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 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 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. $STF_SUITE/tests/perf/perf.shlib 40 41function cleanup 42{ 43 # kill fio and iostat 44 pkill fio 45 pkill iostat 46 recreate_perf_pool 47} 48 49trap "log_fail \"Measure IO stats during random read load\"" SIGTERM 50log_onexit cleanup 51 52recreate_perf_pool 53populate_perf_filesystems 54 55# Aim to fill the pool to 50% capacity while accounting for a 3x compressratio. 56export TOTAL_SIZE=$(($(get_prop avail $PERFPOOL) * 3 / 2)) 57 58# Variables specific to this test for use by fio. 59export PERF_NTHREADS=${PERF_NTHREADS:-'8 16'} 60export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'} 61export PERF_IOSIZES=${PERF_IOSIZES:-'128k 1m'} 62export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'} 63 64# Layout the files to be used by the read tests. Create as many files as the 65# largest number of threads. An fio run with fewer threads will use a subset 66# of the available files. 67export NUMJOBS=$(get_max $PERF_NTHREADS) 68export FILE_SIZE=$((TOTAL_SIZE / NUMJOBS)) 69export DIRECTORY=$(get_directory) 70log_must fio $FIO_SCRIPTS/mkfiles.fio 71 72# Set up the scripts and output files that will log performance data. 73lun_list=$(pool_to_lun_list $PERFPOOL) 74log_note "Collecting backend IO stats with lun list $lun_list" 75if is_linux; then 76 typeset perf_record_cmd="perf record -F 99 -a -g -q \ 77 -o /dev/stdout -- sleep ${PERF_RUNTIME}" 78 79 export collect_scripts=( 80 "zpool iostat -lpvyL $PERFPOOL 1" "zpool.iostat" 81 "$PERF_SCRIPTS/prefetch_io.sh $PERFPOOL 1" "prefetch" 82 "vmstat -t 1" "vmstat" 83 "mpstat -P ALL 1" "mpstat" 84 "iostat -tdxyz 1" "iostat" 85 "$perf_record_cmd" "perf" 86 ) 87else 88 export collect_scripts=( 89 "$PERF_SCRIPTS/io.d $PERFPOOL $lun_list 1" "io" 90 "$PERF_SCRIPTS/prefetch_io.d $PERFPOOL 1" "prefetch" 91 "vmstat -T d 1" "vmstat" 92 "mpstat -T d 1" "mpstat" 93 "iostat -T d -xcnz 1" "iostat" 94 ) 95fi 96 97log_note "Sequential reads with settings: $(print_perf_settings)" 98do_fio_run sequential_reads.fio false true 99log_pass "Measure IO stats during sequential read load" 100