From: Richard Kennedy <richard@rsk.demon.co.uk>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wu Fengguang <fengguang.wu@intel.com>,
lkml <linux-kernel@vger.kernel.org>,
Martin Bligh <mbligh@google.com>
Subject: Re: bdi_threshold slow to reach steady state
Date: Thu, 15 Oct 2009 10:22:34 +0100 [thread overview]
Message-ID: <1255598554.2304.1.camel@castor> (raw)
In-Reply-To: <1255529072.8392.436.camel@twins>
On Wed, 2009-10-14 at 16:04 +0200, Peter Zijlstra wrote:
> On Wed, 2009-10-14 at 14:55 +0100, Richard Kennedy wrote:
> >
> > commit 11735a2336ba08cf21aebf79a706c86aca5e44b2
> > Author: Richard Kennedy <richard@rsk.demon.co.uk>
> > Date: Wed Oct 14 14:46:21 2009 +0100
> >
> > mm: speed up per bdi dirty threshold calculations
>
> I think the subject is confusing, we don't actually compute things
> faster in the less cycles sense.
>
> We reduce the dampening for the control system, yielding faster
> convergence.
Ah yes, sorry about that. That was a bit of a placeholder.
I'll write a proper change log & re-post.
regards
Richard
prev parent reply other threads:[~2009-10-15 9:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-14 11:09 bdi_threshold slow to reach steady state Richard Kennedy
2009-10-14 11:37 ` Peter Zijlstra
2009-10-14 13:55 ` Richard Kennedy
2009-10-14 14:04 ` Peter Zijlstra
2009-10-15 9:22 ` Richard Kennedy [this message]
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