On Wed, Jun 20, 2018 at 04:41:14PM +0800, Zorro Lang wrote:
> Run several duperemove processes with fsstress on same directory at
> same time. Make sure the race won't break the fs or kernel.
>
> Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx>
> ---
>
> V2 did below changes:
> 1) do sleep 1 after kill processes
> 2) change SLEEP_TIME to sleep_time
> 3) add the case to stress group
>
> Thanks,
> Zorro
>
> tests/shared/010 | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++
> tests/shared/010.out | 2 +
> tests/shared/group | 1 +
> 3 files changed, 114 insertions(+)
> create mode 100755 tests/shared/010
> create mode 100644 tests/shared/010.out
>
> diff --git a/tests/shared/010 b/tests/shared/010
> new file mode 100755
> index 00000000..c449c247
> --- /dev/null
> +++ b/tests/shared/010
> @@ -0,0 +1,111 @@
> +#! /bin/bash
> +# FS QA Test 010
> +#
> +# Dedup & random I/O race test, do multi-threads fsstress and dedupe on
> +# same directory/files
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2018 Red Hat Inc. All Rights Reserved.
> +#
> +# This program is free software; you can redistribute it and/or
> +# modify it under the terms of the GNU General Public License as
> +# published by the Free Software Foundation.
> +#
> +# This program is distributed in the hope that it would be useful,
> +# but WITHOUT ANY WARRANTY; without even the implied warranty of
> +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> +# GNU General Public License for more details.
> +#
> +# You should have received a copy of the GNU General Public License
> +# along with this program; if not, write the Free Software Foundation,
> +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
> +#-----------------------------------------------------------------------
> +#
> +
> +seq=`basename $0`
> +seqres=$RESULT_DIR/$seq
> +echo "QA output created by $seq"
> +
> +here=`pwd`
> +tmp=/tmp/$$
> +status=1 # failure is the default!
> +trap "_cleanup; exit \$status" 0 1 2 3 15
> +
> +_cleanup()
> +{
> + cd /
> + rm -f $tmp.*
> + kill_all_stress
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +. ./common/reflink
> +
> +# remove previous $seqres.full before test
> +rm -f $seqres.full
> +
> +# real QA test starts here
> +
> +# duperemove only supports btrfs and xfs (with reflink feature).
> +# Add other filesystems if it supports more later.
> +_supported_fs xfs btrfs
> +_supported_os Linux
> +_require_scratch_dedupe
> +_require_command "$DUPEREMOVE_PROG" duperemove
> +_require_command "$KILLALL_PROG" killall
> +
> +_scratch_mkfs > $seqres.full 2>&1
> +_scratch_mount >> $seqres.full 2>&1
> +
> +function kill_all_stress()
> +{
> + local f=1
> + local d=1
> +
> + # kill the bash process which loop run duperemove
> + if [ -n "$loop_dedup_pid" ]; then
> + kill $loop_dedup_pid > /dev/null 2>&1
> + wait $loop_dedup_pid > /dev/null 2>&1
> + loop_dedup_pid=""
> + fi
> +
> + # Make sure all fsstress and duperemove processes get killed
> + while [ $((f + d)) -ne 0 ]; do
> + $KILLALL_PROG -q $FSSTRESS_PROG > /dev/null 2>&1
> + $KILLALL_PROG -q $DUPEREMOVE_PROG > /dev/null 2>&1
> + sleep 1
> + f=`ps -eLf | grep $FSSTRESS_PROG | grep -v "grep" | wc -l`
> + d=`ps -eLf | grep $DUPEREMOVE_PROG | grep -v "grep" | wc -l`
> + done
> +}
> +
> +sleep_time=$((50 * TIME_FACTOR))
> +
> +# Start fsstress
> +fsstress_opts="-r -n 1000 -p $((5 * LOAD_FACTOR))"
> +$FSSTRESS_PROG $fsstress_opts -d $SCRATCH_MNT -l 0 >> $seqres.full 2>&1 &
> +loop_dedup_pid=""
> +# Start several dedupe processes on same directory
> +for ((i = 0; i < $((2 * LOAD_FACTOR)); i++)); do
> + while true; do
> + $DUPEREMOVE_PROG -dr --dedupe-options=same $SCRATCH_MNT/ \
> + >>$seqres.full 2>&1
/me wonders why not just touch $TEST_DIR/run, have this loop do:
while test -e $TEST_DIR/run; do
duperemove...
done
and then rm -f $TEST_DIR/run to end the loop? Then you don't need the
complex machinery to shut down the bash loop and kill the fsstress and
duperemove processes.
Otherwise looks decent,
--D
> + done &
> + loop_dedup_pid="$! $loop_dedup_pid"
> +done
> +
> +# End the test after $sleep_time seconds
> +sleep $sleep_time
> +kill_all_stress
> +
> +# umount and mount again, verify pagecache contents don't mutate and a fresh
> +# read from the disk also doesn't show mutations.
> +find $testdir -type f -exec md5sum {} \; > $TEST_DIR/${seq}md5.sum
> +_scratch_cycle_mount
> +md5sum -c --quiet $TEST_DIR/${seq}md5.sum
> +
> +echo "Silence is golden"
> +status=0
> +exit
> diff --git a/tests/shared/010.out b/tests/shared/010.out
> new file mode 100644
> index 00000000..1d83a8d6
> --- /dev/null
> +++ b/tests/shared/010.out
> @@ -0,0 +1,2 @@
> +QA output created by 010
> +Silence is golden
> diff --git a/tests/shared/group b/tests/shared/group
> index 9c484794..094da27d 100644
> --- a/tests/shared/group
> +++ b/tests/shared/group
> @@ -12,6 +12,7 @@
> 007 dangerous_fuzzers
> 008 auto stress dedupe
> 009 auto stress dedupe
> +010 auto stress dedupe
> 032 mkfs auto quick
> 272 auto enospc rw
> 289 auto quick
> --
> 2.14.4
>
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