linux-kernel - Re: [PATCH 02/11] writeback: switch to per-bdi threads for flushing data

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Message-Id: <1242771104.26820.504.camel@twins>
Date:	Wed, 20 May 2009 00:11:44 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Jens Axboe <jens.axboe@...cle.com>
Cc:	Richard Kennedy <richard@....demon.co.uk>,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	chris.mason@...cle.com, david@...morbit.com, hch@...radead.org,
	akpm@...ux-foundation.org, jack@...e.cz,
	yanmin_zhang@...ux.intel.com
Subject: Re: [PATCH 02/11] writeback: switch to per-bdi threads for
 flushing data

On Tue, 2009-05-19 at 19:56 +0200, Jens Axboe wrote:
> > Balance_dirty_pages contains Peter Zijlstra's per bdi write throttling
> > code and I wonder if it will need tuning for best performance with your
> > changes, just because some of its assumptions may have changed. I'll run
> > some tests here and see what happens. Peter may have some insight and
> > possibly useful test cases.
> 
> I'm assuming those are setting in -mm? I'll take a look.

Nah, those got merged ages ago (.24 iirc) and I don't think that would
need any touch ups wrt this series.


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