From: Rene Herman <rene.herman@gmail.com>
To: Ray Lee <ray-lk@madrabbit.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
david@lang.hm, Daniel Hazelton <dhazelton@enter.net>,
Mike Galbraith <efault@gmx.de>,
Andrew Morton <akpm@linux-foundation.org>,
Ingo Molnar <mingo@elte.hu>,
Frank Kingswood <frank@kingswood-consulting.co.uk>,
Andi Kleen <andi@firstfloor.org>,
Nick Piggin <nickpiggin@yahoo.com.au>,
Jesper Juhl <jesper.juhl@gmail.com>, ck list <ck@vds.kolivas.org>,
Paul Jackson <pj@sgi.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: RFT: updatedb "morning after" problem [was: Re: -mm merge plans for 2.6.23]
Date: Sun, 29 Jul 2007 18:59:22 +0200 [thread overview]
Message-ID: <46ACC76A.3080303@gmail.com> (raw)
In-Reply-To: <2c0942db0707290904n4356582dt91ab96b77db1e84e@mail.gmail.com>
On 07/29/2007 06:04 PM, Ray Lee wrote:
>> I am very aware of the costs of seeks (on current magnetic media).
>
> Then perhaps you can just take it on faith -- log structured layouts
> are designed to help minimize seeks, read and write.
I am particularly bad at faith. Let's take that stupid program that I posted:
http://lkml.org/lkml/2007/7/25/85
You push it out before you hit enter, it's written out to swap, at whatever
speed. How should it be layed out so that it's swapped in most efficiently
after hitting enter? Reading bigger chunks would quite obviously help, but
the layout?
The program is not a real-world issue and if you do not consider it a useful
boundary condition either (okay I guess), how would log structured swap help
if I just assume I have plenty of free swap to begin with?
Rene.
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next prev parent reply other threads:[~2007-07-29 16:59 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 ` -mm merge plans for 2.6.23 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
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 [this message]
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
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