usr/src/test/zfs-tests/tests/perf/regression/sequential_reads_cached.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 sequential_reads 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 from are created prior to the first fio run, and used
  25 # for all fio runs. The ARC is not cleared to ensure that all data is cached.
  26 #
  27
  28 . $STF_SUITE/include/libtest.shlib
  29 . $STF_SUITE/tests/perf/perf.shlib
  30
  31 function cleanup
  32 {
  33         log_must zfs destroy $TESTFS
  34 }
  35
  36 log_assert "Measure IO stats during sequential read load"
  37 log_onexit cleanup
  38
  39 export TESTFS=$PERFPOOL/testfs
  40 recreate_perfpool
  41 log_must zfs create $PERF_FS_OPTS $TESTFS
  42
  43 # Make sure the working set can be cached in the arc. Aim for 1/2 of arc.
  44 export TOTAL_SIZE=$(($(get_max_arc_size) / 2))
  45
  46 # Variables for use by fio.
  47 if [[ -n $PERF_REGRESSION_WEEKLY ]]; then
  48         export PERF_RUNTIME=${PERF_RUNTIME:-$PERF_RUNTIME_WEEKLY}
  49         export PERF_RUNTYPE=${PERF_RUNTYPE:-'weekly'}
  50         export PERF_NTHREADS=${PERF_NTHREADS:-'16 64'}
  51         export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'}
  52         export PERF_IOSIZES=${PERF_IOSIZES:-'64k 128k 1m'}
  53 elif [[ -n $PERF_REGRESSION_NIGHTLY ]]; then
  54         export PERF_RUNTIME=${PERF_RUNTIME:-$PERF_RUNTIME_NIGHTLY}
  55         export PERF_RUNTYPE=${PERF_RUNTYPE:-'nightly'}
  56         export PERF_NTHREADS=${PERF_NTHREADS:-'64 128'}
  57         export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'}
  58         export PERF_IOSIZES=${PERF_IOSIZES:-'128k 1m'}
  59 fi
  60
  61 # Layout the files to be used by the read tests. Create as many files as the
  62 # largest number of threads. An fio run with fewer threads will use a subset
  63 # of the available files.
  64 export NUMJOBS=$(get_max $PERF_NTHREADS)
  65 export FILE_SIZE=$((TOTAL_SIZE / NUMJOBS))
  66 log_must fio $FIO_SCRIPTS/mkfiles.fio
  67
  68 # Set up the scripts and output files that will log performance data.
  69 lun_list=$(pool_to_lun_list $PERFPOOL)
  70 log_note "Collecting backend IO stats with lun list $lun_list"
  71 export collect_scripts=("$PERF_SCRIPTS/io.d $PERFPOOL $lun_list 1" "io"
  72     "$PERF_SCRIPTS/prefetch_io.d $PERFPOOL 1" "prefetch" "vmstat 1" "vmstat"
  73     "mpstat 1" "mpstat" "iostat -xcnz 1" "iostat")
  74
  75 log_note "Sequential cached reads with $PERF_RUNTYPE settings"
  76 do_fio_run sequential_reads.fio false false
  77 log_pass "Measure IO stats during sequential cached read load"