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]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1255598554.2304.1.camel@castor \
--to=richard@rsk.demon.co.uk \
--cc=a.p.zijlstra@chello.nl \
--cc=fengguang.wu@intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mbligh@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.