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_writes 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# Prior to each fio run the dataset is recreated, and fio writes new files
25# into an otherwise empty pool.
26#
27# Thread/Concurrency settings:
28#    PERF_NTHREADS defines the number of files created in the test filesystem,
29#    as well as the number of threads that will simultaneously drive IO to
30#    those files.  The settings chosen are from measurements in the
31#    PerfAutoESX/ZFSPerfESX Environments, selected at concurrency levels that
32#    are at peak throughput but lowest latency.  Higher concurrency introduces
33#    queue time latency and would reduce the impact of code-induced performance
34#    regressions.
35#
36
37. $STF_SUITE/include/libtest.shlib
38. $STF_SUITE/tests/perf/perf.shlib
39
40command -v fio > /dev/null || log_unsupported "fio missing"
41
42function cleanup
43{
44	# kill fio and iostat
45	pkill fio
46	pkill iostat
47	recreate_perf_pool
48}
49
50trap "log_fail \"Measure IO stats during random read load\"" SIGTERM
51log_onexit cleanup
52
53recreate_perf_pool
54populate_perf_filesystems
55
56# Aim to fill the pool to 50% capacity while accounting for a 3x compressratio.
57export TOTAL_SIZE=$(($(get_prop avail $PERFPOOL) * 3 / 2))
58
59# Variables specific to this test for use by fio.
60export PERF_NTHREADS=${PERF_NTHREADS:-'32 128'}
61export PERF_NTHREADS_PER_FS=${PERF_NTHREADS_PER_FS:-'0'}
62export PERF_IOSIZES=${PERF_IOSIZES:-'8k'}
63export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'0 1'}
64
65# Set up the scripts and output files that will log performance data.
66lun_list=$(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 $PERFPOOL 1" "zpool.iostat"
74	    "vmstat -t 1" "vmstat"
75	    "mpstat -P ALL 1" "mpstat"
76	    "iostat -tdxyz 1" "iostat"
77	    "$perf_record_cmd" "perf"
78	)
79else
80	export collect_scripts=(
81	    "$PERF_SCRIPTS/io.d $PERFPOOL $lun_list 1" "io"
82	    "vmstat -T d 1" "vmstat"
83	    "mpstat -T d 1" "mpstat"
84	    "iostat -T d -xcnz 1" "iostat"
85	)
86fi
87
88log_note "Random writes with settings: $(print_perf_settings)"
89do_fio_run random_writes.fio true false
90log_pass "Measure IO stats during random write load"
91