usr/src/test/zfs-tests/tests/perf/regression/random_readwrite.ksh

   1 #!/usr/bin/ksh
   2
   3 #
   4 # This file and its contents are supplied under the terms of the
   5 # Common Development and Distribution License ("CDDL"), version 1.0.
   6 # You may only use this file in accordance with the terms of version
   7 # 1.0 of the CDDL.
   8 #
   9 # A full copy of the text of the CDDL should have accompanied this
  10 # source.  A copy of the CDDL is also available via the Internet at
  11 # http://www.illumos.org/license/CDDL.
  12 #
  13
  14 #
  15 # Copyright (c) 2015, 2016 by Delphix. All rights reserved.
  16 #
  17
  18 #
  19 # Description:
  20 # Trigger fio runs using the random_readwrite job file. The number of runs and
  21 # data collected is determined by the PERF_* variables. See do_fio_run for
  22 # details about these variables.
  23 #
  24 # The files to read and write from are created prior to the first fio run,
  25 # and used for all fio runs. The ARC is cleared with `zinject -a` prior to
  26 # each run so reads will go to disk.
  27 #
  28 # Thread/Concurrency settings:
  29 #    PERF_NTHREADS defines the number of files created in the test filesystem,
  30 #    as well as the number of threads that will simultaneously drive IO to
  31 #    those files.  The settings chosen are from measurements in the
  32 #    PerfAutoESX/ZFSPerfESX Environments, selected at concurrency levels that
  33 #    are at peak throughput but lowest latency.  Higher concurrency introduces
  34 #    queue time latency and would reduce the impact of code-induced performance
  35 #    regressions.
  36 #
  37
  38 . $STF_SUITE/include/libtest.shlib
  39 . $STF_SUITE/tests/perf/perf.shlib
  40
  41 function cleanup
  42 {
  43         recreate_perf_pool
  44 }
  45
  46 log_onexit cleanup
  47
  48 recreate_perf_pool
  49 populate_perf_filesystems
  50
  51 # Aim to fill the pool to 50% capacity while accounting for a 3x compressratio.
  52 export TOTAL_SIZE=$(($(get_prop avail $PERFPOOL) * 3 / 2))
  53
  54 # Variables for use by fio.
  55 if [[ -n $PERF_REGRESSION_WEEKLY ]]; then
  56         export PERF_RUNTIME=${PERF_RUNTIME:-$PERF_RUNTIME_WEEKLY}
  57         export PERF_RUNTYPE=${PERF_RUNTYPE:-'weekly'}
  58         export PERF_NTHREADS=${PERF_NTHREADS:-'4 8 16 64'}
  59         export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'}
  60         export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'0 1'}
  61         export PERF_IOSIZES=''          # bssplit used instead
  62 elif [[ -n $PERF_REGRESSION_NIGHTLY ]]; then
  63         export PERF_RUNTIME=${PERF_RUNTIME:-$PERF_RUNTIME_NIGHTLY}
  64         export PERF_RUNTYPE=${PERF_RUNTYPE:-'nightly'}
  65         export PERF_NTHREADS=${PERF_NTHREADS:-'32 64'}
  66         export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'}
  67         export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'}
  68         export PERF_IOSIZES=''          # bssplit used instead
  69 fi
  70
  71 # Layout the files to be used by the readwrite tests. Create as many files
  72 # as the largest number of threads. An fio run with fewer threads will use
  73 # a subset of the available files.
  74 export NUMJOBS=$(get_max $PERF_NTHREADS)
  75 export FILE_SIZE=$((TOTAL_SIZE / NUMJOBS))
  76 export DIRECTORY=$(get_directory)
  77 log_must fio $FIO_SCRIPTS/mkfiles.fio
  78
  79 # Set up the scripts and output files that will log performance data.
  80 lun_list=$(pool_to_lun_list $PERFPOOL)
  81 log_note "Collecting backend IO stats with lun list $lun_list"
  82 export collect_scripts=(
  83     "kstat zfs:0 1"  "kstat"
  84     "vmstat 1"       "vmstat"
  85     "mpstat 1"       "mpstat"
  86     "iostat -xcnz 1" "iostat"
  87     "dtrace -Cs $PERF_SCRIPTS/io.d $PERFPOOL $lun_list 1" "io"
  88     "dtrace  -s $PERF_SCRIPTS/profile.d"                  "profile"
  89 )
  90
  91 log_note "Random reads and writes with $PERF_RUNTYPE settings"
  92 do_fio_run random_readwrite.fio false true
  93 log_pass "Measure IO stats during random read and write load"