scripts/profile-kpios-disk.sh

   1 #!/bin/bash
   2 # profile-kpios-disk.sh
   3 #
   4 # /proc/diskinfo <after skipping major/minor>
   5 # Field 1 -- device name
   6 # Field 2 -- # of reads issued
   7 # Field 3 -- # of reads merged
   8 # Field 4 -- # of sectors read
   9 # Field 5 -- # of milliseconds spent reading
  10 # Field 6 -- # of writes completed
  11 # Field 7 -- # of writes merged
  12 # Field 8 -- # of sectors written
  13 # Field 9 -- # of milliseconds spent writing
  14 # Field 10 -- # of I/Os currently in progress
  15 # Field 11 -- # of milliseconds spent doing I/Os
  16 # Field 12 -- weighted # of milliseconds spent doing I/Os
  17
  18 RUN_PIDS=${0}
  19 RUN_LOG_DIR=${1}
  20 RUN_ID=${2}
  21
  22 create_table() {
  23         local FIELD=$1
  24         local ROW_M=()
  25         local ROW_N=()
  26         local HEADER=1
  27         local STEP=1
  28
  29         for DISK_FILE in `ls -r --sort=time --time=ctime ${RUN_LOG_DIR}/${RUN_ID}/disk-[0-9]*`; do
  30                 ROW_M=( ${ROW_N[@]} )
  31                 ROW_N=( `cat ${DISK_FILE} | grep sd | cut -c11- | cut -f${FIELD} -d' ' | tr "\n" "\t"` )
  32
  33                 if [ $HEADER -eq 1 ]; then
  34                         echo -n "step, "
  35                         cat ${DISK_FILE} | grep sd | cut -c11- | cut -f1 -d' ' | tr "\n" ", "
  36                         echo "total"
  37                         HEADER=0
  38                 fi
  39
  40                 if [ ${#ROW_M[@]} -eq 0 ]; then
  41                         continue
  42                 fi
  43
  44                 if [ ${#ROW_M[@]} -ne ${#ROW_N[@]} ]; then
  45                         echo "Badly formatted profile data in ${DISK_FILE}"
  46                         break
  47                 fi
  48
  49                 TOTAL=0
  50                 echo -n "${STEP}, "
  51                 for (( i=0; i<${#ROW_N[@]}; i++ )); do
  52                         DELTA=`echo "${ROW_N[${i}]}-${ROW_M[${i}]}" | bc`
  53                         let TOTAL=${TOTAL}+${DELTA}
  54                         echo -n "${DELTA}, "
  55                 done
  56                 echo "${TOTAL}, "
  57
  58                 let STEP=${STEP}+1
  59         done
  60 }
  61
  62 create_table_mbs() {
  63         local FIELD=$1
  64         local TIME=$2
  65         local ROW_M=()
  66         local ROW_N=()
  67         local HEADER=1
  68         local STEP=1
  69
  70         for DISK_FILE in `ls -r --sort=time --time=ctime ${RUN_LOG_DIR}/${RUN_ID}/disk-[0-9]*`; do
  71                 ROW_M=( ${ROW_N[@]} )
  72                 ROW_N=( `cat ${DISK_FILE} | grep sd | cut -c11- | cut -f${FIELD} -d' ' | tr "\n" "\t"` )
  73
  74                 if [ $HEADER -eq 1 ]; then
  75                         echo -n "step, "
  76                         cat ${DISK_FILE} | grep sd | cut -c11- | cut -f1 -d' ' | tr "\n" ", "
  77                         echo "total"
  78                         HEADER=0
  79                 fi
  80
  81                 if [ ${#ROW_M[@]} -eq 0 ]; then
  82                         continue
  83                 fi
  84
  85                 if [ ${#ROW_M[@]} -ne ${#ROW_N[@]} ]; then
  86                         echo "Badly formatted profile data in ${DISK_FILE}"
  87                         break
  88                 fi
  89
  90                 TOTAL=0
  91                 echo -n "${STEP}, "
  92                 for (( i=0; i<${#ROW_N[@]}; i++ )); do
  93                         DELTA=`echo "${ROW_N[${i}]}-${ROW_M[${i}]}" | bc`
  94                         MBS=`echo "scale=2; ((${DELTA}*512)/${TIME})/(1024*1024)" | bc`
  95                         TOTAL=`echo "scale=2; ${TOTAL}+${MBS}" | bc`
  96                         echo -n "${MBS}, "
  97                 done
  98                 echo "${TOTAL}, "
  99
 100                 let STEP=${STEP}+1
 101         done
 102 }
 103
 104 echo
 105 echo "Reads issued per device"
 106 create_table 2
 107 echo
 108 echo "Reads merged per device"
 109 create_table 3
 110 echo
 111 echo "Sectors read per device"
 112 create_table 4
 113 echo "MB/s per device"
 114 create_table_mbs 4 3
 115
 116 echo
 117 echo "Writes issued per device"
 118 create_table 6
 119 echo
 120 echo "Writes merged per device"
 121 create_table 7
 122 echo
 123 echo "Sectors written per device"
 124 create_table 8
 125 echo "MB/s per device"
 126 create_table_mbs 8 3
 127
 128 exit 0