mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Gao Xiang
8cecbd6e7c
This adds a stress testcase to shrink free space as much as possible in the last AG with background fsstress workload. The expectation is that no crash happens with expected output. Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Gao Xiang <hsiangkao@redhat.com> Signed-off-by: Eryu Guan <guaneryu@gmail.com>
123 lines
3.1 KiB
Bash
Executable File
123 lines
3.1 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2020-2021 Red Hat, Inc. All Rights Reserved.
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#
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# FS QA Test No. 168
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#
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# XFS online shrinkfs stress test
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#
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# This test attempts to shrink unused space as much as possible with
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# background fsstress workload. It will decrease the shrink size if
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# larger size fails. And totally repeat 2 * TIME_FACTOR times.
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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create_scratch()
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{
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_scratch_mkfs_xfs $@ | tee -a $seqres.full | \
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_filter_mkfs 2>$tmp.mkfs >/dev/null
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. $tmp.mkfs
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_scratch_mount
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# fix the reserve block pool to a known size so that the enospc
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# calculations work out correctly.
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_scratch_resvblks 1024 > /dev/null 2>&1
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}
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fill_scratch()
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{
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$XFS_IO_PROG -f -c "falloc 0 $1" $SCRATCH_MNT/resvfile
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}
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stress_scratch()
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{
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local procs=3
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local nops=1000
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# -w ensures that the only ops are ones which cause write I/O
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local FSSTRESS_ARGS=`_scale_fsstress_args -d $SCRATCH_MNT -w \
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-p $procs -n $nops $FSSTRESS_AVOID`
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$FSSTRESS_PROG $FSSTRESS_ARGS >> $seqres.full 2>&1
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}
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# real QA test starts here
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_supported_fs xfs
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_require_scratch_xfs_shrink
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_require_xfs_io_command "falloc"
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rm -f $seqres.full
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_scratch_mkfs_xfs | tee -a $seqres.full | _filter_mkfs 2>$tmp.mkfs >/dev/null
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. $tmp.mkfs # extract blocksize and data size for scratch device
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endsize=`expr 125 \* 1048576` # stop after shrinking this big
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[ `expr $endsize / $dbsize` -lt $dblocks ] || _notrun "Scratch device too small"
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nags=2
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totalcount=$((2 * TIME_FACTOR))
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while [ $totalcount -gt 0 ]; do
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size=`expr 1010 \* 1048576` # 1010 megabytes initially
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logblks=$(_scratch_find_xfs_min_logblocks -dsize=${size} -dagcount=${nags})
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create_scratch -lsize=${logblks}b -dsize=${size} -dagcount=${nags}
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for i in `seq 125 -1 90`; do
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fillsize=`expr $i \* 1048576`
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out="$(fill_scratch $fillsize 2>&1)"
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echo "$out" | grep -q 'No space left on device' && continue
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test -n "${out}" && echo "$out"
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break
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done
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# shrink in chunks of this size at most
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decsize=`expr 41 \* 1048576 + 1 + $RANDOM \* $RANDOM % 1048576`
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while [ $size -gt $endsize ]; do
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stress_scratch &
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sleep 1
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decb=`expr $decsize / $dbsize` # in data blocks
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while [ $decb -gt 0 ]; do
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sizeb=`expr $size / $dbsize - $decb`
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$XFS_GROWFS_PROG -D ${sizeb} $SCRATCH_MNT \
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>> $seqres.full 2>&1 && break
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[ $decb -gt 100 ] && decb=`expr $decb + $RANDOM % 10`
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decb=`expr $decb / 2`
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done
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wait
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[ $decb -eq 0 ] && break
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# get latest dblocks
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$XFS_INFO_PROG $SCRATCH_MNT 2>&1 | _filter_mkfs 2>$tmp.growfs >/dev/null
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. $tmp.growfs
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size=`expr $dblocks \* $dbsize`
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_scratch_unmount
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_scratch_xfs_repair -n >> $seqres.full 2>&1 || \
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_fail "xfs_repair failed with shrinking $sizeb"
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_scratch_mount
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done
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_scratch_unmount
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_scratch_xfs_repair -n >> $seqres.full 2>&1 || \
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_fail "xfs_repair failed with shrinking $sizeb"
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totalcount=`expr $totalcount - 1`
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done
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echo "Silence is golden"
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status=0
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exit
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