[PATCH 18/23] xfs: test the automatic cowextsize extent garbage collector
From: Darrick J. Wong <hidden>
Date: 2016-02-09 01:13:48
Also in:
linux-btrfs, linux-xfs
Subsystem:
the rest · Maintainer:
Linus Torvalds
Signed-off-by: Darrick J. Wong <redacted> --- tests/xfs/231 | 135 ++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/231.out | 17 +++++++ tests/xfs/232 | 137 +++++++++++++++++++++++++++++++++++++++++++++++++++++ tests/xfs/232.out | 17 +++++++ tests/xfs/group | 2 + 5 files changed, 308 insertions(+) create mode 100755 tests/xfs/231 create mode 100644 tests/xfs/231.out create mode 100755 tests/xfs/232 create mode 100644 tests/xfs/232.out
diff --git a/tests/xfs/231 b/tests/xfs/231
new file mode 100755
index 0000000..d9ae102
--- /dev/null
+++ b/tests/xfs/231@@ -0,0 +1,135 @@ +#! /bin/bash +# FS QA Test No. 231 +# +# Test recovery of unused CoW reservations: +# - Create two reflinked files. Set extsz hint on second file. +# - Dirty a single byte on a number of CoW reservations in the second file. +# - Fsync to flush out the dirty pages. +# - Wait for the reclaim to run. +# - Write more and see how bad fragmentation is. +# +#----------------------------------------------------------------------- +# Copyright (c) 2016, Oracle and/or its affiliates. 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 +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +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 / + echo $old_cow_lifetime > /proc/sys/fs/xfs/speculative_cow_prealloc_lifetime + #rm -rf "$tmp".* "$testdir" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch_reflink +_require_cp_reflink +_require_fiemap + +old_cow_lifetime=$(cat /proc/sys/fs/xfs/speculative_cow_prealloc_lifetime) + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +testdir="$SCRATCH_MNT/test-$seq" +rm -rf $testdir +mkdir $testdir + +blksz=65536 +nr=64 +bsz=2 + +free_blocks=$(stat -f -c '%a' "$testdir") +real_blksz=$(stat -f -c '%S' "$testdir") +space_needed=$(((blksz * nr * 3) * 5 / 4)) +space_avail=$((free_blocks * real_blksz)) +internal_blks=$((blksz * nr / real_blksz)) +test $space_needed -gt $space_avail && _notrun "Not enough space. $space_avail < $space_needed" + +echo "Create the original files" +"$XFS_IO_PROG" -c "cowextsize $((blksz * bsz))" "$testdir" +"$XFS_IO_PROG" -f -c "pwrite -S 0x61 -b $((blksz * bsz)) 0 $((blksz * nr))" "$testdir/file1" >> "$seqres.full" +"$XFS_IO_PROG" -f -c "pwrite -S 0x61 -b $((blksz * bsz)) 0 $((blksz * nr))" "$testdir/file2.chk" >> "$seqres.full" +_cp_reflink "$testdir/file1" "$testdir/file2" >> "$seqres.full" +_scratch_remount + +echo "Compare files" +md5sum "$testdir/file1" | _filter_scratch +md5sum "$testdir/file2" | _filter_scratch +md5sum "$testdir/file2.chk" | _filter_scratch + +echo "CoW and leave leftovers" +echo 2 > /proc/sys/fs/xfs/speculative_cow_prealloc_lifetime +seq 2 2 $((nr - 1)) | while read f; do + "$XFS_IO_PROG" -f -c "pwrite -S 0x63 $((blksz * f - 1)) 1" "$testdir/file2" >> "$seqres.full" + "$XFS_IO_PROG" -f -c "pwrite -S 0x63 $((blksz * f - 1)) 1" "$testdir/file2.chk" >> "$seqres.full" +done +sync + +echo "Wait for CoW expiration" +sleep 3 + +echo "Allocate free space" +for i in $(seq 1 32); do + "$XFS_IO_PROG" -f -c "falloc 0 1" "$testdir/junk.$i" >> "$seqres.full" +done +"$XFS_IO_PROG" -f -c "falloc 0 $((blksz * nr))" "$testdir/junk" >> "$seqres.full" + +echo "CoW and leave leftovers" +echo $old_cow_lifetime > /proc/sys/fs/xfs/speculative_cow_prealloc_lifetime +seq 2 2 $((nr - 1)) | while read f; do + "$XFS_IO_PROG" -f -c "pwrite -S 0x63 $((blksz * f)) 1" "$testdir/file2" >> "$seqres.full" + "$XFS_IO_PROG" -f -c "pwrite -S 0x63 $((blksz * f)) 1" "$testdir/file2.chk" >> "$seqres.full" +done +sync + +echo "Compare files" +md5sum "$testdir/file1" | _filter_scratch +md5sum "$testdir/file2" | _filter_scratch +md5sum "$testdir/file2.chk" | _filter_scratch + +echo "Check extent counts" +old_extents=$(_count_extents "$testdir/file1") +new_extents=$(_count_extents "$testdir/file2") + +echo "old extents: $old_extents" >> "$seqres.full" +echo "new extents: $new_extents" >> "$seqres.full" +echo "maximum extents: $internal_blks" >> "$seqres.full" +test $new_extents -lt $((internal_blks / 7)) || _fail "file2 badly fragmented" + +echo "Check for damage" +umount "$SCRATCH_MNT" + +# success, all done +status=0 +exit
diff --git a/tests/xfs/231.out b/tests/xfs/231.out
new file mode 100644
index 0000000..872ce7b
--- /dev/null
+++ b/tests/xfs/231.out@@ -0,0 +1,17 @@ +QA output created by 231 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-231/file1 +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-231/file2 +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-231/file2.chk +CoW and leave leftovers +Wait for CoW expiration +Allocate free space +CoW and leave leftovers +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-231/file1 +211b0f725e67149d75104a747365eb70 SCRATCH_MNT/test-231/file2 +211b0f725e67149d75104a747365eb70 SCRATCH_MNT/test-231/file2.chk +Check extent counts +Check for damage
diff --git a/tests/xfs/232 b/tests/xfs/232
new file mode 100755
index 0000000..1cbc791
--- /dev/null
+++ b/tests/xfs/232@@ -0,0 +1,137 @@ +#! /bin/bash +# FS QA Test No. 232 +# +# Test non-recovery of unused CoW reservations for dirty files: +# - Create two reflinked files. Set extsz hint on second file. +# - Dirty a single byte on a number of CoW reservations in the second file. +# - Fsync to flush out the dirty pages. +# - Dirty a single byte anywhere in the second file. +# - Wait for the reclaim to run. +# - Write more and see how bad fragmentation is. +# +#----------------------------------------------------------------------- +# Copyright (c) 2016, Oracle and/or its affiliates. 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 +#----------------------------------------------------------------------- + +seq=`basename "$0"` +seqres="$RESULT_DIR/$seq" +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 / + echo $old_cow_lifetime > /proc/sys/fs/xfs/speculative_cow_prealloc_lifetime + #rm -rf "$tmp".* "$testdir" +} + +# get standard environment, filters and checks +. ./common/rc +. ./common/filter +. ./common/reflink + +# real QA test starts here +_supported_os Linux +_supported_fs xfs +_require_scratch_reflink +_require_cp_reflink +_require_fiemap + +old_cow_lifetime=$(cat /proc/sys/fs/xfs/speculative_cow_prealloc_lifetime) + +rm -f "$seqres.full" + +echo "Format and mount" +_scratch_mkfs > "$seqres.full" 2>&1 +_scratch_mount >> "$seqres.full" 2>&1 + +testdir="$SCRATCH_MNT/test-$seq" +rm -rf $testdir +mkdir $testdir + +blksz=65536 +nr=64 +bsz=2 + +free_blocks=$(stat -f -c '%a' "$testdir") +real_blksz=$(stat -f -c '%S' "$testdir") +space_needed=$(((blksz * nr * 3) * 5 / 4)) +space_avail=$((free_blocks * real_blksz)) +internal_blks=$((blksz * nr / real_blksz)) +test $space_needed -gt $space_avail && _notrun "Not enough space. $space_avail < $space_needed" + +echo "Create the original files" +"$XFS_IO_PROG" -c "cowextsize $((blksz * bsz))" "$testdir" +"$XFS_IO_PROG" -f -c "pwrite -S 0x61 -b $((blksz * bsz)) 0 $((blksz * nr))" "$testdir/file1" >> "$seqres.full" +"$XFS_IO_PROG" -f -c "pwrite -S 0x61 -b $((blksz * bsz)) 0 $((blksz * nr))" "$testdir/file2.chk" >> "$seqres.full" +_cp_reflink "$testdir/file1" "$testdir/file2" >> "$seqres.full" +_scratch_remount + +echo "Compare files" +md5sum "$testdir/file1" | _filter_scratch +md5sum "$testdir/file2" | _filter_scratch +md5sum "$testdir/file2.chk" | _filter_scratch + +echo "CoW and leave leftovers" +echo 2 > /proc/sys/fs/xfs/speculative_cow_prealloc_lifetime +seq 2 2 $((nr - 1)) | while read f; do + "$XFS_IO_PROG" -f -c "pwrite -S 0x63 $((blksz * f - 1)) 1" "$testdir/file2" >> "$seqres.full" + "$XFS_IO_PROG" -f -c "pwrite -S 0x63 $((blksz * f - 1)) 1" "$testdir/file2.chk" >> "$seqres.full" +done +sync + +echo "Wait for CoW expiration" +"$XFS_IO_PROG" -f -c "pwrite -S 0x63 $((blksz * 2)) 1" "$testdir/file2" >> "$seqres.full" +sleep 3 + +echo "Allocate free space" +for i in $(seq 1 32); do + "$XFS_IO_PROG" -f -c "falloc 0 1" "$testdir/junk.$i" >> "$seqres.full" +done +"$XFS_IO_PROG" -f -c "falloc 0 $((blksz * nr))" "$testdir/junk" >> "$seqres.full" + +echo "CoW and leave leftovers" +echo $old_cow_lifetime > /proc/sys/fs/xfs/speculative_cow_prealloc_lifetime +seq 2 2 $((nr - 1)) | while read f; do + "$XFS_IO_PROG" -f -c "pwrite -S 0x63 $((blksz * f)) 1" "$testdir/file2" >> "$seqres.full" + "$XFS_IO_PROG" -f -c "pwrite -S 0x63 $((blksz * f)) 1" "$testdir/file2.chk" >> "$seqres.full" +done +sync + +echo "Compare files" +md5sum "$testdir/file1" | _filter_scratch +md5sum "$testdir/file2" | _filter_scratch +md5sum "$testdir/file2.chk" | _filter_scratch + +echo "Check extent counts" +old_extents=$(_count_extents "$testdir/file1") +new_extents=$(_count_extents "$testdir/file2") + +echo "old extents: $old_extents" >> "$seqres.full" +echo "new extents: $new_extents" >> "$seqres.full" +echo "maximum extents: $internal_blks" >> "$seqres.full" +test $new_extents -lt $((internal_blks / 12)) || _fail "file2 not sufficiently fragmented" + +echo "Check for damage" +umount "$SCRATCH_MNT" + +# success, all done +status=0 +exit
diff --git a/tests/xfs/232.out b/tests/xfs/232.out
new file mode 100644
index 0000000..ccabdaa
--- /dev/null
+++ b/tests/xfs/232.out@@ -0,0 +1,17 @@ +QA output created by 232 +Format and mount +Create the original files +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-232/file1 +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-232/file2 +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-232/file2.chk +CoW and leave leftovers +Wait for CoW expiration +Allocate free space +CoW and leave leftovers +Compare files +bdbcf02ee0aa977795a79d25fcfdccb1 SCRATCH_MNT/test-232/file1 +211b0f725e67149d75104a747365eb70 SCRATCH_MNT/test-232/file2 +211b0f725e67149d75104a747365eb70 SCRATCH_MNT/test-232/file2.chk +Check extent counts +Check for damage
diff --git a/tests/xfs/group b/tests/xfs/group
index da83274..de3c7d6 100644
--- a/tests/xfs/group
+++ b/tests/xfs/group@@ -228,6 +228,8 @@ 228 auto quick clone 229 auto rw 230 auto quick clone +231 auto quick clone +232 auto quick clone 238 auto quick metadata ioctl 242 auto quick prealloc 244 auto quota quick