From: Al Boldi <a1426z@gawab.com>
To: Rogier Wolff <R.E.Wolff@BitWizard.nl>
Cc: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org
Subject: Re: Fwd: Re: RAID performance is not too well....
Date: Mon, 9 Jul 2007 18:30:51 +0300 [thread overview]
Message-ID: <200707091830.51707.a1426z@gawab.com> (raw)
In-Reply-To: <20070709113916.GA9781@bitwizard.nl>
Rogier Wolff wrote:
> > >I have an application that creates some 228 thousand files,
> > >spread over about 4000 directories. Total is not more than
> > >1.3Gb. (I'm not sure, and I don't care if it's 10% or 90% of
> > >that number)
> > >
> > >Anyway, I've loaded all of the 1.3Gb into the cache (the machine
> > >has 8Gb of RAM), so that only writes need to take place.
> > >
> > >After a while the machine goes into a routine of writing
> > >about 500 to 1000kbytes per second.
> > >
> > >Sync seems to take a long time:
The as-iosched has a sync bug, and if you are using that, then try deadline
instead.
Thanks!
--
Al
prev parent reply other threads:[~2007-07-09 15:30 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-09 11:39 Fwd: Re: RAID performance is not too well Rogier Wolff
2007-07-09 15:30 ` Al Boldi [this message]
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