From: Rik van Riel <riel@surriel.com>
To: Apan Qasem <qasem@cs.rice.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Page coloring in linux
Date: Mon, 27 Nov 2006 18:55:50 -0500 [thread overview]
Message-ID: <456B7B06.70709@surriel.com> (raw)
In-Reply-To: <F17CDCEE-BD2F-458D-93A9-A7D1422598C9@cs.rice.edu>
Apan Qasem wrote:
> Does anyone know where I can find documentation on the page coloring
> algorithm? I just need to find out the the basic heuristics used in
> coloring the pages.
>
> Also, does the kernel source include the page coloring code or do I need
> to patch the kernel?
The Linux kernel does not do page coloring.
One reason for this is that the vast majority of processors
has 4-way, 8-way or higher cache associativity, meaning that
the gains that could be had from coloring are a lot smaller
than they used to be.
Cache coloring is not free, either.
--
Politics is the struggle between those who want to make their country
the best in the world, and those who believe it already is. Each group
calls the other unpatriotic.
prev parent reply other threads:[~2006-11-27 23:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-11-27 17:15 Page coloring in linux Apan Qasem
2006-11-27 23:55 ` Rik van Riel [this message]
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