4 # Exercise IO at large file offsets.
5 #-----------------------------------------------------------------------
6 # Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved.
8 # This program is free software; you can redistribute it and/or
9 # modify it under the terms of the GNU General Public License as
10 # published by the Free Software Foundation.
12 # This program is distributed in the hope that it would be useful,
13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 # GNU General Public License for more details.
17 # You should have received a copy of the GNU General Public License
18 # along with this program; if not, write the Free Software Foundation,
19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 #-----------------------------------------------------------------------
26 seqres=$RESULT_DIR/$seq
27 echo "QA output created by $seq"
32 status=1 # failure is the default!
38 _scratch_unmount 2>/dev/null
40 trap "_cleanup; exit \$status" 0 1 2 3 15
42 # get standard environment, filters and checks
46 bitsperlong=`src/feature -w`
47 # link correct .out file
49 if [ "$bitsperlong" -eq 32 ]; then
50 ln -s $seq.out.32 $seqfull.out
52 ln -s $seq.out.64 $seqfull.out
57 sed -e "s/$dbsize/1FSB/g" -e '/.* ops; /d'
62 sed -e "s/$1/<OFFSET>/g" | _filter_io
67 sed -e "s/pwrite64: Invalid argument/pwrite64: File too large/g"
72 sed -e "s/pread64: Invalid argument/read 0\/$bytes bytes at offset <OFFSET>/g" | _filter_io
83 [ `$direct` ] && flags=-d
85 echo "Writing $bytes bytes, offset is $words (direct=$direct)" | _filter_io
86 echo "Writing $bytes bytes at $location $words (direct=$direct)" >>$seqres.full
87 $XFS_IO_PROG -c "pwrite $offset 512" $flags $SCRATCH_MNT/$seq \
88 2>&1 | _filter_off $offset | tee -a $seqres.full | _filter_pwrite
89 xfs_bmap -v $SCRATCH_MNT/$seq >>$seqres.full
91 echo "Reading $bytes bytes (direct=$direct)" | _filter_io
92 echo "Reading $bytes bytes at $location (direct=$direct)" >>$seqres.full
93 $XFS_IO_PROG -c "pread $offset $bytes" $flags $SCRATCH_MNT/$seq \
94 2>&1 | _filter_off $offset | tee -a $seqres.full | _filter_pread
96 $XFS_IO_PROG -c "pread -v $offset $bytes" $flags $SCRATCH_MNT/$seq >>$seqres.full 2>&1
98 echo | tee -a $seqres.full
101 # real QA test starts here
103 _supported_os IRIX Linux
105 [ -n "$XFS_IO_PROG" ] || _notrun "xfs_io executable not found"
108 _scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs
113 # Okay... filesize limit depends on blocksize, bits per long and
114 # also if large block device patch is enabled (can't dynamically
115 # check that, so use env var USE_LBD_PATCH to override default).
118 # We check from 1Tb below our guessed limit to 1Tb above it, and
119 # see what happens for each 1Tb increment along the way (first
120 # half should succeed, second half should fail to create a file).
121 # So, number calculated here is not the actual limit, its a ways
122 # above that, hopefully.
124 if [ "$bitsperlong" -eq 32 ]; then
125 upperbound=`expr $dbsize / 512`
126 # which is 8(TB) for 4K, 4(TB) for 2k, ... etc.
127 [ "$USE_LBD_PATCH" = yes ] && upperbound=16
128 # limited by page cache index when LBD patch onboard.
130 upperbound=`echo 8 \* 1024 \* 1024 | bc`
131 # 8 exabytes (working in TBs below)
134 # Step from (upperbound-1)(Tb) through (upperbound+1(Tb), &
135 # seeks/writes/reads on each boundary (using holey files) -
136 # 1byte back from the boundary, and 1FSB back from the same
137 # boundary (and stash xfs_bmap output), before moving onto
138 # each new test point.
140 $XFS_IO_PROG -c "truncate 0" -f $SCRATCH_MNT/$seq
142 oneTB=`echo 1024 \* 1024 \* 1024 \* 1024 | bc`
143 count=`expr $upperbound - 1`
144 upperbound=`expr $upperbound + 1`
146 while [ $count -le $upperbound ]
149 offset=`echo $oneTB \* $count | bc`
150 write_block $count "+0" $offset 512 false
151 offset=`echo $oneTB \* $count \- 1 | bc`
152 write_block $count "minus 1 byte" $offset 512 false
153 offset=`echo $oneTB \* $count \- $dbsize | bc`
154 write_block $count "minus 1FSB" $offset 512 false
155 write_block $count "minus 1FSB" $offset 1 false
158 offset=`echo $oneTB \* $count | bc`
159 write_block $count "+0" $offset $dbsize true
160 offset=`echo $oneTB \* $count \- 1 | bc`
161 write_block $count "minus 1FSB" $offset $dbsize true
163 echo === Iterating, `expr $upperbound - $count` remains