From: "Keld Jørn Simonsen" <keld@dkuug.dk>
To: Jon Nelson <jnelson-linux-raid@jamponi.net>
Cc: Neil Brown <neilb@suse.de>, Linux-Raid <linux-raid@vger.kernel.org>
Subject: Re: Awful Raid10,f2 performance
Date: Tue, 16 Dec 2008 11:10:20 +0100 [thread overview]
Message-ID: <20081216101020.GA17410@rap.rap.dk> (raw)
In-Reply-To: <cccedfc60812152028g5d5e88c5r23d5d8f873fe8538@mail.gmail.com>
On Mon, Dec 15, 2008 at 10:28:30PM -0600, Jon Nelson wrote:
> On Mon, Dec 15, 2008 at 10:03 PM, Keld Jørn Simonsen <keld@dkuug.dk> wrote:
>
> > there was a pach to speed up raid10,f2 check in a recent kernel,
> > something like 2.6.27. It did improve thruput from something
> > like 40 % to about 90 %. What kernel are you using?
>
> 2.6.25.18-0.2-default
I believe the patch arrived in a later kernel. If you can try it out
with a vanilla kernel and report, I think it would be quite interesting.
best regards
keld
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next prev parent reply other threads:[~2008-12-16 10:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-02 14:11 Awful Raid10,f2 performance Jon Nelson
2008-06-02 14:53 ` Tomasz Chmielewski
2008-06-02 15:09 ` Jon Nelson
2008-06-02 18:30 ` Keld Jørn Simonsen
2008-12-15 13:33 ` Jon Nelson
2008-12-15 21:38 ` Neil Brown
2008-12-16 2:47 ` Jon Nelson
2008-12-16 4:03 ` Keld Jørn Simonsen
2008-12-16 4:28 ` Jon Nelson
2008-12-16 10:10 ` Keld Jørn Simonsen [this message]
2008-12-16 15:26 ` Jon Nelson
2008-12-16 15:53 ` Jon Nelson
2008-12-16 22:01 ` Keld Jørn Simonsen
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