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From: Peter Zijlstra <peterz@infradead.org>
To: Jan Kara <jack@suse.cz>
Cc: Steve Rago <sar@nec-labs.com>,
	Wu Fengguang <fengguang.wu@intel.com>,
	"linux-nfs@vger.kernel.org" <linux-nfs@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"Trond.Myklebust@netapp.com" <Trond.Myklebust@netapp.com>,
	"jens.axboe" <jens.axboe@oracle.com>,
	Peter Staubach <staubach@redhat.com>
Subject: Re: [PATCH] improve the performance of large sequential write NFS workloads
Date: Tue, 22 Dec 2009 13:38:35 +0100	[thread overview]
Message-ID: <1261485515.4937.28.camel@laptop> (raw)
In-Reply-To: <20091222122557.GA604@atrey.karlin.mff.cuni.cz>

On Tue, 2009-12-22 at 13:25 +0100, Jan Kara wrote:
>   I believe that if we had per-bdi dirty_background_ratio and set it low
> for NFS's bdi, 

There's two things there I think:
 1) bdi_background
 2) different background ratios per bdi

1) could be 'trivially' done much like we do bdi_dirty in
get_dirty_limits().

2) I'm not at all convinced we want to go there.


  reply	other threads:[~2009-12-22 12:39 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-12-17  2:03 [PATCH] improve the performance of large sequential write NFS workloads 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
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 [this message]
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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