xref: /illumos-gate/usr/src/test/zfs-tests/tests/perf/regression/sequential_reads_dbuf_cached.ksh (revision 5f82aa32fbc5dc2c59bca6ff315f44a4c4c9ea86) 
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) 2016 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 dateset 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	log_must zfs destroy $TESTFS
38}
39
40log_assert "Measure IO stats during sequential read load"
41log_onexit cleanup
42
43export TESTFS=$PERFPOOL/testfs
44recreate_perfpool
45log_must zfs create $PERF_FS_OPTS $TESTFS
46
47# Ensure the working set can be cached in the dbuf cache.
48export TOTAL_SIZE=$(($(get_max_dbuf_cache_size) * 3 / 4))
49
50# Variables for use by fio.
51if [[ -n $PERF_REGRESSION_WEEKLY ]]; then
52	export PERF_RUNTIME=${PERF_RUNTIME:-$PERF_RUNTIME_WEEKLY}
53	export PERF_RUNTYPE=${PERF_RUNTYPE:-'weekly'}
54	export PERF_NTHREADS=${PERF_NTHREADS:-'16 64'}
55	export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'}
56	export PERF_IOSIZES=${PERF_IOSIZES:-'64k'}
57elif [[ -n $PERF_REGRESSION_NIGHTLY ]]; then
58	export PERF_RUNTIME=${PERF_RUNTIME:-$PERF_RUNTIME_NIGHTLY}
59	export PERF_RUNTYPE=${PERF_RUNTYPE:-'nightly'}
60	export PERF_NTHREADS=${PERF_NTHREADS:-'64'}
61	export PERF_SYNC_TYPES=${PERF_SYNC_TYPES:-'1'}
62	export PERF_IOSIZES=${PERF_IOSIZES:-'64k'}
63fi
64
65# Layout the files to be used by the read tests. Create as many files as the
66# largest number of threads. An fio run with fewer threads will use a subset
67# of the available files.
68export NUMJOBS=$(get_max $PERF_NTHREADS)
69export FILE_SIZE=$((TOTAL_SIZE / NUMJOBS))
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"
75export collect_scripts=("dtrace -s $PERF_SCRIPTS/io.d $PERFPOOL $lun_list 1"
76    "io" "dtrace -Cs $PERF_SCRIPTS/prefetch_io.d $PERFPOOL 1" "prefetch"
77    "vmstat 1" "vmstat" "mpstat 1" "mpstat" "iostat -xcnz 1" "iostat"
78    "dtrace -s $PERF_SCRIPTS/profile.d" "profile" "kstat zfs:0 1" "kstat")
79
80log_note "Sequential cached reads with $PERF_RUNTYPE settings"
81do_fio_run sequential_reads.fio false false
82log_pass "Measure IO stats during sequential cached read load"
83