Add txgs-<pool> kstat file

[zfs.git] / lib / libspl / include / sys / kstat.h

diff --git a/lib/libspl/include/sys/kstat.h b/lib/libspl/include/sys/kstat.h
index fcd3ed9..6bd2ec8 100644 (file)
--- a/lib/libspl/include/sys/kstat.h
+++ b/lib/libspl/include/sys/kstat.h
@@ -228,8 +228,10 @@ typedef struct kstat32 {
                                        /* ks_ndata == 1 */
 #define        KSTAT_TYPE_TIMER        4       /* event timer */
                                        /* ks_ndata >= 1 */
+#define        KSTAT_TYPE_TXG          5       /* txg statistics */
+                                       /* ks_ndata >= 0 */
 
-#define        KSTAT_NUM_TYPES         5
+#define        KSTAT_NUM_TYPES         6
 
 /*
  * kstat class
@@ -698,6 +700,29 @@ typedef struct kstat_timer {
 
 #define        KSTAT_TIMER_PTR(kptr)   ((kstat_timer_t *)(kptr)->ks_data)
 
+/*
+ * TXG statistics - bytes read/written and iops performed
+ */
+typedef enum kstat_txg_state {
+       TXG_STATE_OPEN      = 1,
+       TXG_STATE_QUIESCING = 2,
+       TXG_STATE_SYNCING   = 3,
+       TXG_STATE_COMMITTED = 4,
+} kstat_txg_state_t;
+
+typedef struct kstat_txg {
+       u_longlong_t            txg;            /* txg id */
+       kstat_txg_state_t       state;          /* txg state */
+       hrtime_t                birth;          /* birth time stamp */
+       u_longlong_t            nread;          /* number of bytes read */
+       u_longlong_t            nwritten;       /* number of bytes written */
+       uint_t                  reads;          /* number of read operations */
+       uint_t                  writes;         /* number of write operations */
+       hrtime_t                open_time;      /* open time */
+       hrtime_t                quiesce_time;   /* quiesce time */
+       hrtime_t                sync_time;      /* sync time */
+} kstat_txg_t;
+
 #if    defined(_KERNEL)
 
 #include <sys/t_lock.h>