From: "David Mentr'e" <David.Mentre@irisa.fr>
To: James Simmons <jsimmons@edgeglobal.com>
Cc: Andrea Arcangeli <andrea@suse.de>, linux-mm@kvack.org
Subject: Re: SV: Need ammo against BSD Fud
Date: 25 Sep 1999 21:05:41 +0200 [thread overview]
Message-ID: <wd8puz6erqy.fsf@parate.irisa.fr> (raw)
In-Reply-To: James Simmons's message of "Sat, 25 Sep 1999 12:28:30 -0400 (EDT)"
James Simmons <jsimmons@edgeglobal.com> writes:
> Whats page colouring?
This is a scheme that tries to allocate pages to minimize cache
conflicts.
More precisely : if a process need a page, the kernel tries to give him
a page that will not conflict (that is to say will use a different cache
set) with its actual set of pages.
Some "academical" studies have shown that some gain are
possible. However I do not now any successful real-life implementation
of page colouring.
Some time ago, David Miller (of sparc, ultrasparc and gcc-sparc64 fame)
implemented a minimal coulouring support. Should be in some archives.
david
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David.Mentre@irisa.fr -- http://www.irisa.fr/prive/dmentre/
Opinions expressed here are only mine.
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prev parent reply other threads:[~1999-09-25 19:05 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-09-17 21:59 JF Martinez
1999-09-18 2:53 ` Neil A. Carson
1999-09-18 20:22 ` JF Martinez
1999-09-18 11:57 ` Ralf Baechle
1999-09-19 12:29 ` Rik van Riel
1999-09-19 15:13 ` James Simmons
1999-09-21 20:53 ` SV: " Hans Eric Sandström
1999-09-25 14:27 ` Andrea Arcangeli
1999-09-25 16:28 ` James Simmons
1999-09-25 19:05 ` David Mentr'e [this message]
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