From: Peter Niemayer <niemayer@isg.de>
To: linux-kernel@vger.kernel.org
Cc: xfs@oss.sgi.com
Subject: XFS support for TRIM / blkdev_issue_discard?
Date: Tue, 14 Apr 2009 16:44:01 +0200 [thread overview]
Message-ID: <49E4A131.5040309@isg.de> (raw)
In-Reply-To: <20090331053013.7642414167108@attica.americas.sgi.com>
Dear Felix Blyakher,
do you know whether there are plans to support the ATA TRIM command /
blkdev_issue_discard() call in XFS for Linux anytime soon?
I ask because as someone who is currently benchmarking solid state disks
for certain usage scenarios I noticed that other filesystems are starting
to support the discarding of unused blocks, which allows to prevent
performance-degradation of SSDs during heavy use.
(See e.g. http://www.mail-archive.com/cluster-devel@redhat.com/msg03401.html
on the GFS2 support for the discard feature, it seems not too hard
to implement the support)
Amongst other SSDs, we have one in our tests that supports the ATA TRIM command,
and I would like to test the benefits of it, even if that requires me
to install an early kernel pre-release.
(Currently, XFS is our favorite filesystem for several reasons, so it would
be great if we could run our TRIM-support-benchmarks using it)
Regards,
Peter Niemayer
prev parent reply other threads:[~2009-04-14 14:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-31 5:30 [GIT PULL] XFS update for 2.6.30 Felix Blyakher
2009-04-02 16:26 ` Felix Blyakher
2009-04-03 16:52 ` Linus Torvalds
2009-04-03 17:02 ` Linus Torvalds
2009-04-03 17:41 ` Felix Blyakher
2009-04-04 1:19 ` david
2009-04-04 1:54 ` Felix Blyakher
2009-04-14 14:44 ` Peter Niemayer [this message]
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