Files
apfstests/119
T
Dave Chinner e714acc0ef reduce the number of processes forked
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>
2009-03-25 20:53:36 +01:00

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#! /bin/sh
# FS QA Test No. 119
#
# Leaking reservation space in the GRH
# Test out pv#942130
# This can hang when things aren't working
#
#-----------------------------------------------------------------------
# Copyright (c) 2000-2005 Silicon Graphics, Inc. All Rights Reserved.
#-----------------------------------------------------------------------
#
# creator
owner=tes@crackle.melbourne.sgi.com
seq=`basename $0`
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.*
}
# get standard environment, filters and checks
. ./common.rc
. ./common.filter
# real QA test starts here
# Modify as appropriate.
_supported_fs xfs
_supported_os IRIX Linux
_require_scratch
# this may hang
sync
export MKFS_OPTIONS="-l version=2,size=1200b,su=64k"
export MOUNT_OPTIONS="-o logbsize=64k"
_scratch_mkfs_xfs >/dev/null
_scratch_mount
max=99
i=0
echo "start freezing and unfreezing"
while [ $i -lt $max ]; do
xfs_freeze -f $SCRATCH_MNT
xfs_freeze -u $SCRATCH_MNT
echo -n .
let i=$i+1
done
echo "done"
# success, all done
status=0
exit