(flag & FLAG_SET)){
+ if (flag != (FLAG_LOW | FLAG_HIGH | FLAG_INCR)) {
+ fprintf(stderr, "Error: One or more values missing "
+ "from --%s_low, --%s_high, --%s_incr.\n",
+ arg, arg, arg);
+ return 0;
+ }
+ }
+
+ return 1;
+}
+
+void
+print_stats_header(cmd_args_t *args)
+{
+ if (args->verbose) {
+ printf("status name id\tth-cnt\trg-cnt\trg-sz\t"
+ "ch-sz\toffset\trg-no\tch-no\tth-dly\tflags\ttime\t"
+ "cr-time\trm-time\twr-time\trd-time\twr-data\twr-ch\t"
+ "wr-bw\trd-data\trd-ch\trd-bw\n");
+ printf("------------------------------------------------"
+ "------------------------------------------------"
+ "------------------------------------------------"
+ "----------------------------------------------\n");
+ } else {
+ printf("status name id\t"
+ "wr-data\twr-ch\twr-bw\t"
+ "rd-data\trd-ch\trd-bw\n");
+ printf("-----------------------------------------"
+ "--------------------------------------\n");
+ }
+}
+
+static void
+print_stats_human_readable(cmd_args_t *args, zpios_cmd_t *cmd)
+{
+ zpios_stats_t *summary_stats;
+ double t_time, wr_time, rd_time, cr_time, rm_time;
+ char str[KMGT_SIZE];
+
+ if (args->rc)
+ printf("FAIL: %3d ", args->rc);
+ else
+ printf("PASS: ");
+
+ printf("%-12s", args->name ? args->name : ZPIOS_NAME);
+ printf("%2u\t", cmd->cmd_id);
+
+ if (args->verbose) {
+ printf("%u\t", cmd->cmd_thread_count);
+ printf("%u\t", cmd->cmd_region_count);
+ printf("%s\t", uint64_to_kmgt(str, cmd->cmd_region_size));
+ printf("%s\t", uint64_to_kmgt(str, cmd->cmd_chunk_size));
+ printf("%s\t", uint64_to_kmgt(str, cmd->cmd_offset));
+ printf("%s\t", uint64_to_kmgt(str, cmd->cmd_region_noise));
+ printf("%s\t", uint64_to_kmgt(str, cmd->cmd_chunk_noise));
+ printf("%s\t", uint64_to_kmgt(str, cmd->cmd_thread_delay));
+ printf("%s\t", print_flags(str, cmd->cmd_flags));
+ }
+
+ if (args->rc) {
+ printf("\n");
+ return;
+ }
+
+ summary_stats = (zpios_stats_t *)cmd->cmd_data_str;
+ t_time = zpios_timespec_to_double(summary_stats->total_time.delta);
+ wr_time = zpios_timespec_to_double(summary_stats->wr_time.delta);
+ rd_time = zpios_timespec_to_double(summary_stats->rd_time.delta);
+ cr_time = zpios_timespec_to_double(summary_stats->cr_time.delta);
+ rm_time = zpios_timespec_to_double(summary_stats->rm_time.delta);
+
+ if (args->verbose) {
+ printf("%.2f\t", t_time);
+ printf("%.3f\t", cr_time);
+ printf("%.3f\t", rm_time);
+ printf("%.2f\t", wr_time);
+ printf("%.2f\t", rd_time);
+ }
+
+ printf("%s\t", uint64_to_kmgt(str, summary_stats->wr_data));
+ printf("%s\t", uint64_to_kmgt(str, summary_stats->wr_chunks));
+ printf("%s\t", kmgt_per_sec(str, summary_stats->wr_data, wr_time));
+
+ printf("%s\t", uint64_to_kmgt(str, summary_stats->rd_data));
+ printf("%s\t", uint64_to_kmgt(str, summary_stats->rd_chunks));
+ printf("%s\n", kmgt_per_sec(str, summary_stats->rd_data, rd_time));
+ fflush(stdout);
+}
+
+static void
+print_stats_table(cmd_args_t *args, zpios_cmd_t *cmd)
+{
+ zpios_stats_t *summary_stats;
+ double wr_time, rd_time;
+
+ if (args->rc)
+ printf("FAIL: %3d ", args->rc);
+ else
+ printf("PASS: ");
+
+ printf("%-12s", args->name ? args->name : ZPIOS_NAME);
+ printf("%2u\t", cmd->cmd_id);
+
+ if (args->verbose) {
+ printf("%u\t", cmd->cmd_thread_count);
+ printf("%u\t", cmd->cmd_region_count);
+ printf("%llu\t", (long long unsigned)cmd->cmd_region_size);
+ printf("%llu\t", (long long unsigned)cmd->cmd_chunk_size);
+ printf("%llu\t", (long long unsigned)cmd->cmd_offset);
+ printf("%u\t", cmd->cmd_region_noise);
+ printf("%u\t", cmd->cmd_chunk_noise);
+ printf("%u\t", cmd->cmd_thread_delay);
+ printf("0x%x\t", cmd->cmd_flags);
+ }
+
+ if (args->rc) {
+ printf("\n");
+ return;
+ }
+
+ summary_stats = (zpios_stats_t *)cmd->cmd_data_str;
+ wr_time = zpios_timespec_to_double(summary_stats->wr_time.delta);
+ rd_time = zpios_timespec_to_double(summary_stats->rd_time.delta);
+
+ if (args->verbose) {
+ printf("%ld.%02ld\t",
+ (long)summary_stats->total_time.delta.ts_sec,
+ (long)summary_stats->total_time.delta.ts_nsec);
+ printf("%ld.%02ld\t",
+ (long)summary_stats->cr_time.delta.ts_sec,
+ (long)summary_stats->cr_time.delta.ts_nsec);
+ printf("%ld.%02ld\t",
+ (long)summary_stats->rm_time.delta.ts_sec,
+ (long)summary_stats->rm_time.delta.ts_nsec);
+ printf("%ld.%02ld\t",
+ (long)summary_stats->wr_time.delta.ts_sec,
+ (long)summary_stats->wr_time.delta.ts_nsec);
+ printf("%ld.%02ld\t",
+ (long)summary_stats->rd_time.delta.ts_sec,
+ (long)summary_stats->rd_time.delta.ts_nsec);
+ }
+
+ printf("%lld\t", (long long unsigned)summary_stats->wr_data);
+ printf("%lld\t", (long long unsigned)summary_stats->wr_chunks);
+ printf("%.4f\t", (double)summary_stats->wr_data / wr_time);
+
+ printf("%lld\t", (long long unsigned)summary_stats->rd_data);
+ printf("%lld\t", (long long unsigned)summary_stats->rd_chunks);
+ printf("%.4f\n", (double)summary_stats->rd_data / rd_time);
+ fflush(stdout);
+}
+
+void
+print_stats(cmd_args_t *args, zpios_cmd_t *cmd)
+{
+ if (args->human_readable)
+ print_stats_human_readable(args, cmd);
+ else
+ print_stats_table(args, cmd);
+}
ETCDIR=\${TOPDIR}/etc
DEVDIR=\${TOPDIR}/dev
ZPOOLDIR=\${TOPDIR}/scripts/zpool-config
+ZPIOSDIR=\${TOPDIR}/scripts/zpios-test
+ZPIOSPROFILEDIR=\${TOPDIR}/scripts/zpios-profile
ZDB=\${CMDDIR}/zdb/zdb
ZFS=\${CMDDIR}/zfs/zfs
ZPOOL=\${CMDDIR}/zpool/zpool
ZPOOL_ID=\${CMDDIR}/zpool_id/zpool_id
ZTEST=\${CMDDIR}/ztest/ztest
+ZPIOS=\${CMDDIR}/zpios/zpios
COMMON_SH=\${SCRIPTDIR}/common.sh
ZFS_SH=\${SCRIPTDIR}/zfs.sh
ZPOOL_CREATE_SH=\${SCRIPTDIR}/zpool-create.sh
+ZPIOS_SH=\${SCRIPTDIR}/zpios.sh
+ZPIOS_SURVEY_SH=\${SCRIPTDIR}/zpios-survey.sh
INTREE=1
LDMOD=/sbin/insmod
\${MODDIR}/zfs/zfs.ko \\
)
+ZPIOS_MODULES=( \\
+ \${MODDIR}/zpios/zpios.ko \\
+)
+
MODULES=( \\
\${KERNEL_MODULES[[*]]} \\
\${SPL_MODULES[[*]]} \\
cmd/zpool_id/Makefile
cmd/zpool_layout/Makefile
cmd/ztest/Makefile
+ cmd/zpios/Makefile
module/Makefile
module/avl/Makefile
module/nvpair/Makefile
module/unicode/Makefile
module/zcommon/Makefile
module/zfs/Makefile
+ module/zpios/Makefile
scripts/Makefile
scripts/common.sh
zfs.spec
subdir-m += unicode
subdir-m += zcommon
subdir-m += zfs
+subdir-m += zpios
modules:
# Make the exported SPL symbols available to these modules.
--- /dev/null
+MODULE := zpios
+
+EXTRA_CFLAGS = -I@MODDIR@/zfs/include
+EXTRA_CFLAGS += -I@MODDIR@/zcommon/include
+EXTRA_CFLAGS += -I@MODDIR@/avl/include
+EXTRA_CFLAGS += -I@MODDIR@/nvpair/include
+EXTRA_CFLAGS += -I@MODDIR@/unicode/include
+EXTRA_CFLAGS += -I@MODDIR@/zpios/include
+EXTRA_CFLAGS += @KERNELCPPFLAGS@
+
+obj-m := ${MODULE}.o
--- /dev/null
+/*****************************************************************************\
+ * ZPIOS is a heavily modified version of the original PIOS test code.
+ * It is designed to have the test code running in the Linux kernel
+ * against ZFS while still being flexibly controled from user space.
+ *
+ * Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC.
+ * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
+ * LLNL-CODE-403049
+ *
+ * Original PIOS Test Code
+ * Copyright (C) 2004 Cluster File Systems, Inc.
+ * Written by Peter Braam <braam@clusterfs.com>
+ * Atul Vidwansa <atul@clusterfs.com>
+ * Milind Dumbare <milind@clusterfs.com>
+ *
+ * This file is part of ZFS on Linux.
+ * For details, see <http://github.com/behlendorf/zfs/>.
+ *
+ * ZPIOS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * ZPIOS is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with ZPIOS. If not, see <http://www.gnu.org/licenses/>.
+\*****************************************************************************/
+
+#ifndef _ZPIOS_CTL_H
+#define _ZPIOS_CTL_H
+
+/* Contains shared definitions which both the userspace
+ * and kernelspace portions of zpios must agree on.
+ */
+#ifndef _KERNEL
+#include <stdint.h>
+#endif
+
+#define ZPIOS_MAJOR 232 /* XXX - Arbitrary */
+#define ZPIOS_MINORS 1
+#define ZPIOS_NAME "zpios"
+#define ZPIOS_DEV "/dev/zpios"
+
+#define DMU_IO 0x01
+
+#define DMU_WRITE 0x0001
+#define DMU_READ 0x0002
+#define DMU_VERIFY 0x0004
+#define DMU_REMOVE 0x0008
+#define DMU_FPP 0x0010
+#define DMU_WRITE_ZC 0x0020 /* Incompatible w/DMU_VERIFY */
+#define DMU_READ_ZC 0x0040 /* Incompatible w/DMU_VERIFY */
+#define DMU_WRITE_NOWAIT 0x0080
+#define DMU_READ_NOPF 0x0100
+
+#define ZPIOS_NAME_SIZE 16
+#define ZPIOS_PATH_SIZE 128
+
+#define PHASE_PRE_RUN "pre-run"
+#define PHASE_PRE_CREATE "pre-create"
+#define PHASE_PRE_WRITE "pre-write"
+#define PHASE_PRE_READ "pre-read"
+#define PHASE_PRE_REMOVE "pre-remove"
+#define PHASE_POST_RUN "post-run"
+#define PHASE_POST_CREATE "post-create"
+#define PHASE_POST_WRITE "post-write"
+#define PHASE_POST_READ "post-read"
+#define PHASE_POST_REMOVE "post-remove"
+
+#define ZPIOS_CFG_MAGIC 0x87237190U
+typedef struct zpios_cfg {
+ uint32_t cfg_magic; /* Unique magic */
+ int32_t cfg_cmd; /* Config command */
+ int32_t cfg_arg1; /* Config command arg 1 */
+ int32_t cfg_rc1; /* Config response 1 */
+} zpios_cfg_t;
+
+typedef struct zpios_timespec {
+ uint32_t ts_sec;
+ uint32_t ts_nsec;
+} zpios_timespec_t;
+
+typedef struct zpios_time {
+ zpios_timespec_t start;
+ zpios_timespec_t stop;
+ zpios_timespec_t delta;
+} zpios_time_t;
+
+typedef struct zpios_stats {
+ zpios_time_t total_time;
+ zpios_time_t cr_time;
+ zpios_time_t rm_time;
+ zpios_time_t wr_time;
+ zpios_time_t rd_time;
+ uint64_t wr_data;
+ uint64_t wr_chunks;
+ uint64_t rd_data;
+ uint64_t rd_chunks;
+} zpios_stats_t;
+
+#define ZPIOS_CMD_MAGIC 0x49715385U
+typedef struct zpios_cmd {
+ uint32_t cmd_magic; /* Unique magic */
+ uint32_t cmd_id; /* Run ID */
+ char cmd_pool[ZPIOS_NAME_SIZE]; /* Pool name */
+ uint64_t cmd_chunk_size; /* Chunk size */
+ uint32_t cmd_thread_count; /* Thread count */
+ uint32_t cmd_region_count; /* Region count */
+ uint64_t cmd_region_size; /* Region size */
+ uint64_t cmd_offset; /* Region offset */
+ uint32_t cmd_region_noise; /* Region noise */
+ uint32_t cmd_chunk_noise; /* Chunk noise */
+ uint32_t cmd_thread_delay; /* Thread delay */
+ uint32_t cmd_flags; /* Test flags */
+ char cmd_pre[ZPIOS_PATH_SIZE]; /* Pre-exec hook */
+ char cmd_post[ZPIOS_PATH_SIZE]; /* Post-exec hook */
+ char cmd_log[ZPIOS_PATH_SIZE]; /* Requested log dir */
+ uint64_t cmd_data_size; /* Opaque data size */
+ char cmd_data_str[0]; /* Opaque data region */
+} zpios_cmd_t;
+
+/* Valid ioctls */
+#define ZPIOS_CFG _IOWR('f', 101, zpios_cfg_t)
+#define ZPIOS_CMD _IOWR('f', 102, zpios_cmd_t)
+
+/* Valid configuration commands */
+#define ZPIOS_CFG_BUFFER_CLEAR 0x001 /* Clear text buffer */
+#define ZPIOS_CFG_BUFFER_SIZE 0x002 /* Resize text buffer */
+
+#ifndef NSEC_PER_SEC
+#define NSEC_PER_SEC 1000000000L
+#endif
+
+static inline
+void zpios_timespec_normalize(zpios_timespec_t *ts, uint32_t sec, uint32_t nsec)
+{
+ while (nsec >= NSEC_PER_SEC) {
+ nsec -= NSEC_PER_SEC;
+ sec++;
+ }
+ while (nsec < 0) {
+ nsec += NSEC_PER_SEC;
+ sec--;
+ }
+ ts->ts_sec = sec;
+ ts->ts_nsec = nsec;
+}
+
+static inline
+zpios_timespec_t zpios_timespec_add(zpios_timespec_t lhs, zpios_timespec_t rhs)
+{
+ zpios_timespec_t ts_delta;
+ zpios_timespec_normalize(&ts_delta, lhs.ts_sec + rhs.ts_sec,
+ lhs.ts_nsec + rhs.ts_nsec);
+ return ts_delta;
+}
+
+static inline
+zpios_timespec_t zpios_timespec_sub(zpios_timespec_t lhs, zpios_timespec_t rhs)
+{
+ zpios_timespec_t ts_delta;
+ zpios_timespec_normalize(&ts_delta, lhs.ts_sec - rhs.ts_sec,
+ lhs.ts_nsec - rhs.ts_nsec);
+ return ts_delta;
+}
+
+#ifdef _KERNEL
+
+static inline
+zpios_timespec_t zpios_timespec_now(void)
+{
+ zpios_timespec_t zts_now;
+ struct timespec ts_now;
+
+ ts_now = current_kernel_time();
+ zts_now.ts_sec = ts_now.tv_sec;
+ zts_now.ts_nsec = ts_now.tv_nsec;
+
+ return zts_now;
+}
+
+#else
+
+static inline
+double zpios_timespec_to_double(zpios_timespec_t ts)
+{
+ return ((double)(ts.ts_sec) +
+ ((double)(ts.ts_nsec) / (double)(NSEC_PER_SEC)));
+}
+
+#endif /* _KERNEL */
+
+#endif /* _ZPIOS_CTL_H */
--- /dev/null
+/*****************************************************************************\
+ * ZPIOS is a heavily modified version of the original PIOS test code.
+ * It is designed to have the test code running in the Linux kernel
+ * against ZFS while still being flexibly controled from user space.
+ *
+ * Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC.
+ * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
+ * LLNL-CODE-403049
+ *
+ * Original PIOS Test Code
+ * Copyright (C) 2004 Cluster File Systems, Inc.
+ * Written by Peter Braam <braam@clusterfs.com>
+ * Atul Vidwansa <atul@clusterfs.com>
+ * Milind Dumbare <milind@clusterfs.com>
+ *
+ * This file is part of ZFS on Linux.
+ * For details, see <http://github.com/behlendorf/zfs/>.
+ *
+ * ZPIOS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * ZPIOS is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with ZPIOS. If not, see <http://www.gnu.org/licenses/>.
+\*****************************************************************************/
+
+#ifndef _ZPIOS_INTERNAL_H
+#define _ZPIOS_INTERNAL_H
+
+#include "zpios-ctl.h"
+
+#define OBJ_SIZE 64
+
+struct run_args;
+
+typedef struct dmu_obj {
+ objset_t *os;
+ uint64_t obj;
+} dmu_obj_t;
+
+/* thread doing the IO data */
+typedef struct thread_data {
+ struct run_args *run_args;
+ int thread_no;
+ int rc;
+ zpios_stats_t stats;
+ kmutex_t lock;
+} thread_data_t;
+
+/* region for IO data */
+typedef struct zpios_region {
+ __u64 wr_offset;
+ __u64 rd_offset;
+ __u64 init_offset;
+ __u64 max_offset;
+ dmu_obj_t obj;
+ zpios_stats_t stats;
+ kmutex_t lock;
+} zpios_region_t;
+
+/* arguments for one run */
+typedef struct run_args {
+ /* Config args */
+ int id;
+ char pool[ZPIOS_NAME_SIZE];
+ __u64 chunk_size;
+ __u32 thread_count;
+ __u32 region_count;
+ __u64 region_size;
+ __u64 offset;
+ __u32 region_noise;
+ __u32 chunk_noise;
+ __u32 thread_delay;
+ __u32 flags;
+ char pre[ZPIOS_PATH_SIZE];
+ char post[ZPIOS_PATH_SIZE];
+ char log[ZPIOS_PATH_SIZE];
+
+ /* Control data */
+ objset_t *os;
+ wait_queue_head_t waitq;
+ volatile uint64_t threads_done;
+ kmutex_t lock_work;
+ kmutex_t lock_ctl;
+ __u32 region_next;
+
+ /* Results data */
+ struct file *file;
+ zpios_stats_t stats;
+
+ thread_data_t **threads;
+ zpios_region_t regions[0]; /* Must be last element */
+} run_args_t;
+
+#define ZPIOS_INFO_BUFFER_SIZE 65536
+#define ZPIOS_INFO_BUFFER_REDZONE 1024
+
+typedef struct zpios_info {
+ spinlock_t info_lock;
+ int info_size;
+ char *info_buffer;
+ char *info_head; /* Internal kernel use only */
+} zpios_info_t;
+
+#define zpios_print(file, format, args...) \
+({ zpios_info_t *_info_ = (zpios_info_t *)file->private_data; \
+ int _rc_; \
+ \
+ ASSERT(_info_); \
+ ASSERT(_info_->info_buffer); \
+ \
+ spin_lock(&_info_->info_lock); \
+ \
+ /* Don't allow the kernel to start a write in the red zone */ \
+ if ((int)(_info_->info_head - _info_->info_buffer) > \
+ (_info_->info_size - ZPIOS_INFO_BUFFER_REDZONE)) { \
+ _rc_ = -EOVERFLOW; \
+ } else { \
+ _rc_ = sprintf(_info_->info_head, format, args); \
+ if (_rc_ >= 0) \
+ _info_->info_head += _rc_; \
+ } \
+ \
+ spin_unlock(&_info_->info_lock); \
+ _rc_; \
+})
+
+#define zpios_vprint(file, test, format, args...) \
+ zpios_print(file, "%*s: " format, ZPIOS_NAME_SIZE, test, args)
+
+#endif /* _ZPIOS_INTERNAL_H */
--- /dev/null
+/*****************************************************************************\
+ * ZPIOS is a heavily modified version of the original PIOS test code.
+ * It is designed to have the test code running in the Linux kernel
+ * against ZFS while still being flexibly controled from user space.
+ *
+ * Copyright (C) 2008-2010 Lawrence Livermore National Security, LLC.
+ * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
+ * Written by Brian Behlendorf <behlendorf1@llnl.gov>.
+ * LLNL-CODE-403049
+ *
+ * Original PIOS Test Code
+ * Copyright (C) 2004 Cluster File Systems, Inc.
+ * Written by Peter Braam <braam@clusterfs.com>
+ * Atul Vidwansa <atul@clusterfs.com>
+ * Milind Dumbare <milind@clusterfs.com>
+ *
+ * This file is part of ZFS on Linux.
+ * For details, see <http://github.com/behlendorf/zfs/>.
+ *
+ * ZPIOS is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version.
+ *
+ * ZPIOS is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with ZPIOS. If not, see <http://www.gnu.org/licenses/>.
+\*****************************************************************************/
+
+#include <sys/zfs_context.h>
+#include <sys/dmu.h>
+#include <sys/txg.h>
+#include <linux/cdev.h>
+#include "zpios-internal.h"
+
+
+static spl_class *zpios_class;
+static spl_device *zpios_device;
+static char *zpios_tag = "zpios_tag";
+
+static
+int zpios_upcall(char *path, char *phase, run_args_t *run_args, int rc)
+{
+ /* This is stack heavy but it should be OK since we are only
+ * making the upcall between tests when the stack is shallow.
+ */
+ char id[16], chunk_size[16], region_size[16], thread_count[16];
+ char region_count[16], offset[16], region_noise[16], chunk_noise[16];
+ char thread_delay[16], flags[16], result[8];
+ char *argv[16], *envp[4];
+
+ if ((path == NULL) || (strlen(path) == 0))
+ return -ENOENT;
+
+ snprintf(id, 15, "%d", run_args->id);
+ snprintf(chunk_size, 15, "%lu", (long unsigned)run_args->chunk_size);
+ snprintf(region_size, 15, "%lu",(long unsigned) run_args->region_size);
+ snprintf(thread_count, 15, "%u", run_args->thread_count);
+ snprintf(region_count, 15, "%u", run_args->region_count);
+ snprintf(offset, 15, "%lu", (long unsigned)run_args->offset);
+ snprintf(region_noise, 15, "%u", run_args->region_noise);
+ snprintf(chunk_noise, 15, "%u", run_args->chunk_noise);
+ snprintf(thread_delay, 15, "%u", run_args->thread_delay);
+ snprintf(flags, 15, "0x%x", run_args->flags);
+ snprintf(result, 7, "%d", rc);
+
+ /* Passing 15 args to registered pre/post upcall */
+ argv[0] = path;
+ argv[1] = phase;
+ argv[2] = strlen(run_args->log) ? run_args->log : "<none>";
+ argv[3] = id;
+ argv[4] = run_args->pool;
+ argv[5] = chunk_size;
+ argv[6] = region_size;
+ argv[7] = thread_count;
+ argv[8] = region_count;
+ argv[9] = offset;
+ argv[10] = region_noise;
+ argv[11] = chunk_noise;
+ argv[12] = thread_delay;
+ argv[13] = flags;
+ argv[14] = result;
+ argv[15] = NULL;
+
+ /* Passing environment for user space upcall */
+ envp[0] = "HOME=/";
+ envp[1] = "TERM=linux";
+ envp[2] = "PATH=/sbin:/usr/sbin:/bin:/usr/bin";
+ envp[3] = NULL;
+
+ return call_usermodehelper(path, argv, envp, 1);
+}
+
+static uint64_t
+zpios_dmu_object_create(run_args_t *run_args, objset_t *os)
+{
+ struct dmu_tx *tx;
+ uint64_t obj = 0ULL;
+ int rc;
+
+ tx = dmu_tx_create(os);
+ dmu_tx_hold_write(tx, DMU_NEW_OBJECT, 0, OBJ_SIZE);
+ rc = dmu_tx_assign(tx, TXG_WAIT);
+ if (rc) {
+ zpios_print(run_args->file,
+ "dmu_tx_assign() failed: %d\n", rc);
+ dmu_tx_abort(tx);
+ return obj;
+ }
+
+ obj = dmu_object_alloc(os, DMU_OT_UINT64_OTHER, 0,
+ DMU_OT_NONE, 0, tx);
+ rc = dmu_object_set_blocksize(os, obj, 128ULL << 10, 0, tx);
+ if (rc) {
+ zpios_print(run_args->file,
+ "dmu_object_set_blocksize() failed: %d\n", rc);
+ dmu_tx_abort(tx);
+ return obj;
+ }
+
+ dmu_tx_commit(tx);
+
+ return obj;
+}
+
+static int
+zpios_dmu_object_free(run_args_t *run_args, objset_t *os, uint64_t obj)
+{
+ struct dmu_tx *tx;
+ int rc;
+
+ tx = dmu_tx_create(os);
+ dmu_tx_hold_free(tx, obj, 0, DMU_OBJECT_END);
+ rc = dmu_tx_assign(tx, TXG_WAIT);
+ if (rc) {
+ zpios_print(run_args->file,
+ "dmu_tx_assign() failed: %d\n", rc);
+ dmu_tx_abort(tx);
+ return rc;
+ }
+
+ rc = dmu_object_free(os, obj, tx);
+ if (rc) {
+ zpios_print(run_args->file,
+ "dmu_object_free() failed: %d\n", rc);
+ dmu_tx_abort(tx);
+ return rc;
+ }
+
+ dmu_tx_commit(tx);
+
+ return 0;
+}
+
+static int
+zpios_dmu_setup(run_args_t *run_args)
+{
+ zpios_time_t *t = &(run_args->stats.cr_time);
+ objset_t *os;
+ char name[32];
+ uint64_t obj = 0ULL;
+ int i, rc = 0, rc2;
+
+ (void)zpios_upcall(run_args->pre, PHASE_PRE_CREATE, run_args, 0);
+ t->start = zpios_timespec_now();
+
+ (void)snprintf(name, 32, "%s/id_%d", run_args->pool, run_args->id);
+ rc = dmu_objset_create(name, DMU_OST_OTHER, 0, NULL, NULL);
+ if (rc) {
+ zpios_print(run_args->file, "Error dmu_objset_create(%s, ...) "
+ "failed: %d\n", name, rc);
+ goto out;
+ }
+
+ rc = dmu_objset_own(name, DMU_OST_OTHER, 0, zpios_tag, &os);
+ if (rc) {
+ zpios_print(run_args->file, "Error dmu_objset_own(%s, ...) "
+ "failed: %d\n", name, rc);
+ goto out_destroy;
+ }
+
+ if (!(run_args->flags & DMU_FPP)) {
+ obj = zpios_dmu_object_create(run_args, os);
+ if (obj == 0) {
+ rc = -EBADF;
+ zpios_print(run_args->file, "Error zpios_dmu_"
+ "object_create() failed, %d\n", rc);
+ goto out_destroy;
+ }
+ }
+
+ for (i = 0; i < run_args->region_count; i++) {
+ zpios_region_t *region;
+
+ region = &run_args->regions[i];
+ mutex_init(®ion->lock, NULL, MUTEX_DEFAULT, NULL);
+
+ if (run_args->flags & DMU_FPP) {
+ /* File per process */
+ region->obj.os = os;
+ region->obj.obj = zpios_dmu_object_create(run_args, os);
+ ASSERT(region->obj.obj > 0); /* XXX - Handle this */
+ region->wr_offset = run_args->offset;
+ region->rd_offset = run_args->offset;
+ region->init_offset = run_args->offset;
+ region->max_offset = run_args->offset +
+ run_args->region_size;
+ } else {
+ /* Single shared file */
+ region->obj.os = os;
+ region->obj.obj = obj;
+ region->wr_offset = run_args->offset * i;
+ region->rd_offset = run_args->offset * i;
+ region->init_offset = run_args->offset * i;
+ region->max_offset = run_args->offset *
+ i + run_args->region_size;
+ }
+ }
+
+ run_args->os = os;
+out_destroy:
+ if (rc) {
+ rc2 = dmu_objset_destroy(name, B_FALSE);
+ if (rc2)
+ zpios_print(run_args->file, "Error dmu_objset_destroy"
+ "(%s, ...) failed: %d\n", name, rc2);
+ }
+out:
+ t->stop = zpios_timespec_now();
+ t->delta = zpios_timespec_sub(t->stop, t->start);
+ (void)zpios_upcall(run_args->post, PHASE_POST_CREATE, run_args, rc);
+
+ return rc;
+}
+
+static int
+zpios_setup_run(run_args_t **run_args, zpios_cmd_t *kcmd, struct file *file)
+{
+ run_args_t *ra;
+ int rc, size;
+
+ size = sizeof(*ra) + kcmd->cmd_region_count * sizeof(zpios_region_t);
+
+ ra = vmem_zalloc(size, KM_SLEEP);
+ if (ra == NULL) {
+ zpios_print(file, "Unable to vmem_zalloc() %d bytes "
+ "for regions\n", size);
+ return -ENOMEM;
+ }
+
+ *run_args = ra;
+ strncpy(ra->pool, kcmd->cmd_pool, ZPIOS_NAME_SIZE - 1);
+ strncpy(ra->pre, kcmd->cmd_pre, ZPIOS_PATH_SIZE - 1);
+ strncpy(ra->post, kcmd->cmd_post, ZPIOS_PATH_SIZE - 1);
+ strncpy(ra->log, kcmd->cmd_log, ZPIOS_PATH_SIZE - 1);
+ ra->id = kcmd->cmd_id;
+ ra->chunk_size = kcmd->cmd_chunk_size;
+ ra->thread_count = kcmd->cmd_thread_count;
+ ra->region_count = kcmd->cmd_region_count;
+ ra->region_size = kcmd->cmd_region_size;
+ ra->offset = kcmd->cmd_offset;
+ ra->region_noise = kcmd->cmd_region_noise;
+ ra->chunk_noise = kcmd->cmd_chunk_noise;
+ ra->thread_delay = kcmd->cmd_thread_delay;
+ ra->flags = kcmd->cmd_flags;
+ ra->stats.wr_data = 0;
+ ra->stats.wr_chunks = 0;
+ ra->stats.rd_data = 0;
+ ra->stats.rd_chunks = 0;
+ ra->region_next = 0;
+ ra->file = file;
+ mutex_init(&ra->lock_work, NULL, MUTEX_DEFAULT, NULL);
+ mutex_init(&ra->lock_ctl, NULL, MUTEX_DEFAULT, NULL);
+
+ (void)zpios_upcall(ra->pre, PHASE_PRE_RUN, ra, 0);
+
+ rc = zpios_dmu_setup(ra);
+ if (rc) {
+ mutex_destroy(&ra->lock_ctl);
+ mutex_destroy(&ra->lock_work);
+ vmem_free(ra, size);
+ *run_args = NULL;
+ }
+
+ return rc;
+}
+
+static int
+zpios_get_work_item(run_args_t *run_args, dmu_obj_t *obj, __u64 *offset,
+ __u32 *chunk_size, zpios_region_t **region, __u32 flags)
+{
+ int i, j, count = 0;
+ unsigned int random_int;
+
+ get_random_bytes(&random_int, sizeof(unsigned int));
+
+ mutex_enter(&run_args->lock_work);
+ i = run_args->region_next;
+
+ /* XXX: I don't much care for this chunk selection mechansim
+ * there's the potential to burn a lot of time here doing nothing
+ * useful while holding the global lock. This could give some
+ * misleading performance results. I'll fix it latter.
+ */
+ while (count < run_args->region_count) {
+ __u64 *rw_offset;
+ zpios_time_t *rw_time;
+
+ j = i % run_args->region_count;
+ *region = &(run_args->regions[j]);
+
+ if (flags & DMU_WRITE) {
+ rw_offset = &((*region)->wr_offset);
+ rw_time = &((*region)->stats.wr_time);
+ } else {
+ rw_offset = &((*region)->rd_offset);
+ rw_time = &((*region)->stats.rd_time);
+ }
+
+ /* test if region is fully written */
+ if (*rw_offset + *chunk_size > (*region)->max_offset) {
+ i++;
+ count++;
+
+ if (unlikely(rw_time->stop.ts_sec == 0) &&
+ unlikely(rw_time->stop.ts_nsec == 0))
+ rw_time->stop = zpios_timespec_now();
+
+ continue;
+ }
+
+ *offset = *rw_offset;
+ *obj = (*region)->obj;
+ *rw_offset += *chunk_size;
+
+ /* update ctl structure */
+ if (run_args->region_noise) {
+ get_random_bytes(&random_int, sizeof(unsigned int));
+ run_args->region_next += random_int % run_args->region_noise;
+ } else {
+ run_args->region_next++;
+ }
+
+ mutex_exit(&run_args->lock_work);
+ return 1;
+ }
+
+ /* nothing left to do */
+ mutex_exit(&run_args->lock_work);
+
+ return 0;
+}
+
+static void
+zpios_remove_objset(run_args_t *run_args)
+{
+ zpios_time_t *t = &(run_args->stats.rm_time);
+ zpios_region_t *region;
+ char name[32];
+ int rc = 0, i;
+
+ (void)zpios_upcall(run_args->pre, PHASE_PRE_REMOVE, run_args, 0);
+ t->start = zpios_timespec_now();
+
+ (void)snprintf(name, 32, "%s/id_%d", run_args->pool, run_args->id);
+
+ if (run_args->flags & DMU_REMOVE) {
+ if (run_args->flags & DMU_FPP) {
+ for (i = 0; i < run_args->region_count; i++) {
+ region = &run_args->regions[i];
+ rc = zpios_dmu_object_free(run_args,
+ region->obj.os,
+ region->obj.obj);
+ if (rc)
+ zpios_print(run_args->file, "Error "
+ "removing object %d, %d\n",
+ (int)region->obj.obj, rc);
+ }
+ } else {
+ region = &run_args->regions[0];
+ rc = zpios_dmu_object_free(run_args,
+ region->obj.os,
+ region->obj.obj);
+ if (rc)
+ zpios_print(run_args->file, "Error "
+ "removing object %d, %d\n",
+ (int)region->obj.obj, rc);
+ }
+ }
+
+ dmu_objset_disown(run_args->os, zpios_tag);
+
+ if (run_args->flags & DMU_REMOVE) {
+ rc = dmu_objset_destroy(name, B_FALSE);
+ if (rc)
+ zpios_print(run_args->file, "Error dmu_objset_destroy"
+ "(%s, ...) failed: %d\n", name, rc);
+ }
+
+ t->stop = zpios_timespec_now();
+ t->delta = zpios_timespec_sub(t->stop, t->start);
+ (void)zpios_upcall(run_args->post, PHASE_POST_REMOVE, run_args, rc);
+}
+
+static void
+zpios_cleanup_run(run_args_t *run_args)
+{
+ int i, size = 0;
+
+ if (run_args == NULL)
+ return;
+
+ if (run_args->threads != NULL) {
+ for (i = 0; i < run_args->thread_count; i++) {
+ if (run_args->threads[i]) {
+ mutex_destroy(&run_args->threads[i]->lock);
+ kmem_free(run_args->threads[i],
+ sizeof(thread_data_t));
+ }
+ }
+
+ kmem_free(run_args->threads,
+ sizeof(thread_data_t *) * run_args->thread_count);
+ }
+
+ for (i = 0; i < run_args->region_count; i++)
+ mutex_destroy(&run_args->regions[i].lock);
+
+ mutex_destroy(&run_args->lock_work);
+ mutex_destroy(&run_args->lock_ctl);
+ size = run_args->region_count * sizeof(zpios_region_t);
+
+ vmem_free(run_args, sizeof(*run_args) + size);
+}
+
+static int
+zpios_dmu_write(run_args_t *run_args, objset_t *os, uint64_t object,
+ uint64_t offset, uint64_t size, const void *buf)
+{
+ struct dmu_tx *tx;
+ int rc, how = TXG_WAIT;
+// int flags = 0;
+
+ if (run_args->flags & DMU_WRITE_NOWAIT)
+ how = TXG_NOWAIT;
+
+ while (1) {
+ tx = dmu_tx_create(os);
+ dmu_tx_hold_write(tx, object, offset, size);
+ rc = dmu_tx_assign(tx, how);
+
+ if (rc) {
+ if (rc == ERESTART && how == TXG_NOWAIT) {
+ dmu_tx_wait(tx);
+ dmu_tx_abort(tx);
+ continue;
+ }
+ zpios_print(run_args->file,
+ "Error in dmu_tx_assign(), %d", rc);
+ dmu_tx_abort(tx);
+ return rc;
+ }
+ break;
+ }
+
+// if (run_args->flags & DMU_WRITE_ZC)
+// flags |= DMU_WRITE_ZEROCOPY;
+
+ dmu_write(os, object, offset, size, buf, tx);
+ dmu_tx_commit(tx);
+
+ return 0;
+}
+
+static int
+zpios_dmu_read(run_args_t *run_args, objset_t *os, uint64_t object,
+ uint64_t offset, uint64_t size, void *buf)
+{
+ int flags = 0;
+
+// if (run_args->flags & DMU_READ_ZC)
+// flags |= DMU_READ_ZEROCOPY;
+
+ if (run_args->flags & DMU_READ_NOPF)
+ flags |= DMU_READ_NO_PREFETCH;
+
+ return dmu_read(os, object, offset, size, buf, flags);
+}
+
+static int
+zpios_thread_main(void *data)
+{
+ thread_data_t *thr = (thread_data_t *)data;
+ run_args_t *run_args = thr->run_args;
+ zpios_time_t t;
+ dmu_obj_t obj;
+ __u64 offset;
+ __u32 chunk_size;
+ zpios_region_t *region;
+ char *buf;
+ unsigned int random_int;
+ int chunk_noise = run_args->chunk_noise;
+ int chunk_noise_tmp = 0;
+ int thread_delay = run_args->thread_delay;
+ int thread_delay_tmp = 0;
+ int i, rc = 0;
+
+ if (chunk_noise) {
+ get_random_bytes(&random_int, sizeof(unsigned int));
+ chunk_noise_tmp = (random_int % (chunk_noise * 2))-chunk_noise;
+ }
+
+ /* It's OK to vmem_alloc() this memory because it will be copied
+ * in to the slab and pointers to the slab copy will be setup in
+ * the bio when the IO is submitted. This of course is not ideal
+ * since we want a zero-copy IO path if possible. It would be nice
+ * to have direct access to those slab entries.
+ */
+ chunk_size = run_args->chunk_size + chunk_noise_tmp;
+ buf = (char *)vmem_alloc(chunk_size, KM_SLEEP);
+ ASSERT(buf);
+
+ /* Trivial data verification pattern for now. */
+ if (run_args->flags & DMU_VERIFY)
+ memset(buf, 'z', chunk_size);
+
+ /* Write phase */
+ mutex_enter(&thr->lock);
+ thr->stats.wr_time.start = zpios_timespec_now();
+ mutex_exit(&thr->lock);
+
+ while (zpios_get_work_item(run_args, &obj, &offset,
+ &chunk_size, ®ion, DMU_WRITE)) {
+ if (thread_delay) {
+ get_random_bytes(&random_int, sizeof(unsigned int));
+ thread_delay_tmp = random_int % thread_delay;
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(thread_delay_tmp); /* In jiffies */
+ }
+
+ t.start = zpios_timespec_now();
+ rc = zpios_dmu_write(run_args, obj.os, obj.obj,
+ offset, chunk_size, buf);
+ t.stop = zpios_timespec_now();
+ t.delta = zpios_timespec_sub(t.stop, t.start);
+
+ if (rc) {
+ zpios_print(run_args->file, "IO error while doing "
+ "dmu_write(): %d\n", rc);
+ break;
+ }
+
+ mutex_enter(&thr->lock);
+ thr->stats.wr_data += chunk_size;
+ thr->stats.wr_chunks++;
+ thr->stats.wr_time.delta = zpios_timespec_add(
+ thr->stats.wr_time.delta, t.delta);
+ mutex_exit(&thr->lock);
+
+ mutex_enter(®ion->lock);
+ region->stats.wr_data += chunk_size;
+ region->stats.wr_chunks++;
+ region->stats.wr_time.delta = zpios_timespec_add(
+ region->stats.wr_time.delta, t.delta);
+
+ /* First time region was accessed */
+ if (region->init_offset == offset)
+ region->stats.wr_time.start = t.start;
+
+ mutex_exit(®ion->lock);
+ }
+
+ mutex_enter(&run_args->lock_ctl);
+ run_args->threads_done++;
+ mutex_exit(&run_args->lock_ctl);
+
+ mutex_enter(&thr->lock);
+ thr->rc = rc;
+ thr->stats.wr_time.stop = zpios_timespec_now();
+ mutex_exit(&thr->lock);
+ wake_up(&run_args->waitq);
+
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule();
+
+ /* Check if we should exit */
+ mutex_enter(&thr->lock);
+ rc = thr->rc;
+ mutex_exit(&thr->lock);
+ if (rc)
+ goto out;
+
+ /* Read phase */
+ mutex_enter(&thr->lock);
+ thr->stats.rd_time.start = zpios_timespec_now();
+ mutex_exit(&thr->lock);
+
+ while (zpios_get_work_item(run_args, &obj, &offset,
+ &chunk_size, ®ion, DMU_READ)) {
+ if (thread_delay) {
+ get_random_bytes(&random_int, sizeof(unsigned int));
+ thread_delay_tmp = random_int % thread_delay;
+ set_current_state(TASK_UNINTERRUPTIBLE);
+ schedule_timeout(thread_delay_tmp); /* In jiffies */
+ }
+
+ if (run_args->flags & DMU_VERIFY)
+ memset(buf, 0, chunk_size);
+
+ t.start = zpios_timespec_now();
+ rc = zpios_dmu_read(run_args, obj.os, obj.obj,
+ offset, chunk_size, buf);
+ t.stop = zpios_timespec_now();
+ t.delta = zpios_timespec_sub(t.stop, t.start);
+
+ if (rc) {
+ zpios_print(run_args->file, "IO error while doing "
+ "dmu_read(): %d\n", rc);
+ break;
+ }
+
+ /* Trivial data verification, expensive! */
+ if (run_args->flags & DMU_VERIFY) {
+ for (i = 0; i < chunk_size; i++) {
+ if (buf[i] != 'z') {
+ zpios_print(run_args->file,
+ "IO verify error: %d/%d/%d\n",
+ (int)obj.obj, (int)offset,
+ (int)chunk_size);
+ break;
+ }
+ }
+ }
+
+ mutex_enter(&thr->lock);
+ thr->stats.rd_data += chunk_size;
+ thr->stats.rd_chunks++;
+ thr->stats.rd_time.delta = zpios_timespec_add(
+ thr->stats.rd_time.delta, t.delta);
+ mutex_exit(&thr->lock);
+
+ mutex_enter(®ion->lock);
+ region->stats.rd_data += chunk_size;
+ region->stats.rd_chunks++;
+ region->stats.rd_time.delta = zpios_timespec_add(
+ region->stats.rd_time.delta, t.delta);
+
+ /* First time region was accessed */
+ if (region->init_offset == offset)
+ region->stats.rd_time.start = t.start;
+
+ mutex_exit(®ion->lock);
+ }
+
+ mutex_enter(&run_args->lock_ctl);
+ run_args->threads_done++;
+ mutex_exit(&run_args->lock_ctl);
+
+ mutex_enter(&thr->lock);
+ thr->rc = rc;
+ thr->stats.rd_time.stop = zpios_timespec_now();
+ mutex_exit(&thr->lock);
+ wake_up(&run_args->waitq);
+
+out:
+ vmem_free(buf, chunk_size);
+ do_exit(0);
+
+ return rc; /* Unreachable, due to do_exit() */
+}
+
+static int
+zpios_thread_done(run_args_t *run_args)
+{
+ ASSERT(run_args->threads_done <= run_args->thread_count);
+ return (run_args->threads_done == run_args->thread_count);
+}
+
+static int
+zpios_threads_run(run_args_t *run_args)
+{
+ struct task_struct *tsk, **tsks;
+ thread_data_t *thr = NULL;
+ zpios_time_t *tt = &(run_args->stats.total_time);
+ zpios_time_t *tw = &(run_args->stats.wr_time);
+ zpios_time_t *tr = &(run_args->stats.rd_time);
+ int i, rc = 0, tc = run_args->thread_count;
+
+ tsks = kmem_zalloc(sizeof(struct task_struct *) * tc, KM_SLEEP);
+ if (tsks == NULL) {
+ rc = -ENOMEM;
+ goto cleanup2;
+ }
+
+ run_args->threads = kmem_zalloc(sizeof(thread_data_t *) * tc, KM_SLEEP);
+ if (run_args->threads == NULL) {
+ rc = -ENOMEM;
+ goto cleanup;
+ }
+
+ init_waitqueue_head(&run_args->waitq);
+ run_args->threads_done = 0;
+
+ /* Create all the needed threads which will sleep until awoken */
+ for (i = 0; i < tc; i++) {
+ thr = kmem_zalloc(sizeof(thread_data_t), KM_SLEEP);
+ if (thr == NULL) {
+ rc = -ENOMEM;
+ goto taskerr;
+ }
+
+ thr->thread_no = i;
+ thr->run_args = run_args;
+ thr->rc = 0;
+ mutex_init(&thr->lock, NULL, MUTEX_DEFAULT, NULL);
+ run_args->threads[i] = thr;
+
+ tsk = kthread_create(zpios_thread_main, (void *)thr,
+ "%s/%d", "zpios_io", i);
+ if (IS_ERR(tsk)) {
+ rc = -EINVAL;
+ goto taskerr;
+ }
+
+ tsks[i] = tsk;
+ }
+
+ tt->start = zpios_timespec_now();
+
+ /* Wake up all threads for write phase */
+ (void)zpios_upcall(run_args->pre, PHASE_PRE_WRITE, run_args, 0);
+ for (i = 0; i < tc; i++)
+ wake_up_process(tsks[i]);
+
+ /* Wait for write phase to complete */
+ tw->start = zpios_timespec_now();
+ wait_event(run_args->waitq, zpios_thread_done(run_args));
+ tw->stop = zpios_timespec_now();
+ (void)zpios_upcall(run_args->post, PHASE_POST_WRITE, run_args, rc);
+
+ for (i = 0; i < tc; i++) {
+ thr = run_args->threads[i];
+
+ mutex_enter(&thr->lock);
+
+ if (!rc && thr->rc)
+ rc = thr->rc;
+
+ run_args->stats.wr_data += thr->stats.wr_data;
+ run_args->stats.wr_chunks += thr->stats.wr_chunks;
+ mutex_exit(&thr->lock);
+ }
+
+ if (rc) {
+ /* Wake up all threads and tell them to exit */
+ for (i = 0; i < tc; i++) {
+ mutex_enter(&thr->lock);
+ thr->rc = rc;
+ mutex_exit(&thr->lock);
+
+ wake_up_process(tsks[i]);
+ }
+ goto out;
+ }
+
+ mutex_enter(&run_args->lock_ctl);
+ ASSERT(run_args->threads_done == run_args->thread_count);
+ run_args->threads_done = 0;
+ mutex_exit(&run_args->lock_ctl);
+
+ /* Wake up all threads for read phase */
+ (void)zpios_upcall(run_args->pre, PHASE_PRE_READ, run_args, 0);
+ for (i = 0; i < tc; i++)
+ wake_up_process(tsks[i]);
+
+ /* Wait for read phase to complete */
+ tr->start = zpios_timespec_now();
+ wait_event(run_args->waitq, zpios_thread_done(run_args));
+ tr->stop = zpios_timespec_now();
+ (void)zpios_upcall(run_args->post, PHASE_POST_READ, run_args, rc);
+
+ for (i = 0; i < tc; i++) {
+ thr = run_args->threads[i];
+
+ mutex_enter(&thr->lock);
+
+ if (!rc && thr->rc)
+ rc = thr->rc;
+
+ run_args->stats.rd_data += thr->stats.rd_data;
+ run_args->stats.rd_chunks += thr->stats.rd_chunks;
+ mutex_exit(&thr->lock);
+ }
+out:
+ tt->stop = zpios_timespec_now();
+ tt->delta = zpios_timespec_sub(tt->stop, tt->start);
+ tw->delta = zpios_timespec_sub(tw->stop, tw->start);
+ tr->delta = zpios_timespec_sub(tr->stop, tr->start);
+
+cleanup:
+ kmem_free(tsks, sizeof(struct task_struct *) * tc);
+cleanup2:
+ /* Returns first encountered thread error (if any) */
+ return rc;
+
+taskerr:
+ /* Destroy all threads that were created successfully */
+ for (i = 0; i < tc; i++)
+ if (tsks[i] != NULL)
+ (void) kthread_stop(tsks[i]);
+
+ goto cleanup;
+}
+
+static int
+zpios_do_one_run(struct file *file, zpios_cmd_t *kcmd,
+ int data_size, void *data)
+{
+ run_args_t *run_args = { 0 };
+ zpios_stats_t *stats = (zpios_stats_t *)data;
+ int i, n, m, size, rc;
+
+ if ((!kcmd->cmd_chunk_size) || (!kcmd->cmd_region_size) ||
+ (!kcmd->cmd_thread_count) || (!kcmd->cmd_region_count)) {
+ zpios_print(file, "Invalid chunk_size, region_size, "
+ "thread_count, or region_count, %d\n", -EINVAL);
+ return -EINVAL;
+ }
+
+ if (!(kcmd->cmd_flags & DMU_WRITE) ||
+ !(kcmd->cmd_flags & DMU_READ)) {
+ zpios_print(file, "Invalid flags, minimally DMU_WRITE "
+ "and DMU_READ must be set, %d\n", -EINVAL);
+ return -EINVAL;
+ }
+
+ if ((kcmd->cmd_flags & (DMU_WRITE_ZC | DMU_READ_ZC)) &&
+ (kcmd->cmd_flags & DMU_VERIFY)) {
+ zpios_print(file, "Invalid flags, DMU_*_ZC incompatible "
+ "with DMU_VERIFY, used for performance analysis "
+ "only, %d\n", -EINVAL);
+ return -EINVAL;
+ }
+
+ /* Opaque data on return contains structs of the following form:
+ *
+ * zpios_stat_t stats[];
+ * stats[0] = run_args->stats;
+ * stats[1-N] = threads[N]->stats;
+ * stats[N+1-M] = regions[M]->stats;
+ *
+ * Where N is the number of threads, and M is the number of regions.
+ */
+ size = (sizeof(zpios_stats_t) +
+ (kcmd->cmd_thread_count * sizeof(zpios_stats_t)) +
+ (kcmd->cmd_region_count * sizeof(zpios_stats_t)));
+ if (data_size < size) {
+ zpios_print(file, "Invalid size, command data buffer "
+ "size too small, (%d < %d)\n", data_size, size);
+ return -ENOSPC;
+ }
+
+ rc = zpios_setup_run(&run_args, kcmd, file);
+ if (rc)
+ return rc;
+
+ rc = zpios_threads_run(run_args);
+ zpios_remove_objset(run_args);
+ if (rc)
+ goto cleanup;
+
+ if (stats) {
+ n = 1;
+ m = 1 + kcmd->cmd_thread_count;
+ stats[0] = run_args->stats;
+
+ for (i = 0; i < kcmd->cmd_thread_count; i++)
+ stats[n+i] = run_args->threads[i]->stats;
+
+ for (i = 0; i < kcmd->cmd_region_count; i++)
+ stats[m+i] = run_args->regions[i].stats;
+ }
+
+cleanup:
+ zpios_cleanup_run(run_args);
+
+ (void)zpios_upcall(kcmd->cmd_post, PHASE_POST_RUN, run_args, 0);
+
+ return rc;
+}
+
+static int
+zpios_open(struct inode *inode, struct file *file)
+{
+ unsigned int minor = iminor(inode);
+ zpios_info_t *info;
+
+ if (minor >= ZPIOS_MINORS)
+ return -ENXIO;
+
+ info = (zpios_info_t *)kmem_alloc(sizeof(*info), KM_SLEEP);
+ if (info == NULL)
+ return -ENOMEM;
+
+ spin_lock_init(&info->info_lock);
+ info->info_size = ZPIOS_INFO_BUFFER_SIZE;
+ info->info_buffer = (char *)vmem_alloc(ZPIOS_INFO_BUFFER_SIZE,KM_SLEEP);
+ if (info->info_buffer == NULL) {
+ kmem_free(info, sizeof(*info));
+ return -ENOMEM;
+ }
+
+ info->info_head = info->info_buffer;
+ file->private_data = (void *)info;
+
+ return 0;
+}
+
+static int
+zpios_release(struct inode *inode, struct file *file)
+{
+ unsigned int minor = iminor(inode);
+ zpios_info_t *info = (zpios_info_t *)file->private_data;
+
+ if (minor >= ZPIOS_MINORS)
+ return -ENXIO;
+
+ ASSERT(info);
+ ASSERT(info->info_buffer);
+
+ vmem_free(info->info_buffer, ZPIOS_INFO_BUFFER_SIZE);
+ kmem_free(info, sizeof(*info));
+
+ return 0;
+}
+
+static int
+zpios_buffer_clear(struct file *file, zpios_cfg_t *kcfg, unsigned long arg)
+{
+ zpios_info_t *info = (zpios_info_t *)file->private_data;
+
+ ASSERT(info);
+ ASSERT(info->info_buffer);
+
+ spin_lock(&info->info_lock);
+ memset(info->info_buffer, 0, info->info_size);
+ info->info_head = info->info_buffer;
+ spin_unlock(&info->info_lock);
+
+ return 0;
+}
+
+static int
+zpios_buffer_size(struct file *file, zpios_cfg_t *kcfg, unsigned long arg)
+{
+ zpios_info_t *info = (zpios_info_t *)file->private_data;
+ char *buf;
+ int min, size, rc = 0;
+
+ ASSERT(info);
+ ASSERT(info->info_buffer);
+
+ spin_lock(&info->info_lock);
+ if (kcfg->cfg_arg1 > 0) {
+
+ size = kcfg->cfg_arg1;
+ buf = (char *)vmem_alloc(size, KM_SLEEP);
+ if (buf == NULL) {
+ rc = -ENOMEM;
+ goto out;
+ }
+
+ /* Zero fill and truncate contents when coping buffer */
+ min = ((size < info->info_size) ? size : info->info_size);
+ memset(buf, 0, size);
+ memcpy(buf, info->info_buffer, min);
+ vmem_free(info->info_buffer, info->info_size);
+ info->info_size = size;
+ info->info_buffer = buf;
+ info->info_head = info->info_buffer;
+ }
+
+ kcfg->cfg_rc1 = info->info_size;
+
+ if (copy_to_user((struct zpios_cfg_t __user *)arg, kcfg, sizeof(*kcfg)))
+ rc = -EFAULT;
+out:
+ spin_unlock(&info->info_lock);
+
+ return rc;
+}
+
+static int
+zpios_ioctl_cfg(struct file *file, unsigned long arg)
+{
+ zpios_cfg_t kcfg;
+ int rc = 0;
+
+ if (copy_from_user(&kcfg, (zpios_cfg_t *)arg, sizeof(kcfg)))
+ return -EFAULT;
+
+ if (kcfg.cfg_magic != ZPIOS_CFG_MAGIC) {
+ zpios_print(file, "Bad config magic 0x%x != 0x%x\n",
+ kcfg.cfg_magic, ZPIOS_CFG_MAGIC);
+ return -EINVAL;
+ }
+
+ switch (kcfg.cfg_cmd) {
+ case ZPIOS_CFG_BUFFER_CLEAR:
+ /* cfg_arg1 - Unused
+ * cfg_rc1 - Unused
+ */
+ rc = zpios_buffer_clear(file, &kcfg, arg);
+ break;
+ case ZPIOS_CFG_BUFFER_SIZE:
+ /* cfg_arg1 - 0 - query size; >0 resize
+ * cfg_rc1 - Set to current buffer size
+ */
+ rc = zpios_buffer_size(file, &kcfg, arg);
+ break;
+ default:
+ zpios_print(file, "Bad config command %d\n",
+ kcfg.cfg_cmd);
+ rc = -EINVAL;
+ break;
+ }
+
+ return rc;
+}
+
+static int
+zpios_ioctl_cmd(struct file *file, unsigned long arg)
+{
+ zpios_cmd_t *kcmd;
+ void *data = NULL;
+ int rc = -EINVAL;
+
+ kcmd = kmem_alloc(sizeof(zpios_cmd_t), KM_SLEEP);
+ if (kcmd == NULL) {
+ zpios_print(file, "Unable to kmem_alloc() %ld byte for "
+ "zpios_cmd_t\n", (long int)sizeof(zpios_cmd_t));
+ return -ENOMEM;
+ }
+
+ rc = copy_from_user(kcmd, (zpios_cfg_t *)arg, sizeof(zpios_cmd_t));
+ if (rc) {
+ zpios_print(file, "Unable to copy command structure "
+ "from user to kernel memory, %d\n", rc);
+ goto out_cmd;
+ }
+
+ if (kcmd->cmd_magic != ZPIOS_CMD_MAGIC) {
+ zpios_print(file, "Bad command magic 0x%x != 0x%x\n",
+ kcmd->cmd_magic, ZPIOS_CFG_MAGIC);
+ rc = -EINVAL;
+ goto out_cmd;
+ }
+
+ /* Allocate memory for any opaque data the caller needed to pass on */
+ if (kcmd->cmd_data_size > 0) {
+ data = (void *)vmem_alloc(kcmd->cmd_data_size, KM_SLEEP);
+ if (data == NULL) {
+ zpios_print(file, "Unable to vmem_alloc() %ld "
+ "bytes for data buffer\n",
+ (long)kcmd->cmd_data_size);
+ rc = -ENOMEM;
+ goto out_cmd;
+ }
+
+ rc = copy_from_user(data, (void *)(arg + offsetof(zpios_cmd_t,
+ cmd_data_str)), kcmd->cmd_data_size);
+ if (rc) {
+ zpios_print(file, "Unable to copy data buffer "
+ "from user to kernel memory, %d\n", rc);
+ goto out_data;
+ }
+ }
+
+ rc = zpios_do_one_run(file, kcmd, kcmd->cmd_data_size, data);
+
+ if (data != NULL) {
+ /* If the test failed do not print out the stats */
+ if (rc)
+ goto out_data;
+
+ rc = copy_to_user((void *)(arg + offsetof(zpios_cmd_t,
+ cmd_data_str)), data, kcmd->cmd_data_size);
+ if (rc) {
+ zpios_print(file, "Unable to copy data buffer "
+ "from kernel to user memory, %d\n", rc);
+ rc = -EFAULT;
+ }
+
+out_data:
+ vmem_free(data, kcmd->cmd_data_size);
+ }
+out_cmd:
+ kmem_free(kcmd, sizeof(zpios_cmd_t));
+
+ return rc;
+}
+
+static int
+zpios_ioctl(struct inode *inode, struct file *file,
+ unsigned int cmd, unsigned long arg)
+{
+ unsigned int minor = iminor(inode);
+ int rc = 0;
+
+ /* Ignore tty ioctls */
+ if ((cmd & 0xffffff00) == ((int)'T') << 8)
+ return -ENOTTY;
+
+ if (minor >= ZPIOS_MINORS)
+ return -ENXIO;
+
+ switch (cmd) {
+ case ZPIOS_CFG:
+ rc = zpios_ioctl_cfg(file, arg);
+ break;
+ case ZPIOS_CMD:
+ rc = zpios_ioctl_cmd(file, arg);
+ break;
+ default:
+ zpios_print(file, "Bad ioctl command %d\n", cmd);
+ rc = -EINVAL;
+ break;
+ }
+
+ return rc;
+}
+
+#ifdef CONFIG_COMPAT
+/* Compatibility handler for ioctls from 32-bit ELF binaries */
+static long
+zpios_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return zpios_ioctl(file->f_dentry->d_inode, file, cmd, arg);
+}
+#endif /* CONFIG_COMPAT */
+
+/* I'm not sure why you would want to write in to this buffer from
+ * user space since its principle use is to pass test status info
+ * back to the user space, but I don't see any reason to prevent it.
+ */
+static ssize_t
+zpios_write(struct file *file, const char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ unsigned int minor = iminor(file->f_dentry->d_inode);
+ zpios_info_t *info = (zpios_info_t *)file->private_data;
+ int rc = 0;
+
+ if (minor >= ZPIOS_MINORS)
+ return -ENXIO;
+
+ ASSERT(info);
+ ASSERT(info->info_buffer);
+
+ spin_lock(&info->info_lock);
+
+ /* Write beyond EOF */
+ if (*ppos >= info->info_size) {
+ rc = -EFBIG;
+ goto out;
+ }
+
+ /* Resize count if beyond EOF */
+ if (*ppos + count > info->info_size)
+ count = info->info_size - *ppos;
+
+ if (copy_from_user(info->info_buffer, buf, count)) {
+ rc = -EFAULT;
+ goto out;
+ }
+
+ *ppos += count;
+ rc = count;
+out:
+ spin_unlock(&info->info_lock);
+ return rc;
+}
+
+static ssize_t
+zpios_read(struct file *file, char __user *buf,
+ size_t count, loff_t *ppos)
+{
+ unsigned int minor = iminor(file->f_dentry->d_inode);
+ zpios_info_t *info = (zpios_info_t *)file->private_data;
+ int rc = 0;
+
+ if (minor >= ZPIOS_MINORS)
+ return -ENXIO;
+
+ ASSERT(info);
+ ASSERT(info->info_buffer);
+
+ spin_lock(&info->info_lock);
+
+ /* Read beyond EOF */
+ if (*ppos >= info->info_size)
+ goto out;
+
+ /* Resize count if beyond EOF */
+ if (*ppos + count > info->info_size)
+ count = info->info_size - *ppos;
+
+ if (copy_to_user(buf, info->info_buffer + *ppos, count)) {
+ rc = -EFAULT;
+ goto out;
+ }
+
+ *ppos += count;
+ rc = count;
+out:
+ spin_unlock(&info->info_lock);
+ return rc;
+}
+
+static loff_t zpios_seek(struct file *file, loff_t offset, int origin)
+{
+ unsigned int minor = iminor(file->f_dentry->d_inode);
+ zpios_info_t *info = (zpios_info_t *)file->private_data;
+ int rc = -EINVAL;
+
+ if (minor >= ZPIOS_MINORS)
+ return -ENXIO;
+
+ ASSERT(info);
+ ASSERT(info->info_buffer);
+
+ spin_lock(&info->info_lock);
+
+ switch (origin) {
+ case 0: /* SEEK_SET - No-op just do it */
+ break;
+ case 1: /* SEEK_CUR - Seek from current */
+ offset = file->f_pos + offset;
+ break;
+ case 2: /* SEEK_END - Seek from end */
+ offset = info->info_size + offset;
+ break;
+ }
+
+ if (offset >= 0) {
+ file->f_pos = offset;
+ file->f_version = 0;
+ rc = offset;
+ }
+
+ spin_unlock(&info->info_lock);
+
+ return rc;
+}
+
+static struct cdev zpios_cdev;
+static struct file_operations zpios_fops = {
+ .owner = THIS_MODULE,
+ .open = zpios_open,
+ .release = zpios_release,
+ .ioctl = zpios_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = zpios_compat_ioctl,
+#endif
+ .read = zpios_read,
+ .write = zpios_write,
+ .llseek = zpios_seek,
+};
+
+static int
+zpios_init(void)
+{
+ dev_t dev;
+ int rc;
+
+ dev = MKDEV(ZPIOS_MAJOR, 0);
+ if ((rc = register_chrdev_region(dev, ZPIOS_MINORS, ZPIOS_NAME)))
+ goto error;
+
+ /* Support for registering a character driver */
+ cdev_init(&zpios_cdev, &zpios_fops);
+ zpios_cdev.owner = THIS_MODULE;
+ kobject_set_name(&zpios_cdev.kobj, ZPIOS_NAME);
+ if ((rc = cdev_add(&zpios_cdev, dev, ZPIOS_MINORS))) {
+ printk(KERN_ERR "ZPIOS: Error adding cdev, %d\n", rc);
+ kobject_put(&zpios_cdev.kobj);
+ unregister_chrdev_region(dev, ZPIOS_MINORS);
+ goto error;
+ }
+
+ /* Support for udev make driver info available in sysfs */
+ zpios_class = spl_class_create(THIS_MODULE, ZPIOS_NAME);
+ if (IS_ERR(zpios_class)) {
+ rc = PTR_ERR(zpios_class);
+ printk(KERN_ERR "ZPIOS: Error creating zpios class, %d\n", rc);
+ cdev_del(&zpios_cdev);
+ unregister_chrdev_region(dev, ZPIOS_MINORS);
+ goto error;
+ }
+
+ zpios_device = spl_device_create(zpios_class, NULL,
+ dev, NULL, ZPIOS_NAME);
+ return 0;
+error:
+ printk(KERN_ERR "ZPIOS: Error registering zpios device, %d\n", rc);
+ return rc;
+}
+
+static int
+zpios_fini(void)
+{
+ dev_t dev = MKDEV(ZPIOS_MAJOR, 0);
+
+ spl_device_destroy(zpios_class, zpios_device, dev);
+ spl_class_destroy(zpios_class);
+ cdev_del(&zpios_cdev);
+ unregister_chrdev_region(dev, ZPIOS_MINORS);
+
+ return 0;
+}
+
+spl_module_init(zpios_init);
+spl_module_exit(zpios_fini);
+
+MODULE_AUTHOR("LLNL / Sun");
+MODULE_DESCRIPTION("Kernel PIOS implementation");
+MODULE_LICENSE("GPL");
nobase_pkglibexec_SCRIPTS += zfs.sh
nobase_pkglibexec_SCRIPTS += zpool-create.sh
nobase_pkglibexec_SCRIPTS += zpool-config/*
+nobase_pkglibexec_SCRIPTS += zpios.sh
+nobase_pkglibexec_SCRIPTS += zpios-sanity.sh
+nobase_pkglibexec_SCRIPTS += zpios-survey.sh
+nobase_pkglibexec_SCRIPTS += zpios-test/*
+nobase_pkglibexec_SCRIPTS += zpios-profile/*
EXTRA_DIST = zfs-update.sh $(nobase_pkglibexec_SCRIPTS)
ZFS=${top_srcdir}/scripts/zfs.sh
ZCONFIG=${top_srcdir}/scripts/zconfig.sh
ZTEST=${top_builddir}/cmd/ztest/ztest
+ZPIOS_SANITY=${top_srcdir}/scripts/zpios-sanity.sh
check:
@echo
@echo
@$(ZCONFIG)
@echo
+ @echo -n "===================================="
+ @echo -n " ZPIOS "
+ @echo "===================================="
+ @echo
+ @$(ZFS)
+ @$(ZPIOS_SANITY)
+ @$(ZFS) -u
+ @echo
ETCDIR=${ETCDIR:-/etc}
DEVDIR=${DEVDIR:-/dev/disk/zpool}
ZPOOLDIR=${ZPOOLDIR:-${pkglibexecdir}/zpool-config}
+ZPIOSDIR=${ZPIOSDIR:-${pkglibexecdir}/zpios-test}
+ZPIOSPROFILEDIR=${ZPIOSPROFILEDIR:-${pkglibexecdir}/zpios-profile}
ZDB=${ZDB:-${sbindir}/zdb}
ZFS=${ZFS:-${sbindir}/zfs}
ZPOOL=${ZPOOL:-${sbindir}/zpool}
ZPOOL_ID=${ZPOOL_ID:-${bindir}/zpool_id}
ZTEST=${ZTEST:-${sbindir}/ztest}
+ZPIOS=${ZPIOS:-${sbindir}/zpios}
COMMON_SH=${COMMON_SH:-${pkglibexecdir}/common.sh}
ZFS_SH=${ZFS_SH:-${pkglibexecdir}/zfs.sh}
ZPOOL_CREATE_SH=${ZPOOL_CREATE_SH:-${pkglibexecdir}/zpool-create.sh}
+ZPIOS_SH=${ZPIOS_SH:-${pkglibexecdir}/zpios.sh}
+ZPIOS_SURVEY_SH=${ZPIOS_SURVEY_SH:-${pkglibexecdir}/zpios-survey.sh}
LDMOD=${LDMOD:-/sbin/modprobe}
LSMOD=${LSMOD:-/sbin/lsmod}
--- /dev/null
+#!/bin/bash
+#
+# /proc/diskinfo <after skipping major/minor>
+# Field 1 -- device name
+# Field 2 -- # of reads issued
+# Field 3 -- # of reads merged
+# Field 4 -- # of sectors read
+# Field 5 -- # of milliseconds spent reading
+# Field 6 -- # of writes completed
+# Field 7 -- # of writes merged
+# Field 8 -- # of sectors written
+# Field 9 -- # of milliseconds spent writing
+# Field 10 -- # of I/Os currently in progress
+# Field 11 -- # of milliseconds spent doing I/Os
+# Field 12 -- weighted # of milliseconds spent doing I/Os
+
+PROG=zpios-profile-disk.sh
+
+RUN_PIDS=${0}
+RUN_LOG_DIR=${1}
+RUN_ID=${2}
+
+create_table() {
+ local FIELD=$1
+ local ROW_M=()
+ local ROW_N=()
+ local HEADER=1
+ local STEP=1
+
+ for DISK_FILE in `ls -r --sort=time --time=ctime ${RUN_LOG_DIR}/${RUN_ID}/disk-[0-9]*`; do
+ ROW_M=( ${ROW_N[@]} )
+ ROW_N=( `cat ${DISK_FILE} | grep sd | cut -c11- | cut -f${FIELD} -d' ' | tr "\n" "\t"` )
+
+ if [ $HEADER -eq 1 ]; then
+ echo -n "step, "
+ cat ${DISK_FILE} | grep sd | cut -c11- | cut -f1 -d' ' | tr "\n" ", "
+ echo "total"
+ HEADER=0
+ fi
+
+ if [ ${#ROW_M[@]} -eq 0 ]; then
+ continue
+ fi
+
+ if [ ${#ROW_M[@]} -ne ${#ROW_N[@]} ]; then
+ echo "Badly formatted profile data in ${DISK_FILE}"
+ break
+ fi
+
+ TOTAL=0
+ echo -n "${STEP}, "
+ for (( i=0; i<${#ROW_N[@]}; i++ )); do
+ DELTA=`echo "${ROW_N[${i}]}-${ROW_M[${i}]}" | bc`
+ let TOTAL=${TOTAL}+${DELTA}
+ echo -n "${DELTA}, "
+ done
+ echo "${TOTAL}, "
+
+ let STEP=${STEP}+1
+ done
+}
+
+create_table_mbs() {
+ local FIELD=$1
+ local TIME=$2
+ local ROW_M=()
+ local ROW_N=()
+ local HEADER=1
+ local STEP=1
+
+ for DISK_FILE in `ls -r --sort=time --time=ctime ${RUN_LOG_DIR}/${RUN_ID}/disk-[0-9]*`; do
+ ROW_M=( ${ROW_N[@]} )
+ ROW_N=( `cat ${DISK_FILE} | grep sd | cut -c11- | cut -f${FIELD} -d' ' | tr "\n" "\t"` )
+
+ if [ $HEADER -eq 1 ]; then
+ echo -n "step, "
+ cat ${DISK_FILE} | grep sd | cut -c11- | cut -f1 -d' ' | tr "\n" ", "
+ echo "total"
+ HEADER=0
+ fi
+
+ if [ ${#ROW_M[@]} -eq 0 ]; then
+ continue
+ fi
+
+ if [ ${#ROW_M[@]} -ne ${#ROW_N[@]} ]; then
+ echo "Badly formatted profile data in ${DISK_FILE}"
+ break
+ fi
+
+ TOTAL=0
+ echo -n "${STEP}, "
+ for (( i=0; i<${#ROW_N[@]}; i++ )); do
+ DELTA=`echo "${ROW_N[${i}]}-${ROW_M[${i}]}" | bc`
+ MBS=`echo "scale=2; ((${DELTA}*512)/${TIME})/(1024*1024)" | bc`
+ TOTAL=`echo "scale=2; ${TOTAL}+${MBS}" | bc`
+ echo -n "${MBS}, "
+ done
+ echo "${TOTAL}, "
+
+ let STEP=${STEP}+1
+ done
+}
+
+echo
+echo "Reads issued per device"
+create_table 2
+echo
+echo "Reads merged per device"
+create_table 3
+echo
+echo "Sectors read per device"
+create_table 4
+echo "MB/s per device"
+create_table_mbs 4 3
+
+echo
+echo "Writes issued per device"
+create_table 6
+echo
+echo "Writes merged per device"
+create_table 7
+echo
+echo "Sectors written per device"
+create_table 8
+echo "MB/s per device"
+create_table_mbs 8 3
+
+exit 0
--- /dev/null
+#!/bin/bash
+
+PROG=zpios-profile-pids.sh
+
+RUN_PIDS=${0}
+RUN_LOG_DIR=${1}
+RUN_ID=${2}
+
+ROW_M=()
+ROW_N=()
+ROW_N_SCHED=()
+ROW_N_WAIT=()
+
+HEADER=1
+STEP=1
+
+for PID_FILE in `ls -r --sort=time --time=ctime ${RUN_LOG_DIR}/${RUN_ID}/pids-[0-9]*`; do
+ ROW_M=( ${ROW_N[@]} )
+ ROW_N=( 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 )
+ ROW_N_SCHED=( `cat ${PID_FILE} | cut -f15 -d' ' | tr "\n" "\t"` )
+ ROW_N_WAIT=( `cat ${PID_FILE} | cut -f17 -d' ' | tr "\n" "\t"` )
+ ROW_N_NAMES=( `cat ${PID_FILE} | cut -f2 -d' ' | cut -f2 -d'(' |
+ cut -f1 -d')' | cut -f1 -d'/' | tr "\n" "\t"` )
+
+ for (( i=0; i<${#ROW_N_SCHED[@]}; i++ )); do
+ SUM=`echo "${ROW_N_WAIT[${i}]}+${ROW_N_SCHED[${i}]}" | bc`
+
+ case ${ROW_N_NAMES[${i}]} in
+ zio_taskq) IDX=0;;
+ zio_req_nul) IDX=1;;
+ zio_irq_nul) IDX=2;;
+ zio_req_rd) IDX=3;;
+ zio_irq_rd) IDX=4;;
+ zio_req_wr) IDX=5;;
+ zio_irq_wr) IDX=6;;
+ zio_req_fr) IDX=7;;
+ zio_irq_fr) IDX=8;;
+ zio_req_cm) IDX=9;;
+ zio_irq_cm) IDX=10;;
+ zio_req_ctl) IDX=11;;
+ zio_irq_ctl) IDX=12;;
+ txg_quiesce) IDX=13;;
+ txg_sync) IDX=14;;
+ txg_timelimit) IDX=15;;
+ arc_reclaim) IDX=16;;
+ l2arc_feed) IDX=17;;
+ zpios_io) IDX=18;;
+ *) continue;;
+ esac
+
+ let ROW_N[${IDX}]=${ROW_N[${IDX}]}+${SUM}
+ done
+
+ if [ $HEADER -eq 1 ]; then
+ echo "step, zio_taskq, zio_req_nul, zio_irq_nul, " \
+ "zio_req_rd, zio_irq_rd, zio_req_wr, zio_irq_wr, " \
+ "zio_req_fr, zio_irq_fr, zio_req_cm, zio_irq_cm, " \
+ "zio_req_ctl, zio_irq_ctl, txg_quiesce, txg_sync, " \
+ "txg_timelimit, arc_reclaim, l2arc_feed, zpios_io, " \
+ "idle"
+ HEADER=0
+ fi
+
+ if [ ${#ROW_M[@]} -eq 0 ]; then
+ continue
+ fi
+
+ if [ ${#ROW_M[@]} -ne ${#ROW_N[@]} ]; then
+ echo "Badly formatted profile data in ${PID_FILE}"
+ break
+ fi
+
+ # Original values are in jiffies and we expect HZ to be 1000
+ # on most 2.6 systems thus we divide by 10 to get a percentage.
+ IDLE=1000
+ echo -n "${STEP}, "
+ for (( i=0; i<${#ROW_N[@]}; i++ )); do
+ DELTA=`echo "${ROW_N[${i}]}-${ROW_M[${i}]}" | bc`
+ DELTA_PERCENT=`echo "scale=1; ${DELTA}/10" | bc`
+ let IDLE=${IDLE}-${DELTA}
+ echo -n "${DELTA_PERCENT}, "
+ done
+ ILDE_PERCENT=`echo "scale=1; ${IDLE}/10" | bc`
+ echo "${ILDE_PERCENT}"
+
+ let STEP=${STEP}+1
+done
+
+exit
+
+echo
+echo "Percent of total system time per pid"
+for PID_FILE in `ls -r --sort=time --time=ctime ${RUN_LOG_DIR}/${RUN_ID}/pids-[0-9]*`; do
+ ROW_M=( ${ROW_N[@]} )
+ ROW_N_SCHED=( `cat ${PID_FILE} | cut -f15 -d' ' | tr "\n" "\t"` )
+ ROW_N_WAIT=( `cat ${PID_FILE} | cut -f17 -d' ' | tr "\n" "\t"` )
+
+ for (( i=0; i<${#ROW_N_SCHED[@]}; i++ )); do
+ ROW_N[${i}]=`echo "${ROW_N_WAIT[${i}]}+${ROW_N_SCHED[${i}]}" | bc`
+ done
+
+ if [ $HEADER -eq 1 ]; then
+ echo -n "step, "
+ cat ${PID_FILE} | cut -f2 -d' ' | tr "\n" ", "
+ echo
+ HEADER=0
+ fi
+
+ if [ ${#ROW_M[@]} -eq 0 ]; then
+ continue
+ fi
+
+ if [ ${#ROW_M[@]} -ne ${#ROW_N[@]} ]; then
+ echo "Badly formatted profile data in ${PID_FILE}"
+ break
+ fi
+
+ # Original values are in jiffies and we expect HZ to be 1000
+ # on most 2.6 systems thus we divide by 10 to get a percentage.
+ echo -n "${STEP}, "
+ for (( i=0; i<${#ROW_N[@]}; i++ )); do
+ DELTA=`echo "scale=1; (${ROW_N[${i}]}-${ROW_M[${i}]})/10" | bc`
+ echo -n "${DELTA}, "
+ done
+
+ echo
+ let STEP=${STEP}+1
+done
+
+
+exit 0
--- /dev/null
+#!/bin/bash
+
+PROG=zpios-profile-post.sh
+
+RUN_POST=${0}
+RUN_PHASE=${1}
+RUN_DIR=${2}
+RUN_ID=${3}
+RUN_POOL=${4}
+RUN_CHUNK_SIZE=${5}
+RUN_REGION_SIZE=${6}
+RUN_THRD_COUNT=${7}
+RUN_REGION_COUNT=${8}
+RUN_OFFSET=${9}
+RUN_REGION_NOISE=${10}
+RUN_CHUNK_NOISE=${11}
+RUN_THRD_DELAY=${12}
+RUN_FLAGS=${13}
+RUN_RESULT=${14}
+
+# Summarize system time per process
+zpios_profile_post_pids() {
+ ${PROFILE_PIDS} ${PROFILE_RUN_CR_PIDS_LOG} >${PROFILE_RUN_CR_PIDS_CSV}
+ ${PROFILE_PIDS} ${PROFILE_RUN_WR_PIDS_LOG} >${PROFILE_RUN_WR_PIDS_CSV}
+ ${PROFILE_PIDS} ${PROFILE_RUN_RD_PIDS_LOG} >${PROFILE_RUN_RD_PIDS_CSV}
+ ${PROFILE_PIDS} ${PROFILE_RUN_RM_PIDS_LOG} >${PROFILE_RUN_RM_PIDS_CSV}
+}
+
+zpios_profile_post_disk() {
+ ${PROFILE_DISK} ${PROFILE_RUN_CR_DISK_LOG} >${PROFILE_RUN_CR_DISK_CSV}
+ ${PROFILE_DISK} ${PROFILE_RUN_WR_DISK_LOG} >${PROFILE_RUN_WR_DISK_CSV}
+ ${PROFILE_DISK} ${PROFILE_RUN_RD_DISK_LOG} >${PROFILE_RUN_RD_DISK_CSV}
+ ${PROFILE_DISK} ${PROFILE_RUN_RM_DISK_LOG} >${PROFILE_RUN_RM_DISK_CSV}
+}
+
+# Summarize per device performance
+
+# Stop a user defined profiling script which is gathering additional data
+zpios_profile_post_stop() {
+ local PROFILE_PID=$1
+
+ kill -s SIGHUP `cat ${PROFILE_PID}`
+
+
+ # Sleep waiting for profile script to exit
+ while [ -f ${PROFILE_PID} ]; do
+ sleep 0.01
+ done
+}
+
+zpios_profile_post_proc_stop() {
+ local PROC_DIR=$1
+
+ if [ -f ${PROFILE_ARC_PROC} ]; then
+ cat ${PROFILE_ARC_PROC} >${PROC_DIR}/arcstats.txt
+ fi
+
+ if [ -f ${PROFILE_VDEV_CACHE_PROC} ]; then
+ cat ${PROFILE_VDEV_CACHE_PROC} >${PROC_DIR}/vdev_cache_stats.txt
+ fi
+}
+
+zpios_profile_post_oprofile_stop() {
+ local OPROFILE_LOG=$1
+ local OPROFILE_ARGS="-a -g -l -p ${OPROFILE_KERNEL_DIR},${OPROFILE_SPL_DIR},${OPROFILE_ZFS_DIR}"
+
+ /usr/bin/opcontrol --stop >>${OPROFILE_LOG} 2>&1
+ /usr/bin/opcontrol --dump >>${OPROFILE_LOG} 2>&1
+ /usr/bin/opreport ${OPROFILE_ARGS} >${OPROFILE_LOG} 2>&1
+ /usr/bin/oparchive
+}
+
+zpios_profile_post_create() {
+ zpios_profile_post_oprofile_stop ${PROFILE_RUN_CR_OPROFILE_LOG}
+ zpios_profile_post_proc_stop ${PROFILE_RUN_CR_DIR}
+ zpios_profile_post_stop ${PROFILE_RUN_CR_PID}
+}
+
+zpios_profile_post_write() {
+ zpios_profile_post_oprofile_stop ${PROFILE_RUN_WR_OPROFILE_LOG}
+ zpios_profile_post_proc_stop ${PROFILE_RUN_WR_DIR}
+ zpios_profile_post_stop ${PROFILE_RUN_WR_PID}
+}
+
+zpios_profile_post_read() {
+ zpios_profile_post_oprofile_stop ${PROFILE_RUN_CR_RD_LOG}
+ zpios_profile_post_proc_stop ${PROFILE_RUN_RD_DIR}
+ zpios_profile_post_stop ${PROFILE_RUN_RD_PID}
+}
+
+zpios_profile_post_remove() {
+ zpios_profile_post_oprofile_stop ${PROFILE_RUN_RM_OPROFILE_LOG}
+ zpios_profile_post_proc_stop ${PROFILE_RUN_RM_DIR}
+ zpios_profile_post_stop ${PROFILE_RUN_RM_PID}
+}
+
+# Source global zpios test configuration
+if [ -f ${RUN_DIR}/zpios-config.sh ]; then
+ . ${RUN_DIR}/zpios-config.sh
+fi
+
+# Source global per-run test configuration
+if [ -f ${RUN_DIR}/${RUN_ID}/zpios-config-run.sh ]; then
+ . ${RUN_DIR}/${RUN_ID}/zpios-config-run.sh
+fi
+
+case "${RUN_PHASE}" in
+ post-run)
+ zpios_profile_post_pids
+ zpios_profile_post_disk
+ ;;
+ post-create)
+ zpios_profile_post_create
+ ;;
+ post-write)
+ zpios_profile_post_write
+ ;;
+ post-read)
+ zpios_profile_post_read
+ ;;
+ post-remove)
+ zpios_profile_post_remove
+ ;;
+ *)
+ echo "Usage: ${PROG} {post-run|post-create|post-write|post-read|post-remove}"
+ exit 1
+esac
+
+exit 0
--- /dev/null
+#!/bin/bash
+
+PROG=zpios-profile-pre.sh
+
+PROFILE_RDY=0
+trap "PROFILE_RDY=1" SIGHUP
+
+RUN_PRE=${0}
+RUN_PHASE=${1}
+RUN_DIR=${2}
+RUN_ID=${3}
+RUN_POOL=${4}
+RUN_CHUNK_SIZE=${5}
+RUN_REGION_SIZE=${6}
+RUN_THRD_COUNT=${7}
+RUN_REGION_COUNT=${8}
+RUN_OFFSET=${9}
+RUN_REGION_NOISE=${10}
+RUN_CHUNK_NOISE=${11}
+RUN_THRD_DELAY=${12}
+RUN_FLAGS=${13}
+RUN_RESULT=${14}
+
+zpios_profile_pre_run_cfg() {
+cat > ${RUN_DIR}/${RUN_ID}/zpios-config-run.sh << EOF
+#
+# Zpios Profiling Configuration for Run ${RUN_ID}
+#
+
+PROFILE_RUN_DIR=${RUN_DIR}/${RUN_ID}
+
+PROFILE_RUN_CR_DIR=${RUN_DIR}/${RUN_ID}/create
+PROFILE_RUN_CR_PID=${RUN_DIR}/${RUN_ID}/create/profile.pid
+PROFILE_RUN_CR_OPROFILE_LOG=${RUN_DIR}/${RUN_ID}/create/oprofile.txt
+PROFILE_RUN_CR_PIDS_LOG=${RUN_DIR}/${RUN_ID}/create/pids.txt
+PROFILE_RUN_CR_PIDS_CSV=${RUN_DIR}/${RUN_ID}/create/pids.csv
+PROFILE_RUN_CR_DISK_LOG=${RUN_DIR}/${RUN_ID}/create/disk.txt
+PROFILE_RUN_CR_DISK_CSV=${RUN_DIR}/${RUN_ID}/create/disk.csv
+
+PROFILE_RUN_WR_DIR=${RUN_DIR}/${RUN_ID}/write
+PROFILE_RUN_WR_PID=${RUN_DIR}/${RUN_ID}/write/profile.pid
+PROFILE_RUN_WR_OPROFILE_LOG=${RUN_DIR}/${RUN_ID}/write/oprofile.txt
+PROFILE_RUN_WR_PIDS_LOG=${RUN_DIR}/${RUN_ID}/write/pids.txt
+PROFILE_RUN_WR_PIDS_CSV=${RUN_DIR}/${RUN_ID}/write/pids.csv
+PROFILE_RUN_WR_DISK_LOG=${RUN_DIR}/${RUN_ID}/write/disk.txt
+PROFILE_RUN_WR_DISK_CSV=${RUN_DIR}/${RUN_ID}/write/disk.csv
+
+PROFILE_RUN_RD_DIR=${RUN_DIR}/${RUN_ID}/read
+PROFILE_RUN_RD_PID=${RUN_DIR}/${RUN_ID}/read/profile.pid
+PROFILE_RUN_RD_OPROFILE_LOG=${RUN_DIR}/${RUN_ID}/read/oprofile.txt
+PROFILE_RUN_RD_PIDS_LOG=${RUN_DIR}/${RUN_ID}/read/pids.txt
+PROFILE_RUN_RD_PIDS_CSV=${RUN_DIR}/${RUN_ID}/read/pids.csv
+PROFILE_RUN_RD_DISK_LOG=${RUN_DIR}/${RUN_ID}/read/disk.txt
+PROFILE_RUN_RD_DISK_CSV=${RUN_DIR}/${RUN_ID}/read/disk.csv
+
+PROFILE_RUN_RM_DIR=${RUN_DIR}/${RUN_ID}/remove
+PROFILE_RUN_RM_PID=${RUN_DIR}/${RUN_ID}/remove/profile.pid
+PROFILE_RUN_RM_OPROFILE_LOG=${RUN_DIR}/${RUN_ID}/remove/oprofile.txt
+PROFILE_RUN_RM_PIDS_LOG=${RUN_DIR}/${RUN_ID}/remove/pids.txt
+PROFILE_RUN_RM_PIDS_CSV=${RUN_DIR}/${RUN_ID}/remove/pids.csv
+PROFILE_RUN_RM_DISK_LOG=${RUN_DIR}/${RUN_ID}/remove/disk.txt
+PROFILE_RUN_RM_DISK_CSV=${RUN_DIR}/${RUN_ID}/remove/disk.csv
+
+# PROFILE_PIDS_LOG=${RUN_DIR}/${RUN_ID}/pids-summary.csv
+# PROFILE_DISK_LOG=${RUN_DIR}/${RUN_ID}/disk-summary.csv
+EOF
+}
+
+zpios_profile_pre_run_args() {
+cat > ${RUN_DIR}/${RUN_ID}/zpios-args.txt << EOF
+#
+# Zpios Arguments for Run ${RUN_ID}
+#
+
+DIR=${RUN_DIR}
+ID=${RUN_ID}
+POOL=${RUN_POOL}
+CHUNK_SIZE=${RUN_CHUNK_SIZE}
+REGION_SIZE=${RUN_REGION_SIZE}
+THRD_COUNT=${RUN_THRD_COUNT}
+REGION_COUNT=${RUN_REGION_COUNT}
+OFFSET=${RUN_OFFSET}
+REGION_NOISE=${RUN_REGION_NOISE}
+CHUNK_NOISE=${RUN_CHUNK_NOISE}
+THRD_DELAY=${RUN_THRD_DELAY}
+FLAGS=${RUN_FLAGS}
+RESULT=${RUN_RESULT}
+EOF
+}
+
+# Spawn a user defined profiling script to gather additional data
+zpios_profile_pre_start() {
+ local PROFILE_PID=$1
+
+ ${PROFILE_USER} ${RUN_PHASE} ${RUN_DIR} ${RUN_ID} &
+ echo "$!" >${PROFILE_PID}
+
+ # Sleep waiting for profile script to be ready, it will
+ # signal us via SIGHUP when it is ready to start profiling.
+ while [ ${PROFILE_RDY} -eq 0 ]; do
+ sleep 0.01
+ done
+}
+
+zpios_profile_post_proc_start() {
+
+ if [ -f ${PROFILE_ARC_PROC} ]; then
+ echo 0 >${PROFILE_ARC_PROC}
+ fi
+
+ if [ -f ${PROFILE_VDEV_CACHE_PROC} ]; then
+ echo 0 >${PROFILE_VDEV_CACHE_PROC}
+ fi
+}
+
+zpios_profile_pre_oprofile_start() {
+ local OPROFILE_LOG=$1
+
+ /usr/bin/opcontrol --reset >>${OPROFILE_LOG} 2>&1
+ /usr/bin/opcontrol --start >>${OPROFILE_LOG} 2>&1
+}
+
+zpios_profile_pre_create() {
+ mkdir ${PROFILE_RUN_CR_DIR}
+ zpios_profile_pre_start ${PROFILE_RUN_CR_PID}
+ zpios_profile_post_proc_start
+ zpios_profile_pre_oprofile_start ${PROFILE_RUN_CR_OPROFILE_LOG}
+}
+
+zpios_profile_pre_write() {
+ mkdir ${PROFILE_RUN_WR_DIR}
+ zpios_profile_pre_start ${PROFILE_RUN_WR_PID}
+ zpios_profile_post_proc_start
+ zpios_profile_pre_oprofile_start ${PROFILE_RUN_WR_OPROFILE_LOG}
+}
+
+zpios_profile_pre_read() {
+ mkdir ${PROFILE_RUN_RD_DIR}
+ zpios_profile_pre_start ${PROFILE_RUN_RD_PID}
+ zpios_profile_post_proc_start
+ zpios_profile_pre_oprofile_start ${PROFILE_RUN_CR_RD_LOG}
+}
+
+zpios_profile_pre_remove() {
+ mkdir ${PROFILE_RUN_RM_DIR}
+ zpios_profile_pre_start ${PROFILE_RUN_RM_PID}
+ zpios_profile_post_proc_start
+ zpios_profile_pre_oprofile_start ${PROFILE_RUN_RM_OPROFILE_LOG}
+}
+
+# Source global zpios test configuration
+if [ -f ${RUN_DIR}/zpios-config.sh ]; then
+ . ${RUN_DIR}/zpios-config.sh
+fi
+
+# Source global per-run test configuration
+if [ -f ${RUN_DIR}/${RUN_ID}/zpios-config-run.sh ]; then
+ . ${RUN_DIR}/${RUN_ID}/zpios-config-run.sh
+fi
+
+case "${RUN_PHASE}" in
+ pre-run)
+ mkdir -p ${RUN_DIR}/${RUN_ID}/
+ zpios_profile_pre_run_cfg
+ zpios_profile_pre_run_args
+ ;;
+ pre-create)
+ zpios_profile_pre_create
+ ;;
+ pre-write)
+ zpios_profile_pre_write
+ ;;
+ pre-read)
+ zpios_profile_pre_read
+ ;;
+ pre-remove)
+ zpios_profile_pre_remove
+ ;;
+ *)
+ echo "Usage: ${PROG} {pre-run|pre-create|pre-write|pre-read|pre-remove}"
+ exit 1
+esac
+
+exit 0
--- /dev/null
+#!/bin/bash
+
+
+PROG=zpios-profile.sh
+
+trap "RUN_DONE=1" SIGHUP
+
+RUN_PHASE=${1}
+RUN_LOG_DIR=${2}
+RUN_ID=${3}
+RUN_DONE=0
+
+POLL_INTERVAL=2.99
+
+# Log these pids, the exact pid numbers will vary from system to system
+# so I harvest pid for all the following type of processes from /proc/<pid>/
+#
+# zio_taskq/#
+# spa_zio_issue/#
+# spa_zio_intr/#
+# txg_quiesce_thr
+# txg_sync_thread
+# txg_timelimit_t
+# arc_reclaim_thr
+# l2arc_feed_thre
+# zpios_io/#
+
+ZIO_TASKQ_PIDS=()
+ZIO_REQ_NUL_PIDS=()
+ZIO_IRQ_NUL_PIDS=()
+ZIO_REQ_RD_PIDS=()
+ZIO_IRQ_RD_PIDS=()
+ZIO_REQ_WR_PIDS=()
+ZIO_IRQ_WR_PIDS=()
+ZIO_REQ_FR_PIDS=()
+ZIO_IRQ_FR_PIDS=()
+ZIO_REQ_CM_PIDS=()
+ZIO_IRQ_CM_PIDS=()
+ZIO_REQ_CTL_PIDS=()
+ZIO_IRQ_CTL_PIDS=()
+
+TXG_QUIESCE_PIDS=()
+TXG_SYNC_PIDS=()
+TXG_TIMELIMIT_PIDS=()
+
+ARC_RECLAIM_PIDS=()
+L2ARC_FEED_PIDS=()
+
+ZPIOS_IO_PIDS=()
+
+show_pids() {
+ echo "* zio_taskq: { ${ZIO_TASKQ_PIDS[@]} } = ${#ZIO_TASKQ_PIDS[@]}"
+ echo "* zio_req_nul: { ${ZIO_REQ_NUL_PIDS[@]} } = ${#ZIO_REQ_NUL_PIDS[@]}"
+ echo "* zio_irq_nul: { ${ZIO_IRQ_NUL_PIDS[@]} } = ${#ZIO_IRQ_NUL_PIDS[@]}"
+ echo "* zio_req_rd: { ${ZIO_REQ_RD_PIDS[@]} } = ${#ZIO_REQ_RD_PIDS[@]}"
+ echo "* zio_irq_rd: { ${ZIO_IRQ_RD_PIDS[@]} } = ${#ZIO_IRQ_RD_PIDS[@]}"
+ echo "* zio_req_wr: { ${ZIO_REQ_WR_PIDS[@]} } = ${#ZIO_REQ_WR_PIDS[@]}"
+ echo "* zio_irq_wr: { ${ZIO_IRQ_WR_PIDS[@]} } = ${#ZIO_IRQ_WR_PIDS[@]}"
+ echo "* zio_req_fr: { ${ZIO_REQ_FR_PIDS[@]} } = ${#ZIO_REQ_FR_PIDS[@]}"
+ echo "* zio_irq_fr: { ${ZIO_IRQ_FR_PIDS[@]} } = ${#ZIO_IRQ_FR_PIDS[@]}"
+ echo "* zio_req_cm: { ${ZIO_REQ_CM_PIDS[@]} } = ${#ZIO_REQ_CM_PIDS[@]}"
+ echo "* zio_irq_cm: { ${ZIO_IRQ_CM_PIDS[@]} } = ${#ZIO_IRQ_CM_PIDS[@]}"
+ echo "* zio_req_ctl: { ${ZIO_REQ_CTL_PIDS[@]} } = ${#ZIO_REQ_CTL_PIDS[@]}"
+ echo "* zio_irq_ctl: { ${ZIO_IRQ_CTL_PIDS[@]} } = ${#ZIO_IRQ_CTL_PIDS[@]}"
+ echo "* txg_quiesce: { ${TXG_QUIESCE_PIDS[@]} } = ${#TXG_QUIESCE_PIDS[@]}"
+ echo "* txg_sync: { ${TXG_SYNC_PIDS[@]} } = ${#TXG_SYNC_PIDS[@]}"
+ echo "* txg_timelimit: { ${TXG_TIMELIMIT_PIDS[@]} } = ${#TXG_TIMELIMIT_PIDS[@]}"
+ echo "* arc_reclaim: { ${ARC_RECLAIM_PIDS[@]} } = ${#ARC_RECLAIM_PIDS[@]}"
+ echo "* l2arc_feed: { ${L2ARC_FEED_PIDS[@]} } = ${#L2ARC_FEED_PIDS[@]}"
+ echo "* zpios_io: { ${ZPIOS_IO_PIDS[@]} } = ${#ZPIOS_IO_PIDS[@]}"
+}
+
+check_pid() {
+ local PID=$1
+ local NAME=$2
+ local TYPE=$3
+ local PIDS=( "$4" )
+ local NAME_STRING=`echo ${NAME} | cut -f1 -d'/'`
+ local NAME_NUMBER=`echo ${NAME} | cut -f2 -d'/'`
+
+ if [ "${NAME_STRING}" == "${TYPE}" ]; then
+ if [ -n "${NAME_NUMBER}" ]; then
+ PIDS[${NAME_NUMBER}]=${PID}
+ else
+ PIDS[${#PIDS[@]}]=${PID}
+
+ fi
+ fi
+
+ echo "${PIDS[@]}"
+}
+
+# NOTE: This whole process is crazy slow but it will do for now
+aquire_pids() {
+ echo "--- Aquiring ZFS pids ---"
+
+ for PID in `ls /proc/ | grep [0-9] | sort -n -u`; do
+ if [ ! -e /proc/${PID}/status ]; then
+ continue
+ fi
+
+ NAME=`cat /proc/${PID}/status | head -n1 | cut -f2`
+
+ ZIO_TASKQ_PIDS=( `check_pid ${PID} ${NAME} "zio_taskq" \
+ "$(echo "${ZIO_TASKQ_PIDS[@]}")"` )
+
+ ZIO_REQ_NUL_PIDS=( `check_pid ${PID} ${NAME} "zio_req_nul" \
+ "$(echo "${ZIO_REQ_NUL_PIDS[@]}")"` )
+
+ ZIO_IRQ_NUL_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_nul" \
+ "$(echo "${ZIO_IRQ_NUL_PIDS[@]}")"` )
+
+ ZIO_REQ_RD_PIDS=( `check_pid ${PID} ${NAME} "zio_req_rd" \
+ "$(echo "${ZIO_REQ_RD_PIDS[@]}")"` )
+
+ ZIO_IRQ_RD_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_rd" \
+ "$(echo "${ZIO_IRQ_RD_PIDS[@]}")"` )
+
+ ZIO_REQ_WR_PIDS=( `check_pid ${PID} ${NAME} "zio_req_wr" \
+ "$(echo "${ZIO_REQ_WR_PIDS[@]}")"` )
+
+ ZIO_IRQ_WR_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_wr" \
+ "$(echo "${ZIO_IRQ_WR_PIDS[@]}")"` )
+
+ ZIO_REQ_FR_PIDS=( `check_pid ${PID} ${NAME} "zio_req_fr" \
+ "$(echo "${ZIO_REQ_FR_PIDS[@]}")"` )
+
+ ZIO_IRQ_FR_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_fr" \
+ "$(echo "${ZIO_IRQ_FR_PIDS[@]}")"` )
+
+ ZIO_REQ_CM_PIDS=( `check_pid ${PID} ${NAME} "zio_req_cm" \
+ "$(echo "${ZIO_REQ_CM_PIDS[@]}")"` )
+
+ ZIO_IRQ_CM_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_cm" \
+ "$(echo "${ZIO_IRQ_CM_PIDS[@]}")"` )
+
+ ZIO_REQ_CTL_PIDS=( `check_pid ${PID} ${NAME} "zio_req_ctl" \
+ "$(echo "${ZIO_REQ_CTL_PIDS[@]}")"` )
+
+ ZIO_IRQ_CTL_PIDS=( `check_pid ${PID} ${NAME} "zio_irq_ctl" \
+ "$(echo "${ZIO_IRQ_CTL_PIDS[@]}")"` )
+
+ TXG_QUIESCE_PIDS=( `check_pid ${PID} ${NAME} "txg_quiesce" \
+ "$(echo "${TXG_QUIESCE_PIDS[@]}")"` )
+
+ TXG_SYNC_PIDS=( `check_pid ${PID} ${NAME} "txg_sync" \
+ "$(echo "${TXG_SYNC_PIDS[@]}")"` )
+
+ TXG_TIMELIMIT_PIDS=( `check_pid ${PID} ${NAME} "txg_timelimit" \
+ "$(echo "${TXG_TIMELIMIT_PIDS[@]}")"` )
+
+ ARC_RECLAIM_PIDS=( `check_pid ${PID} ${NAME} "arc_reclaim" \
+ "$(echo "${ARC_RECLAIM_PIDS[@]}")"` )
+
+ L2ARC_FEED_PIDS=( `check_pid ${PID} ${NAME} "l2arc_feed" \
+ "$(echo "${L2ARC_FEED_PIDS[@]}")"` )
+ done
+
+ # Wait for zpios_io threads to start
+ kill -s SIGHUP ${PPID}
+ echo "* Waiting for zpios_io threads to start"
+ while [ ${RUN_DONE} -eq 0 ]; do
+ ZPIOS_IO_PIDS=( `ps ax | grep zpios_io | grep -v grep | \
+ sed 's/^ *//g' | cut -f1 -d' '` )
+ if [ ${#ZPIOS_IO_PIDS[@]} -gt 0 ]; then
+ break;
+ fi
+ sleep 0.1
+ done
+
+ echo "`show_pids`" >${RUN_LOG_DIR}/${RUN_ID}/pids.txt
+}
+
+log_pids() {
+ echo "--- Logging ZFS profile to ${RUN_LOG_DIR}/${RUN_ID}/ ---"
+ ALL_PIDS=( ${ZIO_TASKQ_PIDS[@]} \
+ ${ZIO_REQ_NUL_PIDS[@]} \
+ ${ZIO_IRQ_NUL_PIDS[@]} \
+ ${ZIO_REQ_RD_PID[@]} \
+ ${ZIO_IRQ_RD_PIDS[@]} \
+ ${ZIO_REQ_WR_PIDS[@]} \
+ ${ZIO_IRQ_WR_PIDS[@]} \
+ ${ZIO_REQ_FR_PIDS[@]} \
+ ${ZIO_IRQ_FR_PIDS[@]} \
+ ${ZIO_REQ_CM_PIDS[@]} \
+ ${ZIO_IRQ_CM_PIDS[@]} \
+ ${ZIO_REQ_CTL_PIDS[@]} \
+ ${ZIO_IRQ_CTL_PIDS[@]} \
+ ${TXG_QUIESCE_PIDS[@]} \
+ ${TXG_SYNC_PIDS[@]} \
+ ${TXG_TIMELIMIT_PIDS[@]} \
+ ${ARC_RECLAIM_PIDS[@]} \
+ ${L2ARC_FEED_PIDS[@]} \
+ ${ZPIOS_IO_PIDS[@]} )
+
+ while [ ${RUN_DONE} -eq 0 ]; do
+ NOW=`date +%s.%N`
+ LOG_PIDS="${RUN_LOG_DIR}/${RUN_ID}/pids-${NOW}"
+ LOG_DISK="${RUN_LOG_DIR}/${RUN_ID}/disk-${NOW}"
+
+ for PID in "${ALL_PIDS[@]}"; do
+ if [ -z ${PID} ]; then
+ continue;
+ fi
+
+ if [ -e /proc/${PID}/stat ]; then
+ cat /proc/${PID}/stat | head -n1 >>${LOG_PIDS}
+ else
+ echo "<${PID} exited>" >>${LOG_PIDS}
+ fi
+ done
+
+ cat /proc/diskstats >${LOG_DISK}
+
+ NOW2=`date +%s.%N`
+ DELTA=`echo "${POLL_INTERVAL}-(${NOW2}-${NOW})" | bc`
+ sleep ${DELTA}
+ done
+}
+
+aquire_pids
+log_pids
+
+# rm ${PROFILE_PID}
+
+exit 0
--- /dev/null
+#!/bin/bash
+#
+# ZFS/ZPOOL configuration test script.
+
+basedir="$(dirname $0)"
+
+SCRIPT_COMMON=common.sh
+if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then
+. "${basedir}/${SCRIPT_COMMON}"
+else
+echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
+fi
+
+PROG=zpios-sanity.sh
+HEADER=
+
+usage() {
+cat << EOF
+USAGE:
+$0 [hvxfc]
+
+DESCRIPTION:
+ ZPIOS sanity tests
+
+OPTIONS:
+ -h Show this message
+ -v Verbose
+ -x Destructive hd/sd/md/dm/ram tests
+ -f Don't prompt due to -x
+ -c Cleanup lo+file devices at start
+
+EOF
+}
+
+while getopts 'hvxfc?' OPTION; do
+ case $OPTION in
+ h)
+ usage
+ exit 1
+ ;;
+ v)
+ VERBOSE=1
+ ;;
+ x)
+ DANGEROUS=1
+ ;;
+ f)
+ FORCE=1
+ ;;
+ c)
+ CLEANUP=1
+ ;;
+ ?)
+ usage
+ exit
+ ;;
+ esac
+done
+
+if [ $(id -u) != 0 ]; then
+ die "Must run as root"
+fi
+
+# Perform pre-cleanup is requested
+if [ ${CLEANUP} ]; then
+ cleanup_loop_devices
+ rm -f /tmp/zpool.cache.*
+fi
+
+zpios_test() {
+ CONFIG=$1
+ TEST=$2
+ LOG=`mktemp`
+
+ ${ZPIOS_SH} -f -c ${CONFIG} -t ${TEST} &>${LOG}
+ if [ $? -ne 0 ]; then
+ if [ ${VERBOSE} ]; then
+ printf "FAIL: %-13s\n" ${CONFIG}
+ cat ${LOG}
+ else
+ if [ ! ${HEADER} ]; then
+ head -2 ${LOG}
+ HEADER=1
+ fi
+
+ printf "FAIL: %-13s" ${CONFIG}
+ tail -1 ${LOG}
+ fi
+ else
+ if [ ${VERBOSE} ]; then
+ cat ${LOG}
+ else
+ if [ ! ${HEADER} ]; then
+ head -2 ${LOG}
+ HEADER=1
+ fi
+
+ tail -1 ${LOG}
+ fi
+ fi
+
+ rm -f ${LOG}
+}
+
+if [ ${DANGEROUS} ] && [ ! ${FORCE} ]; then
+ cat << EOF
+The -x option was passed which will result in UNRECOVERABLE DATA LOSS
+on on the following block devices:
+
+ /dev/sd[abcd]
+ /dev/hda
+ /dev/ram0
+ /dev/md0
+ /dev/dm-0
+
+To continue please confirm by entering YES:
+EOF
+ read CONFIRM
+ if [ ${CONFIRM} != "YES" ] && [ ${CONFIRM} != "yes" ]; then
+ exit 0;
+ fi
+fi
+
+#
+# These configurations are all safe and pose no risk to any data on
+# the system which runs them. They will confine all their IO to a
+# file in /tmp or a loopback device configured to use a file in /tmp.
+#
+SAFE_CONFIGS=( \
+ file-raid0 file-raid10 file-raidz file-raidz2 \
+ lo-raid0 lo-raid10 lo-raidz lo-raidz2 \
+)
+
+#
+# These configurations are down right dangerous. They will attempt
+# to use various real block devices on your system which may contain
+# data you car about. You are STRONGLY advised not to run this unless
+# you are certain there is no data on the system you care about.
+#
+DANGEROUS_CONFIGS=( \
+ hda-raid0 \
+ sda-raid0 \
+ ram0-raid0 \
+ md0-raid10 md0-raid5 \
+ dm0-raid0 \
+)
+
+for CONFIG in ${SAFE_CONFIGS[*]}; do
+ zpios_test $CONFIG tiny
+done
+
+if [ ${DANGEROUS} ]; then
+ for CONFIG in ${DANGEROUS_CONFIGS[*]}; do
+ zpios_test $CONFIG tiny
+ done
+fi
+
+exit 0
--- /dev/null
+#!/bin/bash
+#
+# Wrapper script for easily running a survey of zpios based tests
+#
+
+basedir="$(dirname $0)"
+
+SCRIPT_COMMON=common.sh
+if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then
+. "${basedir}/${SCRIPT_COMMON}"
+else
+echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
+fi
+
+PROG=zpios-survey.sh
+
+usage() {
+cat << EOF
+USAGE:
+$0 [hvp] <-c config> <-t test>
+
+DESCRIPTION:
+ Helper script for easy zpios survey benchmarking.
+
+OPTIONS:
+ -h Show this message
+ -v Verbose
+ -p Enable profiling
+ -c Zpool configuration
+ -t Zpios test
+ -l Zpios survey log
+
+EOF
+}
+
+print_header() {
+tee -a ${ZPIOS_SURVEY_LOG} << EOF
+
+================================================================
+Test: $1
+EOF
+}
+
+# Baseline performance for an out of the box config with no manual tuning.
+# Ideally, we want everything to be automatically tuned for your system and
+# for this to perform reasonably well.
+zpios_survey_base() {
+ TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+baseline"
+ print_header ${TEST_NAME}
+
+ ${ZFS_SH} ${VERBOSE_FLAG} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZFS_SH} -u ${VERBOSE_FLAG} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+}
+
+# Disable ZFS's prefetching. For some reason still not clear to me
+# current prefetching policy is quite bad for a random workload.
+# Allowing the algorithm to detect a random workload and not do
+# anything may be the way to address this issue.
+zpios_survey_prefetch() {
+ TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+prefetch"
+ print_header ${TEST_NAME}
+
+ ${ZFS_SH} ${VERBOSE_FLAG} \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} \
+ -o "--noprefetch" | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZFS_SH} -u ${VERBOSE_FLAG} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+}
+
+# Simulating a zerocopy IO path should improve performance by freeing up
+# lots of CPU which is wasted move data between buffers.
+zpios_survey_zerocopy() {
+ TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+zerocopy"
+ print_header ${TEST_NAME}
+
+ ${ZFS_SH} ${VERBOSE_FLAG} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} \
+ -o "--zerocopy" | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZFS_SH} -u ${VERBOSE_FLAG} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+}
+
+# Disabling checksumming should show some (if small) improvement
+# simply due to freeing up a modest amount of CPU.
+zpios_survey_checksum() {
+ TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+checksum"
+ print_header ${TEST_NAME}
+
+ ${ZFS_SH} ${VERBOSE_FLAG} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} \
+ -s "set checksum=off" | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZFS_SH} -u ${VERBOSE_FLAG} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+}
+
+# Increasing the pending IO depth also seems to improve things likely
+# at the expense of latency. This should be explored more because I'm
+# seeing a much bigger impact there that I would have expected. There
+# may be some low hanging fruit to be found here.
+zpios_survey_pending() {
+ TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+pending"
+ print_header ${TEST_NAME}
+
+ ${ZFS_SH} ${VERBOSE_FLAG} \
+ zfs="zfs_vdev_max_pending=1024" | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZFS_SH} -u ${VERBOSE_FLAG} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+}
+
+# To avoid memory fragmentation issues our slab implementation can be
+# based on a virtual address space. Interestingly, we take a pretty
+# substantial performance penalty for this somewhere in the low level
+# IO drivers. If we back the slab with kmem pages we see far better
+# read performance numbers at the cost of memory fragmention and general
+# system instability due to large allocations. This may be because of
+# an optimization in the low level drivers due to the contigeous kmem
+# based memory. This needs to be explained. The good news here is that
+# with zerocopy interfaces added at the DMU layer we could gaurentee
+# kmem based memory for a pool of pages.
+#
+# 0x100 = KMC_KMEM - Force kmem_* based slab
+# 0x200 = KMC_VMEM - Force vmem_* based slab
+zpios_survey_kmem() {
+ TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+kmem"
+ print_header ${TEST_NAME}
+
+ ${ZFS_SH} ${VERBOSE_FLAG} \
+ zfs="zio_bulk_flags=0x100" | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZFS_SH} -u ${VERBOSE_FLAG} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+}
+
+# Apply all possible turning concurrently to get a best case number
+zpios_survey_all() {
+ TEST_NAME="${ZPOOL_CONFIG}+${ZPIOS_TEST}+all"
+ print_header ${TEST_NAME}
+
+ ${ZFS_SH} ${VERBOSE_FLAG} \
+ zfs="zfs_vdev_max_pending=1024" \
+ zfs="zio_bulk_flags=0x100" | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZPIOS_SH} ${VERBOSE_FLAG} -c ${ZPOOL_CONFIG} -t ${ZPIOS_TEST} \
+ -o "--noprefetch --zerocopy" \
+ -s "set checksum=off" | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+ ${ZFS_SH} -u ${VERBOSE_FLAG} | \
+ tee -a ${ZPIOS_SURVEY_LOG}
+}
+
+
+PROFILE=
+ZPOOL_NAME=zpios-survey
+ZPOOL_CONFIG=zpool-config.sh
+ZPIOS_TEST=zpios-test.sh
+ZPIOS_SURVEY_LOG=/dev/null
+
+while getopts 'hvpc:t:l:' OPTION; do
+ case $OPTION in
+ h)
+ usage
+ exit 1
+ ;;
+ v)
+ VERBOSE=1
+ VERBOSE_FLAG="-v"
+ ;;
+ p)
+ PROFILE=1
+ PROFILE_FLAG="-p"
+ ;;
+ c)
+ ZPOOL_CONFIG=${OPTARG}
+ ;;
+ t)
+ ZPIOS_TEST=${OPTARG}
+ ;;
+ l)
+ ZPIOS_SURVEY_LOG=${OPTARG}
+ ;;
+ ?)
+ usage
+ exit
+ ;;
+ esac
+done
+
+if [ $(id -u) != 0 ]; then
+ die "Must run as root"
+fi
+
+zpios_survey_base
+zpios_survey_prefetch
+zpios_survey_zerocopy
+zpios_survey_checksum
+zpios_survey_pending
+zpios_survey_kmem
+zpios_survey_all
+
+exit 0
--- /dev/null
+#!/bin/bash
+#
+# Usage: zpios
+# --threadcount -t =values
+# --threadcount_low -l =value
+# --threadcount_high -h =value
+# --threadcount_incr -e =value
+# --regioncount -n =values
+# --regioncount_low -i =value
+# --regioncount_high -j =value
+# --regioncount_incr -k =value
+# --offset -o =values
+# --offset_low -m =value
+# --offset_high -q =value
+# --offset_incr -r =value
+# --chunksize -c =values
+# --chunksize_low -a =value
+# --chunksize_high -b =value
+# --chunksize_incr -g =value
+# --regionsize -s =values
+# --regionsize_low -A =value
+# --regionsize_high -B =value
+# --regionsize_incr -C =value
+# --load -L =dmuio|ssf|fpp
+# --pool -p =pool name
+# --name -M =test name
+# --cleanup -x
+# --prerun -P =pre-command
+# --postrun -R =post-command
+# --log -G =log directory
+# --regionnoise -I =shift
+# --chunknoise -N =bytes
+# --threaddelay -T =jiffies
+# --verify -V
+# --zerocopy -z
+# --nowait -O
+# --human-readable -H
+# --verbose -v =increase verbosity
+# --help -? =this help
+
+ZPIOS_CMD="${ZPIOS} \
+ --load=dmuio \
+ --pool=${ZPOOL_NAME} \
+ --name=${ZPOOL_CONFIG} \
+ --threadcount=16 \
+ --regioncount=8192 \
+ --regionsize=4M \
+ --chunksize=1M \
+ --offset=4M \
+ --cleanup \
+ --human-readable \
+ ${ZPIOS_OPTIONS}"
+
+zpios_start() {
+ if [ ${VERBOSE} ]; then
+ ZPIOS_CMD="${ZPIOS_CMD} --verbose"
+ echo ${ZPIOS_CMD}
+ fi
+
+ ${ZPIOS_CMD} || exit 1
+}
+
+zpios_stop() {
+ [ ${VERBOSE} ] && echo
+}
--- /dev/null
+#!/bin/bash
+#
+# Usage: zpios
+# --threadcount -t =values
+# --threadcount_low -l =value
+# --threadcount_high -h =value
+# --threadcount_incr -e =value
+# --regioncount -n =values
+# --regioncount_low -i =value
+# --regioncount_high -j =value
+# --regioncount_incr -k =value
+# --offset -o =values
+# --offset_low -m =value
+# --offset_high -q =value
+# --offset_incr -r =value
+# --chunksize -c =values
+# --chunksize_low -a =value
+# --chunksize_high -b =value
+# --chunksize_incr -g =value
+# --regionsize -s =values
+# --regionsize_low -A =value
+# --regionsize_high -B =value
+# --regionsize_incr -C =value
+# --load -L =dmuio|ssf|fpp
+# --pool -p =pool name
+# --name -M =test name
+# --cleanup -x
+# --prerun -P =pre-command
+# --postrun -R =post-command
+# --log -G =log directory
+# --regionnoise -I =shift
+# --chunknoise -N =bytes
+# --threaddelay -T =jiffies
+# --verify -V
+# --zerocopy -z
+# --nowait -O
+# --human-readable -H
+# --verbose -v =increase verbosity
+# --help -? =this help
+
+
+ZPIOS_CMD="${ZPIOS} \
+ --load=dmuio \
+ --pool=${ZPOOL_NAME} \
+ --name=${ZPOOL_CONFIG} \
+ --threadcount=1 \
+ --regioncount=16 \
+ --regionsize=4M \
+ --chunksize=1M \
+ --offset=4M \
+ --cleanup \
+ --human-readable \
+ ${ZPIOS_OPTIONS}"
+
+zpios_start() {
+ if [ ${VERBOSE} ]; then
+ ZPIOS_CMD="${ZPIOS_CMD} --verbose"
+ echo ${ZPIOS_CMD}
+ fi
+
+ ${ZPIOS_CMD} || exit 1
+}
+
+zpios_stop() {
+ [ ${VERBOSE} ] && echo
+}
--- /dev/null
+#!/bin/bash
+#
+# Usage: zpios
+# --threadcount -t =values
+# --threadcount_low -l =value
+# --threadcount_high -h =value
+# --threadcount_incr -e =value
+# --regioncount -n =values
+# --regioncount_low -i =value
+# --regioncount_high -j =value
+# --regioncount_incr -k =value
+# --offset -o =values
+# --offset_low -m =value
+# --offset_high -q =value
+# --offset_incr -r =value
+# --chunksize -c =values
+# --chunksize_low -a =value
+# --chunksize_high -b =value
+# --chunksize_incr -g =value
+# --regionsize -s =values
+# --regionsize_low -A =value
+# --regionsize_high -B =value
+# --regionsize_incr -C =value
+# --load -L =dmuio|ssf|fpp
+# --pool -p =pool name
+# --name -M =test name
+# --cleanup -x
+# --prerun -P =pre-command
+# --postrun -R =post-command
+# --log -G =log directory
+# --regionnoise -I =shift
+# --chunknoise -N =bytes
+# --threaddelay -T =jiffies
+# --verify -V
+# --zerocopy -z
+# --nowait -O
+# --human-readable -H
+# --verbose -v =increase verbosity
+# --help -? =this help
+
+ZPIOS_CMD="${ZPIOS} \
+ --load=dmuio \
+ --pool=${ZPOOL_NAME} \
+ --name=${ZPOOL_CONFIG} \
+ --threadcount=1,2,4,8,16,32,64,128,256 \
+ --regioncount=65536 \
+ --regionsize=4M \
+ --chunksize=1M \
+ --offset=4M \
+ --cleanup \
+ --human-readable \
+ ${ZPIOS_OPTIONS}"
+
+zpios_start() {
+ if [ ${VERBOSE} ]; then
+ ZPIOS_CMD="${ZPIOS_CMD} --verbose"
+ echo ${ZPIOS_CMD}
+ fi
+
+ ${ZPIOS_CMD} || exit 1
+}
+
+zpios_stop() {
+ [ ${VERBOSE} ] && echo
+}
--- /dev/null
+#!/bin/bash
+#
+# Usage: zpios
+# --threadcount -t =values
+# --threadcount_low -l =value
+# --threadcount_high -h =value
+# --threadcount_incr -e =value
+# --regioncount -n =values
+# --regioncount_low -i =value
+# --regioncount_high -j =value
+# --regioncount_incr -k =value
+# --offset -o =values
+# --offset_low -m =value
+# --offset_high -q =value
+# --offset_incr -r =value
+# --chunksize -c =values
+# --chunksize_low -a =value
+# --chunksize_high -b =value
+# --chunksize_incr -g =value
+# --regionsize -s =values
+# --regionsize_low -A =value
+# --regionsize_high -B =value
+# --regionsize_incr -C =value
+# --load -L =dmuio|ssf|fpp
+# --pool -p =pool name
+# --name -M =test name
+# --cleanup -x
+# --prerun -P =pre-command
+# --postrun -R =post-command
+# --log -G =log directory
+# --regionnoise -I =shift
+# --chunknoise -N =bytes
+# --threaddelay -T =jiffies
+# --verify -V
+# --zerocopy -z
+# --nowait -O
+# --human-readable -H
+# --verbose -v =increase verbosity
+# --help -? =this help
+
+ZPIOS_CMD="${ZPIOS} \
+ --load=dmuio \
+ --pool=${ZPOOL_NAME} \
+ --name=${ZPOOL_CONFIG} \
+ --threadcount=256 \
+ --regioncount=65536 \
+ --regionsize=4M \
+ --chunksize=1M \
+ --offset=4M \
+ --cleanup \
+ --human-readable \
+ ${ZPIOS_OPTIONS}"
+
+zpios_start() {
+ if [ ${VERBOSE} ]; then
+ ZPIOS_CMD="${ZPIOS_CMD} --verbose"
+ echo ${ZPIOS_CMD}
+ fi
+
+ ${ZPIOS_CMD} || exit 1
+}
+
+zpios_stop() {
+ [ ${VERBOSE} ] && echo
+}
--- /dev/null
+#!/bin/bash
+#
+# Usage: zpios
+# --threadcount -t =values
+# --threadcount_low -l =value
+# --threadcount_high -h =value
+# --threadcount_incr -e =value
+# --regioncount -n =values
+# --regioncount_low -i =value
+# --regioncount_high -j =value
+# --regioncount_incr -k =value
+# --offset -o =values
+# --offset_low -m =value
+# --offset_high -q =value
+# --offset_incr -r =value
+# --chunksize -c =values
+# --chunksize_low -a =value
+# --chunksize_high -b =value
+# --chunksize_incr -g =value
+# --regionsize -s =values
+# --regionsize_low -A =value
+# --regionsize_high -B =value
+# --regionsize_incr -C =value
+# --load -L =dmuio|ssf|fpp
+# --pool -p =pool name
+# --name -M =test name
+# --cleanup -x
+# --prerun -P =pre-command
+# --postrun -R =post-command
+# --log -G =log directory
+# --regionnoise -I =shift
+# --chunknoise -N =bytes
+# --threaddelay -T =jiffies
+# --verify -V
+# --zerocopy -z
+# --nowait -O
+# --human-readable -H
+# --verbose -v =increase verbosity
+# --help -? =this help
+
+ZPIOS_CMD="${ZPIOS} \
+ --load=dmuio \
+ --pool=${ZPOOL_NAME} \
+ --name=${ZPOOL_CONFIG} \
+ --threadcount=4 \
+ --regioncount=1024 \
+ --regionsize=4M \
+ --chunksize=1M \
+ --offset=4M \
+ --cleanup \
+ --human-readable \
+ ${ZPIOS_OPTIONS}"
+
+zpios_start() {
+ if [ ${VERBOSE} ]; then
+ ZPIOS_CMD="${ZPIOS_CMD} --verbose"
+ echo ${ZPIOS_CMD}
+ fi
+
+ ${ZPIOS_CMD} || exit 1
+}
+
+zpios_stop() {
+ [ ${VERBOSE} ] && echo
+}
--- /dev/null
+1x256th-65536rc-4rs-1cs-4off.sh
\ No newline at end of file
--- /dev/null
+256th-65536rc-4rs-1cs-4off.sh
\ No newline at end of file
--- /dev/null
+16th-8192rc-4rs-1cs-4off.sh
\ No newline at end of file
--- /dev/null
+4th-1024rc-4rs-1cs-4off.sh
\ No newline at end of file
--- /dev/null
+1th-16rc-4rs-1cs-4off.sh
\ No newline at end of file
--- /dev/null
+#!/bin/bash
+#
+# Wrapper script for easily running zpios based tests
+#
+
+basedir="$(dirname $0)"
+
+SCRIPT_COMMON=common.sh
+if [ -f "${basedir}/${SCRIPT_COMMON}" ]; then
+. "${basedir}/${SCRIPT_COMMON}"
+else
+echo "Missing helper script ${SCRIPT_COMMON}" && exit 1
+fi
+
+PROG=zpios.sh
+DATE=`date +%Y%m%d-%H%M%S`
+if [ "${ZPIOS_MODULES}" ]; then
+ MODULES=(${ZPIOS_MODULES[*]})
+else
+ MODULES=(zpios)
+fi
+
+usage() {
+cat << EOF
+USAGE:
+$0 [hvp] <-c config> <-t test>
+
+DESCRIPTION:
+ Helper script for easy zpios benchmarking.
+
+OPTIONS:
+ -h Show this message
+ -v Verbose
+ -f Force everything
+ -p Enable profiling
+ -c Zpool configuration
+ -t Zpios test
+ -o Additional zpios options
+ -l Additional zpool options
+ -s Additional zfs options
+
+EOF
+}
+
+print_header() {
+ echo --------------------- ZPIOS RESULTS ----------------------------
+ echo -n "Date: "; date
+ echo -n "Kernel: "; uname -r
+ dmesg | grep "Loaded Solaris Porting Layer" | tail -n1
+ dmesg | grep "Loaded ZFS Filesystem" | tail -n1
+ echo
+}
+
+print_spl_info() {
+ echo --------------------- SPL Tunings ------------------------------
+ ${SYSCTL} -A | grep spl
+
+ if [ -d /sys/module/spl/parameters ]; then
+ grep [0-9] /sys/module/spl/parameters/*
+ else
+ grep [0-9] /sys/module/spl/*
+ fi
+
+ echo
+}
+
+print_zfs_info() {
+ echo --------------------- ZFS Tunings ------------------------------
+ ${SYSCTL} -A | grep zfs
+
+ if [ -d /sys/module/zfs/parameters ]; then
+ grep [0-9] /sys/module/zfs/parameters/*
+ else
+ grep [0-9] /sys/module/zfs/*
+ fi
+
+ echo
+}
+
+print_stats() {
+ echo ---------------------- Statistics -------------------------------
+ ${SYSCTL} -A | grep spl | grep stack_max
+
+ if [ -d /proc/spl/kstat/ ]; then
+ if [ -f /proc/spl/kstat/zfs/arcstats ]; then
+ echo "* ARC"
+ cat /proc/spl/kstat/zfs/arcstats
+ echo
+ fi
+
+ if [ -f /proc/spl/kstat/zfs/vdev_cache_stats ]; then
+ echo "* VDEV Cache"
+ cat /proc/spl/kstat/zfs/vdev_cache_stats
+ echo
+ fi
+ fi
+
+ if [ -f /proc/spl/kmem/slab ]; then
+ echo "* SPL SLAB"
+ cat /proc/spl/kmem/slab
+ echo
+ fi
+
+ echo
+}
+
+check_test() {
+
+ if [ ! -f ${ZPIOS_TEST} ]; then
+ local NAME=`basename ${ZPIOS_TEST} .sh`
+ ERROR="Unknown test '${NAME}', available tests are:\n"
+
+ for TST in `ls ${ZPIOSDIR}/ | grep ".sh"`; do
+ local NAME=`basename ${TST} .sh`
+ ERROR="${ERROR}${NAME}\n"
+ done
+
+ return 1
+ fi
+
+ return 0
+}
+
+zpios_profile_config() {
+cat > ${PROFILE_DIR}/zpios-config.sh << EOF
+#
+# Zpios Profiling Configuration
+#
+
+PROFILE_DIR=/tmp/zpios/${ZPOOL_CONFIG}+${ZPIOS_TEST_ARG}+${DATE}
+PROFILE_PRE=${ZPIOSPROFILEDIR}/zpios-profile-pre.sh
+PROFILE_POST=${ZPIOSPROFILEDIR}/zpios-profile-post.sh
+PROFILE_USER=${ZPIOSPROFILEDIR}/zpios-profile.sh
+PROFILE_PIDS=${ZPIOSPROFILEDIR}/zpios-profile-pids.sh
+PROFILE_DISK=${ZPIOSPROFILEDIR}/zpios-profile-disk.sh
+PROFILE_ARC_PROC=/proc/spl/kstat/zfs/arcstats
+PROFILE_VDEV_CACHE_PROC=/proc/spl/kstat/zfs/vdev_cache_stats
+
+OPROFILE_KERNEL="/boot/vmlinux-`uname -r`"
+OPROFILE_KERNEL_DIR="/lib/modules/`uname -r`/kernel/"
+OPROFILE_SPL_DIR=${SPLBUILD}/module/
+OPROFILE_ZFS_DIR=${MODDIR}
+
+EOF
+}
+
+zpios_profile_start() {
+ PROFILE_DIR=/tmp/zpios/${ZPOOL_CONFIG}+${ZPIOS_TEST_ARG}+${DATE}
+
+ mkdir -p ${PROFILE_DIR}
+ zpios_profile_config
+ . ${PROFILE_DIR}/zpios-config.sh
+
+ ZPIOS_OPTIONS="${ZPIOS_OPTIONS} --log=${PROFILE_DIR}"
+ ZPIOS_OPTIONS="${ZPIOS_OPTIONS} --prerun=${PROFILE_PRE}"
+ ZPIOS_OPTIONS="${ZPIOS_OPTIONS} --postrun=${PROFILE_POST}"
+
+ /usr/bin/opcontrol --init
+ /usr/bin/opcontrol --setup --vmlinux=${OPROFILE_KERNEL}
+}
+
+zpios_profile_stop() {
+ /usr/bin/opcontrol --shutdown
+ /usr/bin/opcontrol --deinit
+}
+
+PROFILE=
+ZPOOL_CONFIG=zpool-config.sh
+ZPIOS_TEST=zpios-test.sh
+ZPOOL_NAME=zpios
+ZPIOS_OPTIONS=
+ZPOOL_OPTIONS=""
+ZFS_OPTIONS=""
+
+while getopts 'hvfpc:t:o:l:s:' OPTION; do
+ case $OPTION in
+ h)
+ usage
+ exit 1
+ ;;
+ v)
+ VERBOSE=1
+ VERBOSE_FLAG="-v"
+ ;;
+ f)
+ FORCE=1
+ FORCE_FLAG="-f"
+ ;;
+ p)
+ PROFILE=1
+ ;;
+ c)
+ ZPOOL_CONFIG=${OPTARG}
+ ;;
+ t)
+ ZPIOS_TEST_ARG=${OPTARG}
+ ZPIOS_TEST=${ZPIOSDIR}/${OPTARG}.sh
+ ;;
+ o)
+ ZPIOS_OPTIONS=${OPTARG}
+ ;;
+ l) # Passed through to zpool-create.sh
+ ZPOOL_OPTIONS=${OPTARG}
+ ;;
+ s) # Passed through to zpool-create.sh
+ ZFS_OPTIONS=${OPTARG}
+ ;;
+ ?)
+ usage
+ exit
+ ;;
+ esac
+done
+
+if [ $(id -u) != 0 ]; then
+ die "Must run as root"
+fi
+
+# Validate and source your test config
+check_test || die "${ERROR}"
+. ${ZPIOS_TEST}
+
+# Pull in the zpios test module is not loaded. If this fails it is
+# likely because the full module stack was not yet loaded with zfs.sh
+if check_modules; then
+ if ! load_modules; then
+ die "Run 'zfs.sh' to ensure the full module stack is loaded"
+ fi
+fi
+
+# Wait for device creation
+while [ ! -c /dev/zpios ]; do
+ sleep 1
+done
+
+if [ ${VERBOSE} ]; then
+ print_header
+ print_spl_info
+ print_zfs_info
+fi
+
+# Create the zpool configuration
+${ZPOOL_CREATE_SH} ${VERBOSE_FLAG} ${FORCE_FLAG} \
+ -p ${ZPOOL_NAME} -c ${ZPOOL_CONFIG} \
+ -l "${ZPOOL_OPTIONS}" -s "${ZFS_OPTIONS}" || exit 1
+
+if [ ${PROFILE} ]; then
+ zpios_profile_start
+fi
+
+zpios_start
+zpios_stop
+
+if [ ${PROFILE} ]; then
+ zpios_profile_stop
+fi
+
+if [ ${VERBOSE} ]; then
+ print_stats
+fi
+
+# Destroy the zpool configuration
+${ZPOOL_CREATE_SH} ${VERBOSE_FLAG} ${FORCE_FLAG} \
+ -p ${ZPOOL_NAME} -c ${ZPOOL_CONFIG} -d || exit 1
+
+# Unload the test module stack and wait for device removal
+unload_modules
+while [ -c /dev/zpios ]; do
+ sleep 1
+done
+
+exit 0
git://git.camperquake.de / zfs.git / commitdiff