4 # Test for prealloc space leaks by rewriting the same file in a loop
6 #-----------------------------------------------------------------------
7 # Copyright (c) 2009 Eric Sandeen. All Rights Reserved.
9 # This program is free software; you can redistribute it and/or
10 # modify it under the terms of the GNU General Public License as
11 # published by the Free Software Foundation.
13 # This program is distributed in the hope that it would be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program; if not, write the Free Software Foundation,
20 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #-----------------------------------------------------------------------
25 owner=sandeen@sandeen.net
28 echo "QA output created by $seq"
32 status=1 # failure is the default!
33 trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
35 # get standard environment, filters and checks
39 _supported_os Linux IRIX
42 # real QA test starts here
45 umount $SCRATCH_DEV 2>/dev/null
46 echo "--> mkfs 256m filesystem"
47 _scratch_mkfs_sized `expr 256 \* 1024 \* 1024` >> $seq.full 2>&1
52 # Buffer size argument supplied to xfs_io "pwrite" command
53 buffer="-b $(expr 512 \* 1024)"
55 echo "--> $loops buffered 64m writes in a loop"
56 for I in `seq 1 $loops`; do
59 -c "pwrite ${buffer} 0 64m" $SCRATCH_MNT/test >> $seq.full
60 rm -f $SCRATCH_MNT/test
67 echo "--> $loops direct 64m writes in a loop"
68 for I in `seq 1 $loops`; do
71 -c "pwrite ${buffer} 0 64m" $SCRATCH_MNT/test >> $seq.full
72 rm -f $SCRATCH_MNT/test