From: Nikita Danilov <nikita@clusterfs.com>
To: Rik van Riel <riel@redhat.com>
Cc: linux-mm@kvack.org, Andrew Morton <AKPM@Osdl.ORG>
Subject: Re: [PATCH]: VM 4/8 dont-rotate-active-list
Date: Tue, 19 Apr 2005 17:54:19 +0400 [thread overview]
Message-ID: <16997.3467.378280.467539@gargle.gargle.HOWL> (raw)
In-Reply-To: <Pine.LNX.4.61.0504180847350.3232@chimarrao.boston.redhat.com>
Rik van Riel writes:
> On Sun, 17 Apr 2005, Nikita Danilov wrote:
>
> > This patch modifies refill_inactive_zone() so that it scans active_list
> > without rotating it. To achieve this, special dummy page zone->scan_page
> > is maintained for each zone. This page marks a place in the active_list
> > reached during scanning.
>
> Doesn't this make the active list behave closer to FIFO ?
>
> How does this behave when running a mix of multiple
> applications, instead of one app that's referencing
> memory in a circular pattern ? Say, AIM7 ?
Nick Piggin found that this patch improves kbuild performance:
http://mail.nl.linux.org/linux-mm/2004-01/msg00111.html
That thread also contains lengthy discussion of why this patch was
supposed to work.
>
Nikita.
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next prev parent reply other threads:[~2005-04-19 13:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-17 17:36 Nikita Danilov
2005-04-18 12:49 ` Rik van Riel
2005-04-19 13:54 ` Nikita Danilov [this message]
2005-04-26 3:51 ` Andrew Morton
2005-04-26 6:51 ` Nick Piggin
2005-04-26 8:11 ` Nikita Danilov
2005-04-26 8:18 ` Andrew Morton
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