xref: /illumos-gate/usr/src/test/zfs-tests/tests/perf/regression/random_reads.ksh (revision 1a2d662a91cee3bf82f41cd47c7ae6f3825d9db2) 
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 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. $STF_SUITE/tests/perf/perf.shlib
40
41function cleanup
42{
43	recreate_perf_pool
44}
45
46log_onexit cleanup
47
48recreate_perf_pool
49populate_perf_filesystems
50
51# Aim to fill the pool to 50% capacity while accounting for a 3x compressratio.
52export TOTAL_SIZE=$(($(get_prop avail $PERFPOOL) * 3 / 2))
53
54# Variables for use by fio.
55if [[ -n $PERF_REGRESSION_WEEKLY ]]; then
56	export PERF_RUNTIME=${PERF_RUNTIME:-$PERF_RUNTIME_WEEKLY}
57	export PERF_RUNTYPE=${PERF_RUNTYPE:-'weekly'}
58	export PERF_NTHREADS=${PERF_NTHREADS:-'8 16 32 64'}
59	export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'}
60	export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'}
61	export PERF_IOSIZES=${PERF_IOSIZES:-'8k 64k 128k'}
62elif [[ -n $PERF_REGRESSION_NIGHTLY ]]; then
63	export PERF_RUNTIME=${PERF_RUNTIME:-$PERF_RUNTIME_NIGHTLY}
64	export PERF_RUNTYPE=${PERF_RUNTYPE:-'nightly'}
65	export PERF_NTHREADS=${PERF_NTHREADS:-'16 32'}
66	export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'}
67	export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'}
68	export PERF_IOSIZES=${PERF_IOSIZES:-'8k'}
69fi
70
71# Layout the files to be used by the read tests. Create as many files as the
72# largest number of threads. An fio run with fewer threads will use a subset
73# of the available files.
74export NUMJOBS=$(get_max $PERF_NTHREADS)
75export FILE_SIZE=$((TOTAL_SIZE / NUMJOBS))
76export DIRECTORY=$(get_directory)
77log_must fio $FIO_SCRIPTS/mkfiles.fio
78
79# Set up the scripts and output files that will log performance data.
80lun_list=$(pool_to_lun_list $PERFPOOL)
81log_note "Collecting backend IO stats with lun list $lun_list"
82export collect_scripts=(
83    "kstat zfs:0 1"  "kstat"
84    "vmstat -T d 1"       "vmstat"
85    "mpstat -T d 1"       "mpstat"
86    "iostat -T d -xcnz 1" "iostat"
87    "dtrace -Cs $PERF_SCRIPTS/io.d $PERFPOOL $lun_list 1" "io"
88    "dtrace  -s $PERF_SCRIPTS/profile.d"                  "profile"
89)
90
91log_note "Random reads with $PERF_RUNTYPE settings"
92do_fio_run random_reads.fio false true
93log_pass "Measure IO stats during random read load"
94