From: Ira Snyder <kernel@irasnyder.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Hawkins <darthmdh@gmail.com>,
linux-kernel@vger.kernel.org, Con Kolivas <kernel@kolivas.org>,
ck list <ck@vds.kolivas.org>,
linux-mm@kvack.org, Paul Jackson <pj@sgi.com>
Subject: Re: [ck] Re: -mm merge plans for 2.6.23
Date: Tue, 10 Jul 2007 20:21:23 -0600 [thread overview]
Message-ID: <20070710202123.d819835e.kernel@irasnyder.com> (raw)
In-Reply-To: <20070710181419.6d1b2f7e.akpm@linux-foundation.org>
[-- Attachment #1: Type: text/plain, Size: 1376 bytes --]
On Tue, 10 Jul 2007 18:14:19 -0700
Andrew Morton <akpm@linux-foundation.org> wrote:
> On Wed, 11 Jul 2007 11:02:56 +1000 "Matthew Hawkins" <darthmdh@gmail.com> wrote:
>
> > We all know swap prefetch has been tested out the wazoo since Moses was a
> > little boy, is compile-time and runtime selectable, and gives an important
> > and quantifiable performance increase to desktop systems.
>
> Always interested. Please provide us more details on your usage and
> testing of that code. Amount of memory, workload, observed results,
> etc?
>
I often leave long compiles running overnight (I'm a gentoo user). I always have the desktop running, with quite a few applications open, usually firefox, amarok, sylpheed, and liferea at the minimum. I've recently tried using a "stock" gentoo kernel, without the swap prefetch patch, and in the morning when I get on the computer, it hits the disk pretty hard pulling my applications (especially firefox) in from swap. With swap prefetch, the system responds like I expect: quick. It doesn't hit the swap at all, at least that I can tell.
Swap prefetch definitely makes a difference for me: it makes my experience MUCH better.
My system is a Core Duo 1.83GHz laptop, with 1GB ram and a 5400 rpm disk. With the disk being so slow, the less I hit swap, the better.
I'll cast my vote to merge swap prefetch.
[-- Attachment #2: Type: application/pgp-signature, Size: 189 bytes --]
next prev parent reply other threads:[~2007-07-11 2:21 UTC|newest]
Thread overview: 227+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20070710013152.ef2cd200.akpm@linux-foundation.org>
2007-07-10 10:15 ` Con Kolivas
2007-07-11 1:02 ` Matthew Hawkins
2007-07-11 1:14 ` [ck] " Andrew Morton
2007-07-11 1:52 ` André Goddard Rosa
2007-07-11 4:25 ` [ck] " André Goddard Rosa
2007-07-11 2:21 ` Ira Snyder [this message]
2007-07-11 3:37 ` timotheus
2007-07-11 2:54 ` Matthew Hawkins
2007-07-11 5:18 ` Nick Piggin
2007-07-11 5:47 ` Ray Lee
2007-07-11 5:54 ` Nick Piggin
2007-07-11 6:04 ` Ray Lee
2007-07-11 6:24 ` Nick Piggin
2007-07-11 7:50 ` swap prefetch (Re: -mm merge plans for 2.6.23) Ingo Molnar
2007-07-11 6:00 ` [ck] Re: -mm merge plans for 2.6.23 Nick Piggin
2007-07-11 3:59 ` Grzegorz Kulewski
2007-07-11 12:26 ` Kevin Winchester
2007-07-11 12:36 ` Jesper Juhl
2007-07-12 12:06 ` Kacper Wysocki
2007-07-12 12:35 ` Avuton Olrich
2007-07-22 23:11 ` Con Kolivas
2007-07-23 23:08 ` Jesper Juhl
2007-07-24 3:22 ` Nick Piggin
2007-07-24 4:53 ` Ray Lee
2007-07-24 5:10 ` Jeremy Fitzhardinge
2007-07-24 5:18 ` Ray Lee
2007-07-24 5:16 ` Nick Piggin
2007-07-24 16:11 ` -mm merge plans for 2.6.23 - Completely Fair Swap Prefetch Frank Kingswood
2007-07-25 0:59 ` [ck] " Matthew Hawkins
2007-07-24 16:15 ` -mm merge plans for 2.6.23 Ray Lee
2007-07-25 4:06 ` Nick Piggin
2007-07-25 4:55 ` Rene Herman
2007-07-25 5:00 ` Nick Piggin
2007-07-25 5:12 ` david
2007-07-25 5:30 ` Rene Herman
2007-07-25 5:51 ` david
2007-07-25 7:14 ` Valdis.Kletnieks
2007-07-25 8:18 ` Rene Herman
2007-07-25 8:28 ` Ingo Molnar
2007-07-25 8:43 ` Rene Herman
2007-07-25 10:53 ` [ck] " Jos Poortvliet
2007-07-25 11:06 ` Nick Piggin
2007-07-25 12:39 ` Jos Poortvliet
2007-07-25 13:30 ` Rene Herman
2007-07-25 13:50 ` Ingo Molnar
2007-07-25 17:33 ` Satyam Sharma
2007-07-25 20:35 ` Ingo Molnar
2007-07-26 2:32 ` Bartlomiej Zolnierkiewicz
2007-07-26 4:13 ` Jeff Garzik
2007-07-26 10:22 ` Bartlomiej Zolnierkiewicz
2007-07-25 11:34 ` Ingo Molnar
2007-07-25 11:40 ` Rene Herman
2007-07-25 11:50 ` Ingo Molnar
2007-07-25 16:08 ` Valdis.Kletnieks
2007-07-25 22:05 ` Paul Jackson
2007-07-25 22:22 ` Zan Lynx
2007-07-25 22:27 ` Jesper Juhl
2007-07-25 22:28 ` [ck] " Michael Chang
2007-07-25 23:45 ` André Goddard Rosa
2007-07-25 16:02 ` Ray Lee
2007-07-25 20:55 ` Zan Lynx
2007-07-25 21:28 ` Ray Lee
2007-07-26 1:15 ` [ck] " Matthew Hawkins
2007-07-26 1:32 ` Ray Lee
2007-07-26 3:16 ` Matthew Hawkins
2007-07-26 22:30 ` Michael Chang
2007-07-25 5:30 ` Eric St-Laurent
2007-07-25 5:37 ` Nick Piggin
2007-07-25 5:53 ` david
2007-07-25 6:04 ` Nick Piggin
2007-07-25 6:23 ` david
2007-07-25 7:25 ` Nick Piggin
2007-07-25 7:49 ` Ingo Molnar
2007-07-25 7:58 ` Nick Piggin
2007-07-25 8:15 ` Ingo Molnar
2007-07-25 10:41 ` Jesper Juhl
2007-07-25 6:19 ` [ck] " Matthew Hawkins
2007-07-25 6:30 ` Nick Piggin
2007-07-25 6:47 ` Mike Galbraith
2007-07-25 7:19 ` Eric St-Laurent
2007-07-25 6:44 ` Eric St-Laurent
2007-07-25 16:09 ` Ray Lee
2007-07-26 4:57 ` Andrew Morton
2007-07-26 5:53 ` Nick Piggin
2007-07-26 6:06 ` Andrew Morton
2007-07-26 6:17 ` Nick Piggin
2007-07-26 6:33 ` Ray Lee
2007-07-26 6:50 ` Andrew Morton
2007-07-26 7:43 ` Ray Lee
2007-07-26 7:59 ` Nick Piggin
2007-07-28 0:24 ` Matt Mackall
2007-07-26 14:19 ` [ck] " Michael Chang
2007-07-26 18:13 ` Andrew Morton
2007-07-26 22:04 ` Dirk Schoebel
2007-07-26 22:33 ` Dirk Schoebel
2007-07-26 23:27 ` Jeff Garzik
2007-07-26 23:29 ` david
2007-07-26 23:39 ` Jeff Garzik
2007-07-27 0:12 ` david
2007-07-28 0:12 ` Matt Mackall
2007-07-28 3:42 ` Daniel Cheng
2007-07-28 9:35 ` Stefan Richter
2007-07-25 17:55 ` Frank A. Kingswood
2007-07-25 6:09 ` [ck] " Matthew Hawkins
2007-07-25 6:18 ` Nick Piggin
2007-07-25 16:19 ` Ray Lee
2007-07-25 20:46 ` Andi Kleen
2007-07-26 8:38 ` Frank Kingswood
2007-07-26 9:20 ` Ingo Molnar
2007-07-26 9:34 ` Andrew Morton
2007-07-26 9:40 ` RFT: updatedb "morning after" problem [was: Re: -mm merge plans for 2.6.23] Ingo Molnar
2007-07-26 10:09 ` Andrew Morton
2007-07-26 10:24 ` Ingo Molnar
2007-07-27 0:33 ` [ck] " Matthew Hawkins
2007-07-30 9:33 ` Helge Hafting
2007-07-26 10:27 ` Ingo Molnar
2007-07-26 10:38 ` Andrew Morton
2007-07-26 12:46 ` Mike Galbraith
2007-07-26 18:05 ` Andrew Morton
2007-07-27 5:12 ` Mike Galbraith
2007-07-27 7:23 ` Mike Galbraith
2007-07-27 8:47 ` Andrew Morton
2007-07-27 8:54 ` Al Viro
2007-07-27 9:02 ` Andrew Morton
2007-07-27 9:40 ` Mike Galbraith
2007-07-27 10:00 ` Andrew Morton
2007-07-27 10:25 ` Mike Galbraith
2007-07-27 17:45 ` Daniel Hazelton
2007-07-27 18:16 ` Rene Herman
2007-07-27 19:43 ` david
2007-07-28 7:19 ` Rene Herman
2007-07-28 8:55 ` david
2007-07-28 10:11 ` Rene Herman
2007-07-28 11:21 ` Alan Cox
2007-07-28 16:29 ` Ray Lee
2007-07-28 21:03 ` david
2007-07-29 8:11 ` Rene Herman
2007-07-29 13:12 ` Alan Cox
2007-07-29 14:07 ` Rene Herman
2007-07-29 14:58 ` Ray Lee
2007-07-29 14:59 ` Rene Herman
2007-07-29 15:20 ` Ray Lee
2007-07-29 15:36 ` Rene Herman
2007-07-29 16:04 ` Ray Lee
2007-07-29 16:59 ` Rene Herman
2007-07-29 17:19 ` Ray Lee
2007-07-29 17:33 ` Rene Herman
2007-07-29 17:52 ` Ray Lee
2007-07-29 19:05 ` Rene Herman
2007-07-29 17:53 ` Alan Cox
2007-07-29 19:33 ` Paul Jackson
2007-07-29 20:00 ` Ray Lee
2007-07-29 20:18 ` Paul Jackson
2007-07-29 20:23 ` Ray Lee
2007-07-29 21:06 ` Daniel Hazelton
2007-07-28 21:00 ` david
2007-07-29 10:09 ` Rene Herman
2007-07-29 11:41 ` david
2007-07-29 14:01 ` Rene Herman
2007-07-29 21:19 ` david
2007-08-06 2:14 ` Nick Piggin
2007-08-06 2:22 ` david
2007-08-06 9:21 ` Nick Piggin
2007-08-06 9:55 ` Paolo Ciarrocchi
2007-07-28 15:56 ` Daniel Hazelton
2007-07-28 21:06 ` david
2007-07-28 21:48 ` Daniel Hazelton
2007-07-27 20:28 ` Daniel Hazelton
2007-07-28 5:19 ` Rene Herman
2007-07-27 23:15 ` Björn Steinbrink
2007-07-27 23:29 ` Andi Kleen
2007-07-28 0:08 ` Björn Steinbrink
2007-07-28 1:10 ` Daniel Hazelton
2007-07-29 12:53 ` Paul Jackson
2007-07-28 7:35 ` Rene Herman
2007-07-28 8:51 ` Rene Herman
2007-07-27 22:08 ` Mike Galbraith
2007-07-27 22:51 ` Daniel Hazelton
2007-07-28 7:48 ` Mike Galbraith
2007-07-28 15:36 ` Daniel Hazelton
2007-07-29 1:33 ` Rik van Riel
2007-07-29 3:39 ` Andrew Morton
2007-07-26 10:20 ` Al Viro
2007-07-26 12:23 ` Andi Kleen
2007-07-26 14:59 ` Al Viro
2007-07-11 20:41 ` Pavel Machek
2007-07-27 19:19 ` Paul Jackson
2007-07-26 13:05 ` Fredrik Klasson
2007-07-31 16:37 ` [ck] Re: -mm merge plans for 2.6.23 Matthew Hawkins
2007-08-06 2:11 ` Nick Piggin
2007-07-25 4:46 ` david
2007-07-25 8:00 ` Rene Herman
2007-07-25 8:07 ` david
2007-07-25 8:29 ` Rene Herman
2007-07-25 8:31 ` david
2007-07-25 8:33 ` david
2007-07-25 10:58 ` Rene Herman
2007-07-25 15:55 ` Ray Lee
2007-07-25 20:16 ` Al Boldi
2007-07-27 0:28 ` Magnus Naeslund
2007-07-24 5:18 ` Andrew Morton
2007-07-24 6:01 ` Ray Lee
2007-07-24 6:10 ` Andrew Morton
2007-07-24 9:38 ` Tilman Schmidt
2007-07-25 1:26 ` [ck] " Matthew Hawkins
2007-07-25 1:35 ` David Miller, Matthew Hawkins
2007-07-24 0:08 ` Con Kolivas
2007-07-11 11:39 ` buffered write patches, " Christoph Hellwig
2007-07-11 17:23 ` Andrew Morton
2007-07-11 12:23 ` lguest, " Christoph Hellwig
2007-07-11 15:45 ` Randy Dunlap
2007-07-11 18:04 ` Andrew Morton
2007-07-12 1:21 ` Rusty Russell
2007-07-12 2:28 ` David Miller, Rusty Russell
2007-07-12 2:48 ` Rusty Russell
2007-07-12 2:51 ` David Miller, Rusty Russell
2007-07-12 3:15 ` Rusty Russell
2007-07-12 3:35 ` David Miller, Rusty Russell
2007-07-12 4:24 ` Andrew Morton
2007-07-12 4:52 ` Rusty Russell
2007-07-12 11:10 ` Avi Kivity
2007-07-19 17:27 ` Christoph Hellwig
2007-07-20 3:27 ` Rusty Russell
2007-07-20 7:15 ` Christoph Hellwig
2007-07-12 0:54 ` fault vs invalidate race (Re: -mm merge plans for 2.6.23) Nick Piggin
2007-07-12 2:31 ` block_page_mkwrite? (Re: fault vs invalidate race (Re: -mm merge plans for 2.6.23)) David Chinner
2007-07-12 2:42 ` Nick Piggin
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=20070710202123.d819835e.kernel@irasnyder.com \
--to=kernel@irasnyder.com \
--cc=akpm@linux-foundation.org \
--cc=ck@vds.kolivas.org \
--cc=darthmdh@gmail.com \
--cc=kernel@kolivas.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=pj@sgi.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox