From: Dave Chinner <david@fromorbit.com>
To: Dmitry Monakhov <dmonakhov@openvz.org>
Cc: linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org,
hch@lst.de, xfs@oss.sgi.com
Subject: Re: [PATCH 6/6] add defragmentation stress test for ext4
Date: Thu, 27 Sep 2012 11:15:22 +1000 [thread overview]
Message-ID: <20120927011522.GH15236@dastard> (raw)
In-Reply-To: <1348496601-32637-6-git-send-email-dmonakhov@openvz.org>
On Mon, Sep 24, 2012 at 06:23:21PM +0400, Dmitry Monakhov wrote:
> Perform various regression tests for ext4defrag subsystem
>
> Test1: Defragment file while other task does direct AIO
> Test2: Perform defragmentation on file under buffered AIO
> while third task does direct AIO to donor file
> Test3: Two defrag tasks use common donor file.
> Test4: Stress defragmentation. Several threads pefrorm
> fragmentation at random position use inplace=1 will
> allocate and free blocks inside defrag event improve
> load pressure.
Please do these as 4 separate tests so that it is easy to
isolate/reproduce failures caused by a specific test that is being
run.
Same comments as previous two patches, as well.
> +_workout()
> +{
> + echo ""
> + echo " Start defragment activity "
> + echo ""
> + cat $tmp-$seq.fio >> $seq.full
> + run_check $FIO_PROG $tmp-$seq.fio >> $seq.full
> +}
> +
> +# real QA test starts here
> +_supported_fs generic
> +_supported_os Linux
> +_supported_fs ext4
> +_need_to_be_root
> +_require_scratch
> +_require_fio $tmp-$seq.fio
Even though e4defrag is not used, it's probably still a good idea to
call _require_defrag to check for systems that have a recent enough
ext4 to run defrag on. e.g. a recent fio on an old distro might
result in fio saying "I understand this job file" but then not be
able to run defrag...
Cheers,
Dave.
--
Dave Chinner
david@fromorbit.com
next prev parent reply other threads:[~2012-09-27 1:15 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-24 14:23 [PATCH 1/6] xfstests: add fio requirement V2 Dmitry Monakhov
2012-09-24 14:23 ` [PATCH 2/6] xfstest: add configurable load factors Dmitry Monakhov
2012-09-27 0:06 ` Dave Chinner
2012-09-24 14:23 ` [PATCH 3/6] xfstest: allow fsstress to use load factor where appropriate Dmitry Monakhov
2012-09-27 0:19 ` Dave Chinner
2012-09-24 14:23 ` [PATCH 4/6] add fallocate/truncate vs AIO/DIO stress test Dmitry Monakhov
2012-09-27 1:05 ` Dave Chinner
2012-09-24 14:23 ` [PATCH 5/6] add fallocate/punch_hole " Dmitry Monakhov
2012-09-27 1:07 ` Dave Chinner
2012-09-24 14:23 ` [PATCH 6/6] add defragmentation stress test for ext4 Dmitry Monakhov
2012-09-27 1:15 ` Dave Chinner [this message]
2012-09-27 0:19 ` [PATCH 1/6] xfstests: add fio requirement V2 Dave Chinner
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