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) 2015, 2021 by Delphix. All rights reserved. 16# 17 18# 19# Description: 20# Trigger fio runs using the random_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 cleared with `zinject -a` prior to each run 26# 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. $STF_SUITE/tests/perf/perf.shlib 40 41command -v fio > /dev/null || log_unsupported "fio missing" 42 43function cleanup 44{ 45 # kill fio and iostat 46 pkill fio 47 pkill iostat 48 recreate_perf_pool 49} 50 51trap "log_fail \"Measure IO stats during random read load\"" SIGTERM 52log_onexit cleanup 53 54recreate_perf_pool 55populate_perf_filesystems 56 57# Aim to fill the pool to 50% capacity while accounting for a 3x compressratio. 58export TOTAL_SIZE=$(($(get_prop avail $PERFPOOL) * 3 / 2)) 59 60# Variables specific to this test for use by fio. 61export PERF_NTHREADS=${PERF_NTHREADS:-'16 32'} 62export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'} 63export PERF_IOSIZES=${PERF_IOSIZES:-'8k'} 64export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'} 65 66# Layout the files to be used by the read tests. Create as many files as the 67# largest number of threads. An fio run with fewer threads will use a subset 68# of the available files. 69export NUMJOBS=$(get_max $PERF_NTHREADS) 70export FILE_SIZE=$((TOTAL_SIZE / NUMJOBS)) 71export DIRECTORY=$(get_directory) 72log_must fio $FIO_SCRIPTS/mkfiles.fio 73 74# Set up the scripts and output files that will log performance data. 75lun_list=$(pool_to_lun_list $PERFPOOL) 76log_note "Collecting backend IO stats with lun list $lun_list" 77if is_linux; then 78 typeset perf_record_cmd="perf record -F 99 -a -g -q \ 79 -o /dev/stdout -- sleep ${PERF_RUNTIME}" 80 81 export collect_scripts=( 82 "zpool iostat -lpvyL $PERFPOOL 1" "zpool.iostat" 83 "vmstat -t 1" "vmstat" 84 "mpstat -P ALL 1" "mpstat" 85 "iostat -tdxyz 1" "iostat" 86 "$perf_record_cmd" "perf" 87 ) 88else 89 export collect_scripts=( 90 "$PERF_SCRIPTS/io.d $PERFPOOL $lun_list 1" "io" 91 "vmstat -T d 1" "vmstat" 92 "mpstat -T d 1" "mpstat" 93 "iostat -T d -xcnz 1" "iostat" 94 ) 95fi 96 97log_note "Random reads with settings: $(print_perf_settings)" 98do_fio_run random_reads.fio false true 99log_pass "Measure IO stats during random read load" 100