From: Rik van Riel <riel@conectiva.com.br>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
Cc: Linus Torvalds <torvalds@transmeta.com>,
Zlatko Calusic <zlatko@iskon.hr>,
linux-mm@kvack.org
Subject: Re: pre2 swap_out() changes
Date: Wed, 17 Jan 2001 18:05:25 +1100 (EST) [thread overview]
Message-ID: <Pine.LNX.4.31.0101171804160.30841-100000@localhost.localdomain> (raw)
In-Reply-To: <Pine.LNX.4.21.0101122038420.10842-100000@freak.distro.conectiva>
On Fri, 12 Jan 2001, Marcelo Tosatti wrote:
> On Fri, 12 Jan 2001, Linus Torvalds wrote:
>
> > If the page truly is new (because of some other user), then page_launder()
> > won't drop it, and it doesn't matter. But dropping it from the VM means
> > that the list handling can work right, and that the page will be aged (and
> > thrown out) at the same rate as other pages.
>
> What about the amount of faults this potentially causes?
The change has 2 influences on the number of faults:
1. the number of soft faults should probably increase
2. refill_inactive_scan() can deactivate more pages, since
less pages will be trapped inside processes ... this can
lead to better page replacement and less hard page faults
regards,
Rik
--
Virtual memory is like a game you can't win;
However, without VM there's truly nothing to lose...
http://www.surriel.com/
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next prev parent reply other threads:[~2001-01-17 7:05 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-11 10:38 Marcelo Tosatti
2001-01-11 18:49 ` Linus Torvalds
2001-01-12 11:35 ` Zlatko Calusic
2001-01-12 19:45 ` Linus Torvalds
2001-01-12 19:22 ` Marcelo Tosatti
2001-01-13 0:23 ` Linus Torvalds
2001-01-12 22:41 ` Marcelo Tosatti
2001-01-13 0:45 ` Linus Torvalds
2001-01-17 7:05 ` Rik van Riel [this message]
2001-01-18 11:54 ` Rik van Riel
2001-01-13 11:41 ` Zlatko Calusic
2001-01-17 7:08 ` Rik van Riel
2001-01-13 11:51 ` Zlatko Calusic
2001-01-14 2:39 ` Marcelo Tosatti
2001-01-14 4:36 ` Linus Torvalds
2001-01-14 3:50 ` Marcelo Tosatti
2001-01-14 15:51 ` Ed Tomlinson
2001-01-14 14:13 ` Marcelo Tosatti
2001-01-14 16:15 ` Zlatko Calusic
2001-01-14 17:22 ` Zlatko Calusic
2001-01-17 7:16 ` Rik van Riel
2001-01-17 7:15 ` Rik van Riel
2001-01-17 7:12 ` Rik van Riel
2001-01-11 20:52 Benjamin Redelings I
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