1#!/bin/ksh -p 2# 3# CDDL HEADER START 4# 5# This file and its contents are supplied under the terms of the 6# Common Development and Distribution License ("CDDL"), version 1.0. 7# You may only use this file in accordance with the terms of version 8# 1.0 of the CDDL. 9# 10# A full copy of the text of the CDDL should have accompanied this 11# source. A copy of the CDDL is also available via the Internet at 12# http://www.illumos.org/license/CDDL. 13# 14# CDDL HEADER END 15# 16 17# 18# Copyright (c) 2020 The FreeBSD Foundation [1] 19# 20# [1] Portions of this software were developed by Allan Jude 21# under sponsorship from the FreeBSD Foundation. 22 23. $STF_SUITE/include/libtest.shlib 24 25export SIZE=1G 26export VDIR=$TESTDIR/disk.persist_l2arc 27export VDEV="$VDIR/a" 28export VDEV_CACHE="$VDIR/b" 29 30# fio options 31export DIRECTORY=/$TESTPOOL-l2arc 32export NUMJOBS=4 33export RUNTIME=30 34export PERF_RANDSEED=1234 35export PERF_COMPPERCENT=66 36export PERF_COMPCHUNK=0 37export BLOCKSIZE=128K 38export SYNC_TYPE=0 39export DIRECT=1 40 41# 42# DESCRIPTION: 43# System with compressed_arc disabled succeeds at reading from L2ARC 44# 45# STRATEGY: 46# 1. Disable compressed_arc. 47# 2. Create pool with a cache device and compression enabled. 48# 3. Read the number of L2ARC checksum failures. 49# 4. Create a random file in that pool and random read for 30 sec. 50# 5. Read the number of L2ARC checksum failures. 51# 52 53verify_runnable "global" 54 55command -v fio > /dev/null || log_unsupported "fio missing" 56 57log_assert "L2ARC with compressed_arc disabled succeeds." 58 59origin_carc_setting=$(get_tunable COMPRESSED_ARC_ENABLED) 60 61function cleanup 62{ 63 if poolexists $TESTPOOL-l2arc ; then 64 destroy_pool $TESTPOOL-l2arc 65 fi 66 67 log_must set_tunable64 COMPRESSED_ARC_ENABLED $origin_carc_setting 68} 69log_onexit cleanup 70 71log_must rm -rf $VDIR 72log_must mkdir -p $VDIR 73log_must mkfile $SIZE $VDEV 74 75# Disable Compressed ARC so that in-ARC and on-disk will not match 76log_must set_tunable64 COMPRESSED_ARC_ENABLED 0 77 78typeset fill_mb=800 79typeset cache_sz=$(( floor($fill_mb / 2) )) 80export FILE_SIZE=$(( floor($fill_mb / $NUMJOBS) ))M 81 82log_must truncate -s ${cache_sz}M $VDEV_CACHE 83 84log_must zpool create -O compression=lz4 -f $TESTPOOL-l2arc $VDEV cache $VDEV_CACHE 85 86l2_cksum_bad_start=$(get_arcstat l2_cksum_bad) 87 88log_must fio $FIO_SCRIPTS/mkfiles.fio 89log_must fio $FIO_SCRIPTS/random_reads.fio 90 91l2_cksum_bad_end=$(get_arcstat l2_cksum_bad) 92 93log_note "L2ARC Failed Checksums before: $l2_cksum_bad_start After:"\ 94 "$l2_cksum_bad_end" 95log_must test $(( $l2_cksum_bad_end - $l2_cksum_bad_start )) -eq 0 96 97log_must zpool destroy -f $TESTPOOL-l2arc 98 99log_pass "L2ARC with compressed_arc disabled does not result in checksum"\ 100 "errors." 101