sys/contrib/openzfs/tests/zfs-tests/tests/perf/regression/sequential_reads_dbuf_cached.ksh

   1 #!/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) 2016, 2020 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 # This is basically a copy of the sequential_reads_cached test case, but with
  28 # a smaller dataset so that we can fit everything into the decompressed, linear
  29 # space in the dbuf cache.
  30 #
  31
  32 . $STF_SUITE/include/libtest.shlib
  33 . $STF_SUITE/tests/perf/perf.shlib
  34
  35 function cleanup
  36 {
  37         # kill fio and iostat
  38         pkill fio
  39         pkill iostat
  40         recreate_perf_pool
  41 }
  42
  43 trap "log_fail \"Measure IO stats during sequential read load\"" SIGTERM
  44 log_onexit cleanup
  45
  46 recreate_perf_pool
  47 populate_perf_filesystems
  48
  49 # Ensure the working set can be cached in the dbuf cache.
  50 export TOTAL_SIZE=$(($(get_max_dbuf_cache_size) * 3 / 4))
  51
  52 # Variables for use by fio.
  53 if [[ -n $PERF_REGRESSION_WEEKLY ]]; then
  54         export PERF_RUNTIME=${PERF_RUNTIME:-$PERF_RUNTIME_WEEKLY}
  55         export PERF_RANDSEED=${PERF_RANDSEED:-'1234'}
  56         export PERF_COMPPERCENT=${PERF_COMPPERCENT:-'66'}
  57         export PERF_COMPCHUNK=${PERF_COMPCHUNK:-'4096'}
  58         export PERF_RUNTYPE=${PERF_RUNTYPE:-'weekly'}
  59         export PERF_NTHREADS=${PERF_NTHREADS:-'8 16 32 64'}
  60         export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'}
  61         export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'}
  62         export PERF_IOSIZES=${PERF_IOSIZES:-'8k 64k 128k'}
  63 elif [[ -n $PERF_REGRESSION_NIGHTLY ]]; then
  64         export PERF_RUNTIME=${PERF_RUNTIME:-$PERF_RUNTIME_NIGHTLY}
  65         export PERF_RANDSEED=${PERF_RANDSEED:-'1234'}
  66         export PERF_COMPPERCENT=${PERF_COMPPERCENT:-'66'}
  67         export PERF_COMPCHUNK=${PERF_COMPCHUNK:-'4096'}
  68         export PERF_RUNTYPE=${PERF_RUNTYPE:-'nightly'}
  69         export PERF_NTHREADS=${PERF_NTHREADS:-'64'}
  70         export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'}
  71         export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'}
  72         export PERF_IOSIZES=${PERF_IOSIZES:-'64k'}
  73 fi
  74
  75 # Layout the files to be used by the read tests. Create as many files as the
  76 # largest number of threads. An fio run with fewer threads will use a subset
  77 # of the available files.
  78 export NUMJOBS=$(get_max $PERF_NTHREADS)
  79 export FILE_SIZE=$((TOTAL_SIZE / NUMJOBS))
  80 export DIRECTORY=$(get_directory)
  81 log_must fio $FIO_SCRIPTS/mkfiles.fio
  82
  83 # Set up the scripts and output files that will log performance data.
  84 lun_list=$(pool_to_lun_list $PERFPOOL)
  85 log_note "Collecting backend IO stats with lun list $lun_list"
  86 if is_linux; then
  87         typeset perf_record_cmd="perf record -F 99 -a -g -q \
  88             -o /dev/stdout -- sleep ${PERF_RUNTIME}"
  89
  90         export collect_scripts=(
  91             "zpool iostat -lpvyL $PERFPOOL 1" "zpool.iostat"
  92             "$PERF_SCRIPTS/prefetch_io.sh $PERFPOOL 1" "prefetch"
  93             "vmstat -t 1" "vmstat"
  94             "mpstat -P ALL 1" "mpstat"
  95             "iostat -tdxyz 1" "iostat"
  96             "$perf_record_cmd" "perf"
  97         )
  98 else
  99         export collect_scripts=(
 100             "kstat zfs:0 1" "kstat"
 101             "vmstat -T d 1" "vmstat"
 102             "mpstat -T d 1" "mpstat"
 103             "iostat -T d -xcnz 1" "iostat"
 104             "dtrace -Cs $PERF_SCRIPTS/io.d $PERFPOOL $lun_list 1" "io"
 105             "dtrace -Cs $PERF_SCRIPTS/prefetch_io.d $PERFPOOL 1" "prefetch"
 106             "dtrace -s $PERF_SCRIPTS/profile.d" "profile"
 107         )
 108 fi
 109
 110 log_note "Sequential cached reads with $PERF_RUNTYPE settings"
 111 do_fio_run sequential_reads.fio false false
 112 log_pass "Measure IO stats during sequential cached read load"