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, 2021 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. $STF_SUITE/tests/perf/perf.shlib 34 35function cleanup 36{ 37 # kill fio and iostat 38 pkill fio 39 pkill iostat 40 recreate_perf_pool 41} 42 43trap "log_fail \"Measure IO stats during sequential read load\"" SIGTERM 44log_onexit cleanup 45 46recreate_perf_pool 47populate_perf_filesystems 48 49# Ensure the working set can be cached in the dbuf cache. 50export TOTAL_SIZE=$(($(get_dbuf_cache_size) * 3 / 4)) 51 52# Variables specific to this test for use by fio. 53export PERF_NTHREADS=${PERF_NTHREADS:-'64'} 54export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'} 55export PERF_IOSIZES=${PERF_IOSIZES:-'64k'} 56 57# Layout the files to be used by the read tests. Create as many files as the 58# largest number of threads. An fio run with fewer threads will use a subset 59# of the available files. 60export NUMJOBS=$(get_max $PERF_NTHREADS) 61export FILE_SIZE=$((TOTAL_SIZE / NUMJOBS)) 62export DIRECTORY=$(get_directory) 63log_must fio $FIO_SCRIPTS/mkfiles.fio 64 65# Set up the scripts and output files that will log performance data. 66lun_list=$(pool_to_lun_list $PERFPOOL) 67log_note "Collecting backend IO stats with lun list $lun_list" 68if is_linux; then 69 typeset perf_record_cmd="perf record -F 99 -a -g -q \ 70 -o /dev/stdout -- sleep ${PERF_RUNTIME}" 71 72 export collect_scripts=( 73 "zpool iostat -lpvyL $PERFPOOL 1" "zpool.iostat" 74 "$PERF_SCRIPTS/prefetch_io.sh $PERFPOOL 1" "prefetch" 75 "vmstat -t 1" "vmstat" 76 "mpstat -P ALL 1" "mpstat" 77 "iostat -tdxyz 1" "iostat" 78 "$perf_record_cmd" "perf" 79 ) 80else 81 export collect_scripts=( 82 "kstat zfs:0 1" "kstat" 83 "vmstat -T d 1" "vmstat" 84 "mpstat -T d 1" "mpstat" 85 "iostat -T d -xcnz 1" "iostat" 86 "dtrace -Cs $PERF_SCRIPTS/io.d $PERFPOOL $lun_list 1" "io" 87 "dtrace -Cs $PERF_SCRIPTS/prefetch_io.d $PERFPOOL 1" "prefetch" 88 "dtrace -s $PERF_SCRIPTS/profile.d" "profile" 89 ) 90fi 91 92log_note "Sequential cached reads with settings: $(print_perf_settings)" 93do_fio_run sequential_reads.fio false false 94log_pass "Measure IO stats during sequential cached read load" 95