From: Rik van Riel <riel@conectiva.com.br>
To: Matt Dillon <dillon@earth.backplane.com>
Cc: Charles Randall <crandall@matchlogic.com>,
Roger Larsson <roger.larsson@norran.net>,
arch@FreeBSD.ORG, linux-mm@kvack.org, sfkaplan@cs.amherst.edu
Subject: Re: RE: on load control / process swapping
Date: Wed, 16 May 2001 16:59:51 -0300 (BRST) [thread overview]
Message-ID: <Pine.LNX.4.33.0105161658530.5251-100000@duckman.distro.conectiva> (raw)
In-Reply-To: <200105161754.f4GHsCd73025@earth.backplane.com>
On Wed, 16 May 2001, Matt Dillon wrote:
> :There's one thing "wrong" with the drop-behind idea though;
> :it penalises data even when it's still in core and we're
> :reading it for the second or third time.
>
> It's not dropping the data, it's dropping the priority. And yes, it
> does penalize the data somewhat. On the otherhand if the data happens
> to still be in the cache and you scan it a second time, the page priority
> gets bumped up
But doesn't it get pushed _down_ again after the process has read
the data? Or is this a part of the code outside of vm/* which I
haven't read yet?
regards,
Rik
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next prev parent reply other threads:[~2001-05-16 19:59 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-05-16 15:17 Charles Randall
2001-05-16 17:14 ` Matt Dillon
2001-05-16 17:41 ` Rik van Riel
2001-05-16 17:54 ` Matt Dillon
2001-05-16 19:59 ` Rik van Riel [this message]
2001-05-16 20:41 ` Matt Dillon
2001-05-18 5:58 ` Terry Lambert
2001-05-18 6:20 ` Matt Dillon
2001-05-18 10:00 ` Andrew Reilly
2001-05-18 13:49 ` Jonathan Morton
2001-05-19 2:18 ` Rik van Riel
2001-05-19 2:56 ` Jonathan Morton
2001-05-16 17:57 ` Alfred Perlstein
2001-05-16 18:01 ` Matt Dillon
2001-05-16 18:10 ` Alfred Perlstein
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