| #! /bin/bash |
| # FS QA Test No. 071 |
| # |
| # Exercise IO at large file offsets. |
| #----------------------------------------------------------------------- |
| # Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved. |
| # |
| # This program is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU General Public License as |
| # published by the Free Software Foundation. |
| # |
| # This program is distributed in the hope that it would be useful, |
| # but WITHOUT ANY WARRANTY; without even the implied warranty of |
| # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| # GNU General Public License for more details. |
| # |
| # You should have received a copy of the GNU General Public License |
| # along with this program; if not, write the Free Software Foundation, |
| # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| # |
| #----------------------------------------------------------------------- |
| # |
| |
| seqfull=$0 |
| seq=`basename $0` |
| seqres=$RESULT_DIR/$seq |
| echo "QA output created by $seq" |
| rm -f $seqres.full |
| |
| here=`pwd` |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| |
| _cleanup() |
| { |
| cd / |
| rm -f $tmp.* |
| _scratch_unmount 2>/dev/null |
| } |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| |
| bitsperlong=`src/feature -w` |
| # link correct .out file |
| rm -f $seqfull.out |
| if [ "$bitsperlong" -eq 32 ]; then |
| ln -s $seq.out.32 $seqfull.out |
| else |
| ln -s $seq.out.64 $seqfull.out |
| fi |
| |
| _filter_io() |
| { |
| sed -e "s/$dbsize/1FSB/g" -e '/.* ops; /d' |
| } |
| |
| _filter_off() |
| { |
| sed -e "s/$1/<OFFSET>/g" | _filter_io |
| } |
| |
| _filter_pwrite() |
| { |
| sed -e "s/pwrite.*: Invalid argument/pwrite: File too large/g" |
| } |
| |
| _filter_pread() |
| { |
| sed -e "s/pread.*: Invalid argument/read 0\/$bytes bytes at offset <OFFSET>/g" | _filter_io |
| } |
| |
| write_block() |
| { |
| location=$1 |
| words=$2 |
| offset=$3 |
| bytes=$4 |
| direct=$5 |
| |
| [ `$direct` ] && flags=-d |
| |
| echo "Writing $bytes bytes, offset is $words (direct=$direct)" | _filter_io |
| echo "Writing $bytes bytes at $location $words (direct=$direct)" >>$seqres.full |
| $XFS_IO_PROG -c "pwrite $offset 512" $flags $SCRATCH_MNT/$seq \ |
| 2>&1 | _filter_off $offset | tee -a $seqres.full | _filter_pwrite |
| xfs_bmap -v $SCRATCH_MNT/$seq >>$seqres.full |
| |
| echo "Reading $bytes bytes (direct=$direct)" | _filter_io |
| echo "Reading $bytes bytes at $location (direct=$direct)" >>$seqres.full |
| $XFS_IO_PROG -c "pread $offset $bytes" $flags $SCRATCH_MNT/$seq \ |
| 2>&1 | _filter_off $offset | tee -a $seqres.full | _filter_pread |
| |
| $XFS_IO_PROG -c "pread -v $offset $bytes" $flags $SCRATCH_MNT/$seq >>$seqres.full 2>&1 |
| |
| echo | tee -a $seqres.full |
| } |
| |
| # real QA test starts here |
| _supported_fs xfs |
| _supported_os Linux |
| |
| [ -n "$XFS_IO_PROG" ] || _notrun "xfs_io executable not found" |
| |
| _require_scratch |
| _scratch_mkfs_xfs | _filter_mkfs 2>$tmp.mkfs |
| . $tmp.mkfs |
| echo |
| _scratch_mount |
| |
| # Okay... filesize limit depends on blocksize, bits per long and |
| # also if large block device patch is enabled (can't dynamically |
| # check that, so use env var USE_LBD_PATCH to override default). |
| # |
| # Note: |
| # We check from 1Tb below our guessed limit to 1Tb above it, and |
| # see what happens for each 1Tb increment along the way (first |
| # half should succeed, second half should fail to create a file). |
| # So, number calculated here is not the actual limit, its a ways |
| # above that, hopefully. |
| |
| if [ "$bitsperlong" -eq 32 ]; then |
| upperbound=`expr $dbsize / 512` |
| # which is 8(TB) for 4K, 4(TB) for 2k, ... etc. |
| [ "$USE_LBD_PATCH" = yes ] && upperbound=16 |
| # limited by page cache index when LBD patch onboard. |
| else |
| upperbound=`echo 8 \* 1024 \* 1024 | bc` |
| # 8 exabytes (working in TBs below) |
| fi |
| |
| # Step from (upperbound-1)(Tb) through (upperbound+1(Tb), & |
| # seeks/writes/reads on each boundary (using holey files) - |
| # 1byte back from the boundary, and 1FSB back from the same |
| # boundary (and stash xfs_bmap output), before moving onto |
| # each new test point. |
| |
| $XFS_IO_PROG -c "truncate 0" -f $SCRATCH_MNT/$seq |
| |
| oneTB=`echo 1024 \* 1024 \* 1024 \* 1024 | bc` |
| count=`expr $upperbound - 1` |
| upperbound=`expr $upperbound + 1` |
| |
| while [ $count -le $upperbound ] |
| do |
| # buffered IO |
| offset=`echo $oneTB \* $count | bc` |
| write_block $count "+0" $offset 512 false |
| offset=`echo $oneTB \* $count \- 1 | bc` |
| write_block $count "minus 1 byte" $offset 512 false |
| offset=`echo $oneTB \* $count \- $dbsize | bc` |
| write_block $count "minus 1FSB" $offset 512 false |
| write_block $count "minus 1FSB" $offset 1 false |
| |
| # direct IO |
| offset=`echo $oneTB \* $count | bc` |
| write_block $count "+0" $offset $dbsize true |
| offset=`echo $oneTB \* $count \- 1 | bc` |
| write_block $count "minus 1FSB" $offset $dbsize true |
| |
| echo === Iterating, `expr $upperbound - $count` remains |
| echo |
| echo |
| let count=$count+1 |
| done |
| |
| # success, all done |
| status=0 |
| exit |