From: Helge Hafting <helgehaf@aitel.hist.no>
To: Momchil Velikov <velco@fadata.bg>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: Note describing poor dcache utilization under high memory pressure
Date: Tue, 29 Jan 2002 12:54:21 +0100 [thread overview]
Message-ID: <3C568D6D.ACDEA36C@aitel.hist.no> (raw)
In-Reply-To: <Pine.LNX.4.44.0201281918050.18405-100000@waste.org> <87lmehft5b.fsf@fadata.bg> <E16VU2h-00009Y-00@starship.berlin> <87g04pfr8y.fsf@fadata.bg>
Momchil Velikov wrote:
>
> >>>>> "Daniel" == Daniel Phillips <phillips@bonn-fries.net> writes:
[...]
> Daniel> It's only touching the ptes on tables that are actually used, so if a parent
> Daniel> with a massive amount of mapped memory forks a child that only instantiates
> Daniel> a small portion of it (common situation) then the saving is pretty big.
>
> Umm, all the ptes af the parent ought to be made COW, no ?
Sure. But quite a few of them may be COW already, if the parent
itself is a result of some earlier fork.
Helge Hafting
next prev parent reply other threads:[~2002-01-29 11:57 UTC|newest]
Thread overview: 85+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-01-28 17:13 Josh MacDonald
2002-01-28 17:39 ` Linus Torvalds
2002-01-28 18:01 ` Rik van Riel
2002-01-28 18:21 ` Linus Torvalds
2002-01-28 18:37 ` Rik van Riel
2002-01-28 19:28 ` William Lee Irwin III
2002-01-28 20:01 ` Daniel Phillips
2002-01-28 21:33 ` Rick Stevens
2002-01-28 21:43 ` Rik van Riel
2002-01-28 22:00 ` Rick Stevens
2002-01-28 22:43 ` Daniel Phillips
2002-01-28 23:06 ` Rick Stevens
2002-01-28 23:51 ` [OT] " jepler
2002-01-29 2:30 ` IPmonger
2002-01-29 12:02 ` Karl & Betty Schendel
2002-01-28 22:26 ` Daniel Phillips
2002-01-28 22:34 ` Brian Gerst
2002-01-28 23:08 ` Daniel Phillips
2002-01-28 22:39 ` Daniel Phillips
2002-01-28 23:12 ` Rick Stevens
2002-01-28 23:27 ` Daniel Phillips
2002-01-28 22:01 ` Momchil Velikov
2002-01-28 22:19 ` Daniel Phillips
2002-01-29 1:29 ` Oliver Xymoron
2002-01-29 1:37 ` [reiserfs-list] " Valdis.Kletnieks
2002-01-29 1:45 ` Daniel Phillips
2002-01-29 8:39 ` Momchil Velikov
2002-01-29 8:55 ` Daniel Phillips
2002-01-29 9:20 ` William Lee Irwin III
2002-01-29 9:55 ` Daniel Phillips
2002-01-29 10:18 ` Momchil Velikov
2002-01-29 19:55 ` William Lee Irwin III
2002-01-29 20:08 ` Linus Torvalds
2002-01-29 20:39 ` William Lee Irwin III
2002-01-29 20:49 ` Linus Torvalds
2002-01-29 21:01 ` William Lee Irwin III
2002-01-29 9:20 ` Momchil Velikov
2002-01-29 10:27 ` Daniel Phillips
2002-01-29 11:54 ` Helge Hafting [this message]
2002-01-29 12:33 ` Daniel Phillips
2002-01-30 9:07 ` Horst von Brand
2002-01-30 10:55 ` Daniel Phillips
2002-01-30 14:46 ` Rik van Riel
2002-01-30 14:59 ` Daniel Phillips
2002-01-30 15:54 ` Rik van Riel
2002-01-30 16:34 ` Daniel Phillips
2002-01-29 10:59 ` Rik van Riel
2002-01-29 11:28 ` Daniel Phillips
2002-01-29 11:38 ` Rik van Riel
2002-01-29 12:01 ` Daniel Phillips
2002-01-29 16:57 ` Oliver Xymoron
2002-01-29 17:25 ` Rik van Riel
2002-01-29 20:48 ` Daniel Phillips
2002-01-29 21:00 ` Oliver Xymoron
2002-01-29 21:08 ` Linus Torvalds
2002-01-29 21:13 ` Oliver Xymoron
2002-01-29 21:50 ` Linus Torvalds
2002-01-29 22:02 ` Oliver Xymoron
2002-01-29 22:10 ` Linus Torvalds
2002-01-29 22:53 ` Daniel Phillips
2002-01-29 22:53 ` Daniel Phillips
2002-01-29 23:02 ` Oliver Xymoron
2002-01-29 23:21 ` Daniel Phillips
2002-01-28 19:25 ` [reiserfs-dev] " Hans Reiser
2002-01-28 23:52 ` Daniel Phillips
2002-01-29 0:16 ` Hans Reiser
2002-01-29 0:30 ` Alexander Viro
2002-01-29 10:46 ` Hans Reiser
2002-01-29 14:50 ` Chris Mason
2002-01-29 21:10 ` Hans Reiser
2002-01-30 7:11 ` Oliver Xymoron
2002-01-30 9:57 ` Hans Reiser
2002-01-29 17:28 ` Josh MacDonald
2002-01-29 18:44 ` [reiserfs-list] " Andreas Dilger
2002-01-29 19:55 ` Andrew Morton
2002-01-30 7:17 ` Oliver Xymoron
2002-01-30 7:32 ` [reiserfs-list] Re: [reiserfs-dev] Re: Note describing poordcache " Andrew Morton
2002-01-30 7:52 ` Oliver Xymoron
2002-01-30 10:03 ` Hans Reiser
2002-01-30 10:07 ` [reiserfs-dev] Re: Note describing poor dcache " Horst von Brand
2002-01-29 18:29 ` Horst von Brand
2002-01-29 0:51 ` Daniel Phillips
2002-01-29 1:32 ` Daniel Phillips
2002-01-28 22:46 ` Alex Bligh - linux-kernel
2002-01-29 17:27 ` Josh MacDonald
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