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 #-----------------------------------------------------------------------
26 echo "QA output created by $seq"
30 status=1 # failure is the default!
31 trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
33 # get standard environment, filters and checks
37 _supported_os Linux IRIX
40 # real QA test starts here
43 umount $SCRATCH_DEV 2>/dev/null
44 echo "--> mkfs 256m filesystem"
45 _scratch_mkfs_sized `expr 256 \* 1024 \* 1024` >> $seq.full 2>&1
50 # Buffer size argument supplied to xfs_io "pwrite" command
51 buffer="-b $(expr 512 \* 1024)"
53 echo "--> $loops buffered 64m writes in a loop"
54 for I in `seq 1 $loops`; do
57 -c "pwrite ${buffer} 0 64m" $SCRATCH_MNT/test >> $seq.full
58 rm -f $SCRATCH_MNT/test
65 echo "--> $loops direct 64m writes in a loop"
66 for I in `seq 1 $loops`; do
69 -c "pwrite ${buffer} 0 64m" $SCRATCH_MNT/test >> $seq.full
70 rm -f $SCRATCH_MNT/test