From: Arjan van de Ven <arjan@infradead.org>
To: Steve Rago <sar@nec-labs.com>
Cc: Ingo Molnar <mingo@elte.hu>,
Peter Zijlstra <peterz@infradead.org>,
linux-nfs@vger.kernel.org, linux-kernel@vger.kernel.org,
Trond.Myklebust@netapp.com, Wu Fengguang <fengguang.wu@intel.com>,
"jens.axboe" <jens.axboe@oracle.com>
Subject: Re: [PATCH] improve the performance of large sequential write NFS workloads
Date: Sat, 19 Dec 2009 09:08:24 +0100 [thread overview]
Message-ID: <20091219090824.1bc4a1c8@infradead.org> (raw)
In-Reply-To: <1261171211.1947.135.camel@serenity>
On Fri, 18 Dec 2009 16:20:11 -0500
Steve Rago <sar@nec-labs.com> wrote:
>
> I don't disagree, but "that's not what we do" hardly provides insight
> into making the judgment call. In this case, the variety of
> combinations of NFS server speed, NFS client speed, transmission link
> speed, client memory size, and server memory size argues for a tunable
> parameter, because one value probably won't work well in all
> combinations. Making it change dynamically based on these parameters
> is more complicated than these circumstances call for, IMHO.
if you as the expert do not know how to tune this... how is a sysadmin
supposed to know better?
--
Arjan van de Ven Intel Open Source Technology Centre
For development, discussion and tips for power savings,
visit http://www.lesswatts.org
next prev parent reply other threads:[~2009-12-19 8:06 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-17 2:03 Steve Rago
2009-12-17 8:17 ` Peter Zijlstra
2009-12-18 19:33 ` Steve Rago
2009-12-18 19:41 ` Ingo Molnar
2009-12-18 21:20 ` Steve Rago
2009-12-18 22:07 ` Ingo Molnar
2009-12-18 22:46 ` Steve Rago
2009-12-19 8:08 ` Arjan van de Ven [this message]
2009-12-19 13:37 ` Steve Rago
2009-12-18 19:44 ` Peter Zijlstra
2009-12-19 12:20 ` Wu Fengguang
2009-12-19 14:25 ` Steve Rago
2009-12-22 1:59 ` Wu Fengguang
2009-12-22 12:35 ` Jan Kara
2009-12-23 8:43 ` Christoph Hellwig
2009-12-23 13:32 ` Jan Kara
2009-12-24 5:25 ` Wu Fengguang
2009-12-24 1:26 ` Wu Fengguang
2009-12-22 13:01 ` Martin Knoblauch
2009-12-24 1:46 ` Wu Fengguang
2009-12-22 16:41 ` Steve Rago
2009-12-24 1:21 ` Wu Fengguang
2009-12-24 14:49 ` Steve Rago
2009-12-25 7:37 ` Wu Fengguang
2009-12-23 14:21 ` Trond Myklebust
2009-12-23 18:05 ` Jan Kara
2009-12-23 19:12 ` Trond Myklebust
2009-12-24 2:52 ` Wu Fengguang
2009-12-24 12:04 ` Trond Myklebust
2009-12-25 5:56 ` Wu Fengguang
2009-12-30 16:22 ` Trond Myklebust
2009-12-31 5:04 ` Wu Fengguang
2009-12-31 19:13 ` Trond Myklebust
2010-01-06 3:03 ` Wu Fengguang
2010-01-06 16:56 ` Trond Myklebust
2010-01-06 18:26 ` Trond Myklebust
2010-01-06 18:37 ` Peter Zijlstra
2010-01-06 18:52 ` Trond Myklebust
2010-01-06 19:07 ` Peter Zijlstra
2010-01-06 19:21 ` Trond Myklebust
2010-01-06 19:53 ` Trond Myklebust
2010-01-06 20:09 ` Jan Kara
2009-12-22 12:25 ` Jan Kara
2009-12-22 12:38 ` Peter Zijlstra
2009-12-22 12:55 ` Jan Kara
2009-12-22 16:20 ` Steve Rago
2009-12-23 18:39 ` Jan Kara
2009-12-23 20:16 ` Steve Rago
2009-12-23 21:49 ` Trond Myklebust
2009-12-23 23:13 ` Steve Rago
2009-12-23 23:44 ` Trond Myklebust
2009-12-24 4:30 ` Steve Rago
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