From: Rich Johnston <rjohnston@sgi.com>
To: Dave Chinner <david@fromorbit.com>
Cc: xfs@oss.sgi.com
Subject: Re: [PATCH 4/4] xfstests: speed up 227 by using preallocation
Date: Thu, 16 Aug 2012 14:16:41 -0500 [thread overview]
Message-ID: <502D4719.9030906@sgi.com> (raw)
In-Reply-To: <1343291706-14882-5-git-send-email-david@fromorbit.com>
On 07/26/2012 03:35 AM, Dave Chinner wrote:
> From: Dave Chinner <dchinner@redhat.com>
>
> Test 227 (fsr test) creates fragmented fre space by doing lots of
> small writes to sparse offsets ni a file. This seeks the disk heads
> around a lot writing data. We don't need to write data - just
> trigger allocation. Hence use preallocation instead of data writes
> and run at allocation speed rather than data write speed.
>
> Signed-off-by: Dave Chinner <dchinner@redhat.com>
> ---
> 227 | 46 +++++++++++++++++++++++++++++++++-------------
> 1 file changed, 33 insertions(+), 13 deletions(-)
Looks good to me.
Reviewed-by: Rich Johnston <rjohnston@sgi.com>
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next prev parent reply other threads:[~2012-08-16 19:16 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-26 8:35 [PATCH 0/4] xfstests: random fixes and improvements Dave Chinner
2012-07-26 8:35 ` [PATCH 1/4] xfstests: test 110 sometimes fails to unmount scratch dev Dave Chinner
2012-08-16 19:16 ` Rich Johnston
2012-08-28 20:06 ` Christoph Hellwig
2012-08-28 20:20 ` Ben Myers
2012-07-26 8:35 ` [PATCH 2/4] xfstests: loop devices vs umount stupidity Dave Chinner
2012-08-16 19:16 ` Rich Johnston
2012-08-16 22:27 ` Dave Chinner
2012-08-17 12:45 ` Rich Johnston
2012-08-28 20:06 ` Christoph Hellwig
2012-07-26 8:35 ` [PATCH 3/4] xfstests: _check_quota_usage needs to unmount to get XFS quotacheck Dave Chinner
2012-07-26 22:55 ` Dave Chinner
2012-08-16 19:16 ` Rich Johnston
2012-08-28 20:07 ` Christoph Hellwig
2012-07-26 8:35 ` [PATCH 4/4] xfstests: speed up 227 by using preallocation Dave Chinner
2012-08-16 19:16 ` Rich Johnston [this message]
2012-08-28 20:07 ` Christoph Hellwig
2012-08-14 21:39 ` [PATCH 0/4] xfstests: random fixes and improvements Dave Chinner
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