diff mbox

[1/3] fstests: btrfs: Add basic test for btrfs in-band de-duplication

Message ID 20170316015028.20020-2-quwenruo@cn.fujitsu.com (mailing list archive)
State Not Applicable
Headers show

Commit Message

Qu Wenruo March 16, 2017, 1:50 a.m. UTC
Add basic test for btrfs in-band de-duplication(inmemory backend), including:
1) Enable
3) Dedup rate
4) File correctness
5) Disable

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
---
 common/defrag       |  13 ++++++
 tests/btrfs/200     | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/btrfs/200.out |  22 ++++++++++
 tests/btrfs/group   |   2 +
 4 files changed, 153 insertions(+)
 create mode 100755 tests/btrfs/200
 create mode 100644 tests/btrfs/200.out

Comments

Eryu Guan March 16, 2017, 8:08 a.m. UTC | #1
On Thu, Mar 16, 2017 at 09:50:25AM +0800, Qu Wenruo wrote:
> Add basic test for btrfs in-band de-duplication(inmemory backend), including:
> 1) Enable
> 3) Dedup rate
> 4) File correctness
> 5) Disable
> 
> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>

I haven't looked into this patchset closely, this may need more help
from other btrfs developers. Some comments from my first round
eyeballing review :)

> ---
>  common/defrag       |  13 ++++++
>  tests/btrfs/200     | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>  tests/btrfs/200.out |  22 ++++++++++
>  tests/btrfs/group   |   2 +
>  4 files changed, 153 insertions(+)
>  create mode 100755 tests/btrfs/200
>  create mode 100644 tests/btrfs/200.out
> 
> diff --git a/common/defrag b/common/defrag
> index d279382f..0a41714f 100644
> --- a/common/defrag
> +++ b/common/defrag
> @@ -59,6 +59,19 @@ _extent_count()
>  	$XFS_IO_PROG -c "fiemap" $1 | tail -n +2 | grep -v hole | wc -l| $AWK_PROG '{print $1}'
>  }
>  
> +# Get the number of unique file extents
> +# Unique file extents means they have different ondisk bytenr
> +# Some filesystem supports reflinkat() or in-band de-dup can create
> +# a file whose all file extents points to the same ondisk bytenr
> +# this can be used to test if such reflinkat() or in-band de-dup works
> +_extent_count_uniq()
> +{
> +	file=$1

Declare local vars as "local".

> +	$XFS_IO_PROG -c "fiemap" $file >> $seqres.full 2>&1
> +	$XFS_IO_PROG -c "fiemap" $file | tail -n +2 | grep -v hole |\
> +		$AWK_PROG '{print $3}' | sort | uniq | wc -l
> +}
> +
>  _check_extent_count()
>  {
>  	min=$1
> diff --git a/tests/btrfs/200 b/tests/btrfs/200
> new file mode 100755
> index 00000000..1b3e46fd
> --- /dev/null
> +++ b/tests/btrfs/200
> @@ -0,0 +1,116 @@
> +#! /bin/bash
> +# FS QA Test 200
> +#
> +# Basic btrfs inband dedupe test for inmemory backend
> +#
> +#-----------------------------------------------------------------------
> +# Copyright (c) 2016 Fujitsu.  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 /
> +	rm -f $tmp.*
> +}
> +
> +# get standard environment, filters and checks
> +. ./common/rc
> +. ./common/filter
> +. ./common/defrag
> +
> +# remove previous $seqres.full before test
> +rm -f $seqres.full
> +
> +# real QA test starts here
> +
> +_supported_fs btrfs
> +_supported_os Linux
> +_require_scratch
> +_require_btrfs_command dedupe
> +_require_btrfs_fs_feature dedupe
> +
> +# File size is twice the maximum file extent of btrfs
> +# So even fallbacked to non-dedupe, it will have at least 2 extents
> +file_size=256m
> +
> +_scratch_mkfs >> $seqres.full 2>&1
> +_scratch_mount
> +
> +do_dedupe_test()
> +{
> +	dedupe_bs=$1
> +
> +	echo "Testing inmemory dedupe backend with block size $dedupe_bs"
> +	_run_btrfs_util_prog dedupe enable -f -s inmemory -b $dedupe_bs \
> +		$SCRATCH_MNT
> +	# do sync write to ensure dedupe hash is added into dedupe pool
> +	$XFS_IO_PROG -f -c "pwrite -b $dedupe_bs 0 $dedupe_bs" -c "fsync"\
> +		$SCRATCH_MNT/initial_block | _filter_xfs_io
> +
> +	# do sync write to ensure we can get stable fiemap later
> +	$XFS_IO_PROG -f -c "pwrite -b $dedupe_bs 0 $file_size" -c "fsync"\
> +		$SCRATCH_MNT/real_file | _filter_xfs_io
> +
> +	# Test if real_file is de-duplicated
> +	nr_uniq_extents=$(_extent_count_uniq $SCRATCH_MNT/real_file)
> +	nr_total_extents=$(_extent_count $SCRATCH_MNT/real_file)
> +	nr_deduped_extents=$(($nr_total_extents - $nr_uniq_extents))
> +
> +	echo "deduped/total: $nr_deduped_extents/$nr_total_extents" \
> +		>> $seqres.full
> +	# Allow a small amount of dedupe miss, as commit interval or
> +	# memory pressure may break a dedupe_bs block and cause
> +	# small extent which won't go through dedupe routine
> +	_within_tolerance "number of deduped extents" $nr_deduped_extents \
> +		$nr_total_extents 5% -v
> +
> +	# Also check the md5sum to ensure data is not corrupted
> +	md5=$(_md5_checksum $SCRATCH_MNT/real_file)
> +	echo "md5sum: $md5"
> +}
> +
> +# Test inmemory dedupe first, use 64K dedupe bs to keep compatibility
> +# with 64K page size
> +do_dedupe_test 64K
> +
> +# Test 128K(default) dedupe bs
> +do_dedupe_test 128K
> +
> +# Test 1M dedupe bs
> +do_dedupe_test 1M
> +
> +# Check dedupe disable
> +_run_btrfs_util_prog dedupe disable $SCRATCH_MNT
> +
> +# success, all done
> +status=0
> +exit
> +# Check dedupe disable
> +_run_btrfs_util_prog dedupe disable $SCRATCH_MNT
> +
> +# success, all done
> +status=0
> +exit

Double "dedupe disable" and "exit".

> diff --git a/tests/btrfs/200.out b/tests/btrfs/200.out
> new file mode 100644
> index 00000000..e09e5733
> --- /dev/null
> +++ b/tests/btrfs/200.out
> @@ -0,0 +1,22 @@
> +QA output created by 200
> +Testing inmemory dedupe backend with block size 64K
> +wrote 65536/65536 bytes at offset 0
> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +wrote 268435456/268435456 bytes at offset 0
> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +number of deduped extents is in range
> +md5sum: a30e0f3f1b0884081de11d4357811c2e
> +Testing inmemory dedupe backend with block size 128K
> +wrote 131072/131072 bytes at offset 0
> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +wrote 268435456/268435456 bytes at offset 0
> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +number of deduped extents is in range
> +md5sum: a30e0f3f1b0884081de11d4357811c2e
> +Testing inmemory dedupe backend with block size 1M
> +wrote 1048576/1048576 bytes at offset 0
> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +wrote 268435456/268435456 bytes at offset 0
> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
> +number of deduped extents is in range
> +md5sum: a30e0f3f1b0884081de11d4357811c2e
> diff --git a/tests/btrfs/group b/tests/btrfs/group
> index 76a1181e..bf001d3c 100644
> --- a/tests/btrfs/group
> +++ b/tests/btrfs/group
> @@ -125,6 +125,7 @@
>  120 auto quick snapshot metadata
>  121 auto quick snapshot qgroup
>  122 auto quick snapshot qgroup
> +<<<<<<< HEAD

Leftover from resolving conflicts?

Thanks,
Eryu

>  123 auto quick qgroup
>  124 auto replace
>  125 auto replace
> @@ -141,3 +142,4 @@
>  136 auto convert
>  137 auto quick send
>  138 auto compress
> +200 auto ib-dedupe
> -- 
> 2.12.0
> 
> 
> 
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Qu Wenruo March 16, 2017, 8:33 a.m. UTC | #2
At 03/16/2017 04:08 PM, Eryu Guan wrote:
> On Thu, Mar 16, 2017 at 09:50:25AM +0800, Qu Wenruo wrote:
>> Add basic test for btrfs in-band de-duplication(inmemory backend), including:
>> 1) Enable
>> 3) Dedup rate
>> 4) File correctness
>> 5) Disable
>>
>> Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
>
> I haven't looked into this patchset closely, this may need more help
> from other btrfs developers. Some comments from my first round
> eyeballing review :)

Thanks for the review.

I'll update the patchset.

Thanks,
Qu
>
>> ---
>>  common/defrag       |  13 ++++++
>>  tests/btrfs/200     | 116 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>>  tests/btrfs/200.out |  22 ++++++++++
>>  tests/btrfs/group   |   2 +
>>  4 files changed, 153 insertions(+)
>>  create mode 100755 tests/btrfs/200
>>  create mode 100644 tests/btrfs/200.out
>>
>> diff --git a/common/defrag b/common/defrag
>> index d279382f..0a41714f 100644
>> --- a/common/defrag
>> +++ b/common/defrag
>> @@ -59,6 +59,19 @@ _extent_count()
>>  	$XFS_IO_PROG -c "fiemap" $1 | tail -n +2 | grep -v hole | wc -l| $AWK_PROG '{print $1}'
>>  }
>>
>> +# Get the number of unique file extents
>> +# Unique file extents means they have different ondisk bytenr
>> +# Some filesystem supports reflinkat() or in-band de-dup can create
>> +# a file whose all file extents points to the same ondisk bytenr
>> +# this can be used to test if such reflinkat() or in-band de-dup works
>> +_extent_count_uniq()
>> +{
>> +	file=$1
>
> Declare local vars as "local".
>
>> +	$XFS_IO_PROG -c "fiemap" $file >> $seqres.full 2>&1
>> +	$XFS_IO_PROG -c "fiemap" $file | tail -n +2 | grep -v hole |\
>> +		$AWK_PROG '{print $3}' | sort | uniq | wc -l
>> +}
>> +
>>  _check_extent_count()
>>  {
>>  	min=$1
>> diff --git a/tests/btrfs/200 b/tests/btrfs/200
>> new file mode 100755
>> index 00000000..1b3e46fd
>> --- /dev/null
>> +++ b/tests/btrfs/200
>> @@ -0,0 +1,116 @@
>> +#! /bin/bash
>> +# FS QA Test 200
>> +#
>> +# Basic btrfs inband dedupe test for inmemory backend
>> +#
>> +#-----------------------------------------------------------------------
>> +# Copyright (c) 2016 Fujitsu.  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 /
>> +	rm -f $tmp.*
>> +}
>> +
>> +# get standard environment, filters and checks
>> +. ./common/rc
>> +. ./common/filter
>> +. ./common/defrag
>> +
>> +# remove previous $seqres.full before test
>> +rm -f $seqres.full
>> +
>> +# real QA test starts here
>> +
>> +_supported_fs btrfs
>> +_supported_os Linux
>> +_require_scratch
>> +_require_btrfs_command dedupe
>> +_require_btrfs_fs_feature dedupe
>> +
>> +# File size is twice the maximum file extent of btrfs
>> +# So even fallbacked to non-dedupe, it will have at least 2 extents
>> +file_size=256m
>> +
>> +_scratch_mkfs >> $seqres.full 2>&1
>> +_scratch_mount
>> +
>> +do_dedupe_test()
>> +{
>> +	dedupe_bs=$1
>> +
>> +	echo "Testing inmemory dedupe backend with block size $dedupe_bs"
>> +	_run_btrfs_util_prog dedupe enable -f -s inmemory -b $dedupe_bs \
>> +		$SCRATCH_MNT
>> +	# do sync write to ensure dedupe hash is added into dedupe pool
>> +	$XFS_IO_PROG -f -c "pwrite -b $dedupe_bs 0 $dedupe_bs" -c "fsync"\
>> +		$SCRATCH_MNT/initial_block | _filter_xfs_io
>> +
>> +	# do sync write to ensure we can get stable fiemap later
>> +	$XFS_IO_PROG -f -c "pwrite -b $dedupe_bs 0 $file_size" -c "fsync"\
>> +		$SCRATCH_MNT/real_file | _filter_xfs_io
>> +
>> +	# Test if real_file is de-duplicated
>> +	nr_uniq_extents=$(_extent_count_uniq $SCRATCH_MNT/real_file)
>> +	nr_total_extents=$(_extent_count $SCRATCH_MNT/real_file)
>> +	nr_deduped_extents=$(($nr_total_extents - $nr_uniq_extents))
>> +
>> +	echo "deduped/total: $nr_deduped_extents/$nr_total_extents" \
>> +		>> $seqres.full
>> +	# Allow a small amount of dedupe miss, as commit interval or
>> +	# memory pressure may break a dedupe_bs block and cause
>> +	# small extent which won't go through dedupe routine
>> +	_within_tolerance "number of deduped extents" $nr_deduped_extents \
>> +		$nr_total_extents 5% -v
>> +
>> +	# Also check the md5sum to ensure data is not corrupted
>> +	md5=$(_md5_checksum $SCRATCH_MNT/real_file)
>> +	echo "md5sum: $md5"
>> +}
>> +
>> +# Test inmemory dedupe first, use 64K dedupe bs to keep compatibility
>> +# with 64K page size
>> +do_dedupe_test 64K
>> +
>> +# Test 128K(default) dedupe bs
>> +do_dedupe_test 128K
>> +
>> +# Test 1M dedupe bs
>> +do_dedupe_test 1M
>> +
>> +# Check dedupe disable
>> +_run_btrfs_util_prog dedupe disable $SCRATCH_MNT
>> +
>> +# success, all done
>> +status=0
>> +exit
>> +# Check dedupe disable
>> +_run_btrfs_util_prog dedupe disable $SCRATCH_MNT
>> +
>> +# success, all done
>> +status=0
>> +exit
>
> Double "dedupe disable" and "exit".
>
>> diff --git a/tests/btrfs/200.out b/tests/btrfs/200.out
>> new file mode 100644
>> index 00000000..e09e5733
>> --- /dev/null
>> +++ b/tests/btrfs/200.out
>> @@ -0,0 +1,22 @@
>> +QA output created by 200
>> +Testing inmemory dedupe backend with block size 64K
>> +wrote 65536/65536 bytes at offset 0
>> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>> +wrote 268435456/268435456 bytes at offset 0
>> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>> +number of deduped extents is in range
>> +md5sum: a30e0f3f1b0884081de11d4357811c2e
>> +Testing inmemory dedupe backend with block size 128K
>> +wrote 131072/131072 bytes at offset 0
>> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>> +wrote 268435456/268435456 bytes at offset 0
>> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>> +number of deduped extents is in range
>> +md5sum: a30e0f3f1b0884081de11d4357811c2e
>> +Testing inmemory dedupe backend with block size 1M
>> +wrote 1048576/1048576 bytes at offset 0
>> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>> +wrote 268435456/268435456 bytes at offset 0
>> +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
>> +number of deduped extents is in range
>> +md5sum: a30e0f3f1b0884081de11d4357811c2e
>> diff --git a/tests/btrfs/group b/tests/btrfs/group
>> index 76a1181e..bf001d3c 100644
>> --- a/tests/btrfs/group
>> +++ b/tests/btrfs/group
>> @@ -125,6 +125,7 @@
>>  120 auto quick snapshot metadata
>>  121 auto quick snapshot qgroup
>>  122 auto quick snapshot qgroup
>> +<<<<<<< HEAD
>
> Leftover from resolving conflicts?
>
> Thanks,
> Eryu
>
>>  123 auto quick qgroup
>>  124 auto replace
>>  125 auto replace
>> @@ -141,3 +142,4 @@
>>  136 auto convert
>>  137 auto quick send
>>  138 auto compress
>> +200 auto ib-dedupe
>> --
>> 2.12.0
>>
>>
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe fstests" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
>


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diff mbox

Patch

diff --git a/common/defrag b/common/defrag
index d279382f..0a41714f 100644
--- a/common/defrag
+++ b/common/defrag
@@ -59,6 +59,19 @@  _extent_count()
 	$XFS_IO_PROG -c "fiemap" $1 | tail -n +2 | grep -v hole | wc -l| $AWK_PROG '{print $1}'
 }
 
+# Get the number of unique file extents
+# Unique file extents means they have different ondisk bytenr
+# Some filesystem supports reflinkat() or in-band de-dup can create
+# a file whose all file extents points to the same ondisk bytenr
+# this can be used to test if such reflinkat() or in-band de-dup works
+_extent_count_uniq()
+{
+	file=$1
+	$XFS_IO_PROG -c "fiemap" $file >> $seqres.full 2>&1
+	$XFS_IO_PROG -c "fiemap" $file | tail -n +2 | grep -v hole |\
+		$AWK_PROG '{print $3}' | sort | uniq | wc -l
+}
+
 _check_extent_count()
 {
 	min=$1
diff --git a/tests/btrfs/200 b/tests/btrfs/200
new file mode 100755
index 00000000..1b3e46fd
--- /dev/null
+++ b/tests/btrfs/200
@@ -0,0 +1,116 @@ 
+#! /bin/bash
+# FS QA Test 200
+#
+# Basic btrfs inband dedupe test for inmemory backend
+#
+#-----------------------------------------------------------------------
+# Copyright (c) 2016 Fujitsu.  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 /
+	rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/defrag
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# real QA test starts here
+
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_require_btrfs_command dedupe
+_require_btrfs_fs_feature dedupe
+
+# File size is twice the maximum file extent of btrfs
+# So even fallbacked to non-dedupe, it will have at least 2 extents
+file_size=256m
+
+_scratch_mkfs >> $seqres.full 2>&1
+_scratch_mount
+
+do_dedupe_test()
+{
+	dedupe_bs=$1
+
+	echo "Testing inmemory dedupe backend with block size $dedupe_bs"
+	_run_btrfs_util_prog dedupe enable -f -s inmemory -b $dedupe_bs \
+		$SCRATCH_MNT
+	# do sync write to ensure dedupe hash is added into dedupe pool
+	$XFS_IO_PROG -f -c "pwrite -b $dedupe_bs 0 $dedupe_bs" -c "fsync"\
+		$SCRATCH_MNT/initial_block | _filter_xfs_io
+
+	# do sync write to ensure we can get stable fiemap later
+	$XFS_IO_PROG -f -c "pwrite -b $dedupe_bs 0 $file_size" -c "fsync"\
+		$SCRATCH_MNT/real_file | _filter_xfs_io
+
+	# Test if real_file is de-duplicated
+	nr_uniq_extents=$(_extent_count_uniq $SCRATCH_MNT/real_file)
+	nr_total_extents=$(_extent_count $SCRATCH_MNT/real_file)
+	nr_deduped_extents=$(($nr_total_extents - $nr_uniq_extents))
+
+	echo "deduped/total: $nr_deduped_extents/$nr_total_extents" \
+		>> $seqres.full
+	# Allow a small amount of dedupe miss, as commit interval or
+	# memory pressure may break a dedupe_bs block and cause
+	# small extent which won't go through dedupe routine
+	_within_tolerance "number of deduped extents" $nr_deduped_extents \
+		$nr_total_extents 5% -v
+
+	# Also check the md5sum to ensure data is not corrupted
+	md5=$(_md5_checksum $SCRATCH_MNT/real_file)
+	echo "md5sum: $md5"
+}
+
+# Test inmemory dedupe first, use 64K dedupe bs to keep compatibility
+# with 64K page size
+do_dedupe_test 64K
+
+# Test 128K(default) dedupe bs
+do_dedupe_test 128K
+
+# Test 1M dedupe bs
+do_dedupe_test 1M
+
+# Check dedupe disable
+_run_btrfs_util_prog dedupe disable $SCRATCH_MNT
+
+# success, all done
+status=0
+exit
+# Check dedupe disable
+_run_btrfs_util_prog dedupe disable $SCRATCH_MNT
+
+# success, all done
+status=0
+exit
diff --git a/tests/btrfs/200.out b/tests/btrfs/200.out
new file mode 100644
index 00000000..e09e5733
--- /dev/null
+++ b/tests/btrfs/200.out
@@ -0,0 +1,22 @@ 
+QA output created by 200
+Testing inmemory dedupe backend with block size 64K
+wrote 65536/65536 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 268435456/268435456 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+number of deduped extents is in range
+md5sum: a30e0f3f1b0884081de11d4357811c2e
+Testing inmemory dedupe backend with block size 128K
+wrote 131072/131072 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 268435456/268435456 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+number of deduped extents is in range
+md5sum: a30e0f3f1b0884081de11d4357811c2e
+Testing inmemory dedupe backend with block size 1M
+wrote 1048576/1048576 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 268435456/268435456 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+number of deduped extents is in range
+md5sum: a30e0f3f1b0884081de11d4357811c2e
diff --git a/tests/btrfs/group b/tests/btrfs/group
index 76a1181e..bf001d3c 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -125,6 +125,7 @@ 
 120 auto quick snapshot metadata
 121 auto quick snapshot qgroup
 122 auto quick snapshot qgroup
+<<<<<<< HEAD
 123 auto quick qgroup
 124 auto replace
 125 auto replace
@@ -141,3 +142,4 @@ 
 136 auto convert
 137 auto quick send
 138 auto compress
+200 auto ib-dedupe