From: David Brown <david.brown@hesbynett.no>
To: Christoph Hellwig <hch@infradead.org>
Cc: Ben Myers <bpm@sgi.com>, Joe Landman <joe.landman@gmail.com>,
linux-raid <linux-raid@vger.kernel.org>,
xfs@oss.sgi.com
Subject: Re: very slow file deletion on an SSD
Date: Sat, 26 May 2012 18:00:12 +0200 [thread overview]
Message-ID: <4FC0FE0C.8080800@hesbynett.no> (raw)
In-Reply-To: <20120525165938.GA13555@infradead.org>
On 25/05/12 18:59, Christoph Hellwig wrote:
> On Fri, May 25, 2012 at 11:57:19AM -0500, Ben Myers wrote:
>> There are a couple recent fixes related to discard that are probably
>> appropriate for 3.2-stable.
>
> Discard is not enabled by default.
>
You would not want to enable discard if slow deletes are an issue -
benchmarks (on ext4) show that enabling trim makes metadata operations,
and delete in particular, much slower.
WARNING: multiple messages have this Message-ID (diff)
From: David Brown <david.brown@hesbynett.no>
To: Christoph Hellwig <hch@infradead.org>
Cc: linux-raid <linux-raid@vger.kernel.org>, Ben Myers <bpm@sgi.com>,
xfs@oss.sgi.com, Joe Landman <joe.landman@gmail.com>
Subject: Re: very slow file deletion on an SSD
Date: Sat, 26 May 2012 18:00:12 +0200 [thread overview]
Message-ID: <4FC0FE0C.8080800@hesbynett.no> (raw)
In-Reply-To: <20120525165938.GA13555@infradead.org>
On 25/05/12 18:59, Christoph Hellwig wrote:
> On Fri, May 25, 2012 at 11:57:19AM -0500, Ben Myers wrote:
>> There are a couple recent fixes related to discard that are probably
>> appropriate for 3.2-stable.
>
> Discard is not enabled by default.
>
You would not want to enable discard if slow deletes are an issue -
benchmarks (on ext4) show that enabling trim makes metadata operations,
and delete in particular, much slower.
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next prev parent reply other threads:[~2012-05-26 16:00 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-25 10:37 very slow file deletion on an SSD Joe Landman
2012-05-25 10:37 ` Joe Landman
2012-05-25 10:45 ` Bernd Schubert
2012-05-25 10:45 ` Bernd Schubert
2012-05-25 10:49 ` Joe Landman
2012-05-25 10:49 ` Joe Landman
2012-05-25 14:48 ` Roberto Spadim
2012-05-25 14:48 ` Roberto Spadim
2012-05-25 16:57 ` Ben Myers
2012-05-25 16:57 ` Ben Myers
2012-05-25 16:54 ` Joe Landman
2012-05-25 16:54 ` Joe Landman
2012-05-25 16:59 ` Christoph Hellwig
2012-05-25 16:59 ` Christoph Hellwig
2012-05-26 16:00 ` David Brown [this message]
2012-05-26 16:00 ` David Brown
2012-05-26 19:56 ` Stan Hoeppner
2012-05-26 19:56 ` Stan Hoeppner
2012-05-26 23:18 ` Dave Chinner
2012-05-26 23:25 ` Joe Landman
2012-05-26 23:25 ` Joe Landman
2012-05-27 0:07 ` Dave Chinner
2012-05-27 0:07 ` Dave Chinner
2012-05-27 0:10 ` joe.landman
2012-05-27 0:10 ` joe.landman
2012-05-27 1:49 ` Joe Landman
2012-05-27 1:49 ` Joe Landman
2012-05-27 2:40 ` Eric Sandeen
2012-05-27 2:43 ` Eric Sandeen
2012-05-27 7:34 ` Stefan Ring
2012-05-27 13:15 ` Krzysztof Adamski
2012-05-27 13:15 ` Krzysztof Adamski
2012-05-27 14:59 ` joe.landman
2012-05-27 14:59 ` joe.landman
2012-05-27 16:07 ` Eric Sandeen
2012-05-27 16:07 ` Eric Sandeen
2012-05-27 17:14 ` Joe Landman
2012-05-27 17:14 ` Joe Landman
2012-05-27 19:24 ` Peter Grandi
2012-05-27 17:17 ` Joe Landman
2012-05-27 17:17 ` Joe Landman
2012-05-26 23:55 ` Joe Landman
2012-05-26 23:55 ` Joe Landman
2012-05-27 0:07 ` Jon Nelson
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