mirror of
https://github.com/linux-apfs/apfstests.git
synced 2026-05-01 15:01:44 -07:00
Dave Chinner
e714acc0ef
One of the big cpu time consumers when running xfsqa on UML is forking of new processes. when looping lots of times, using 'expr' to calculate the loop counter increment means we fork at least once every loop. using shell builtins means that we don't fork and many tests run substantially faster. Some tests are even runnable with this modification. e.g. 110 went from taking 4500s to run down to 9s with the loop iterators changed to avoid forking. Signed-off-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
89 lines
1.7 KiB
Bash
Executable File
89 lines
1.7 KiB
Bash
Executable File
#! /bin/sh
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# FS QA Test No. 113
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#
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# aio-stress
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#
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#-----------------------------------------------------------------------
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# Copyright (c) 2005 Silicon Graphics, Inc. All Rights Reserved.
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#-----------------------------------------------------------------------
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#
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# creator
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owner=nathans@sgi.com
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seq=`basename $0`
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=0 # success is the default!
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trap "_cleanup; exit \$status" 0 1 2 3 15
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_cleanup()
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{
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cd /
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rm -f $testdir/aio-stress.$$.*
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_cleanup_testdir
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}
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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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_do_test()
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{
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_n="$1"
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_param="$2"
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_count="$3"
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_nproc="$4"
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_files="$testdir/aiostress.$$.$_n"
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__proc=$_nproc
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[ $__proc -gt 1 ] && _param="-t $__proc $_param"
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while [ $__proc -gt 1 ]; do
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_files="$_files $testdir/aiostress.$$.$_n.$__proc"
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let __proc=$__proc-1
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done
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rm -f $_files
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echo ""
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echo "-----------------------------------------------"
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echo "aio-stress.$_n : $_param"
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echo "-----------------------------------------------"
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if ! $here/ltp/aio-stress $_param $AIOSTRESS_AVOID -I $_count $_files >>$tmp.out 2>&1
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then
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echo " aio-stress (count=$_count) returned $?"
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cat $tmp.out
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status=1
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exit
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fi
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_check_test_fs
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rm -f $_files
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}
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# real QA test starts here
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_supported_os Linux
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[ -x $here/ltp/aio-stress ] || _notrun "aio-stress not built for this platform"
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_setup_testdir
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echo "brevity is wit..."
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count=1000
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procs=20
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_check_test_fs
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# the default
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_do_test 1 "-s 120m" $count 1
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# and the default with multiprocess
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_do_test 2 "-s 10m" $count $procs
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# as above, but now using direct IO
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_do_test 3 "-s 10m -O" $count $procs
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exit
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