From: Rik van Riel <riel@redhat.com>
To: Jakub Jelinek <jakub@redhat.com>
Cc: Ulrich Drepper <drepper@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Andi Kleen <andi@firstfloor.org>,
Linux Kernel <linux-kernel@vger.kernel.org>,
linux-mm@kvack.org, Hugh Dickins <hugh@veritas.com>
Subject: Re: missing madvise functionality
Date: Tue, 03 Apr 2007 16:38:28 -0400 [thread overview]
Message-ID: <4612BB44.3060100@redhat.com> (raw)
In-Reply-To: <20070403202937.GE355@devserv.devel.redhat.com>
Jakub Jelinek wrote:
> My guess is that all the page zeroing is pretty expensive as well and
> takes significant time, but I haven't profiled it.
I'm pretty sure that page freeing, reallocating and zeroing
is more expensive than just letting the page sit there and
only reclaim it lazily when we need the memory.
I'll try to whip up a patch this week.
--
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the best in the world, and those who believe it already is. Each group
calls the other unpatriotic.
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next prev parent reply other threads:[~2007-04-03 20:38 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <46128051.9000609@redhat.com>
[not found] ` <p73648dz5oa.fsf@bingen.suse.de>
[not found] ` <46128CC2.9090809@redhat.com>
[not found] ` <20070403172841.GB23689@one.firstfloor.org>
2007-04-03 19:59 ` Andrew Morton
2007-04-03 20:09 ` Andi Kleen
2007-04-03 20:17 ` Ulrich Drepper
2007-04-03 20:29 ` Jakub Jelinek
2007-04-03 20:38 ` Rik van Riel [this message]
2007-04-03 21:49 ` Andrew Morton
2007-04-03 23:01 ` Eric Dumazet
2007-04-04 2:22 ` Nick Piggin
2007-04-04 5:41 ` Eric Dumazet
2007-04-04 6:09 ` [patches] threaded vma patches (was Re: missing madvise functionality) Nick Piggin
2007-04-04 6:26 ` Andrew Morton
2007-04-04 6:38 ` Nick Piggin
2007-04-04 6:42 ` Ulrich Drepper
2007-04-04 6:44 ` Nick Piggin
2007-04-04 6:50 ` Eric Dumazet
2007-04-04 6:54 ` Ulrich Drepper
2007-04-04 7:33 ` Eric Dumazet
2007-04-04 8:25 ` missing madvise functionality Peter Zijlstra
2007-04-04 8:55 ` Nick Piggin
2007-04-04 9:12 ` William Lee Irwin III
2007-04-04 9:23 ` Nick Piggin
2007-04-04 9:34 ` Eric Dumazet
2007-04-04 9:45 ` Nick Piggin
2007-04-04 10:05 ` Nick Piggin
2007-04-04 11:54 ` Eric Dumazet
2007-04-05 2:01 ` Nick Piggin
2007-04-05 6:09 ` Eric Dumazet
2007-04-05 6:19 ` Ulrich Drepper
2007-04-05 6:54 ` Eric Dumazet
2007-04-03 23:02 ` Andrew Morton
2007-04-04 9:15 ` Hugh Dickins
2007-04-04 14:55 ` Rik van Riel
2007-04-04 15:25 ` Hugh Dickins
2007-04-05 1:44 ` Nick Piggin
2007-04-04 18:04 ` Andrew Morton
2007-04-04 18:08 ` Rik van Riel
2007-04-04 20:56 ` Andrew Morton
2007-04-04 18:39 ` Hugh Dickins
2007-04-03 23:44 ` Andrew Morton
2007-04-04 13:09 ` William Lee Irwin III
2007-04-04 13:38 ` William Lee Irwin III
2007-04-04 18:51 ` Andrew Morton
2007-04-05 4:14 ` William Lee Irwin III
2007-04-04 23:00 ` preemption and rwsems (was: Re: missing madvise functionality) Andrew Morton
2007-04-05 7:31 ` missing madvise functionality Rik van Riel
2007-04-05 7:39 ` Rik van Riel
2007-04-05 8:32 ` Andrew Morton
2007-04-05 15:47 ` Rik van Riel
2007-04-05 8:08 ` Eric Dumazet
2007-04-05 8:31 ` Rik van Riel
2007-04-05 9:06 ` Eric Dumazet
2007-04-05 9:45 ` Jakub Jelinek
2007-04-05 16:15 ` Rik van Riel
2007-04-05 16:10 ` Ulrich Drepper
2007-04-06 2:28 ` Nick Piggin
2007-04-06 2:52 ` Ulrich Drepper
2007-04-06 2:59 ` Nick Piggin
2007-04-05 12:48 ` preemption and rwsems (was: Re: missing madvise functionality) David Howells
2007-04-05 19:11 ` Ingo Molnar
2007-04-05 20:37 ` Andrew Morton
2007-04-06 9:08 ` Ingo Molnar
2007-04-06 19:30 ` Andrew Morton
2007-04-06 19:40 ` Ingo Molnar
2007-04-05 19:27 ` Andrew Morton
2007-04-03 20:51 ` missing madvise functionality Andrew Morton
2007-04-03 20:57 ` Ulrich Drepper
2007-04-03 21:00 ` Rik van Riel
2007-04-03 21:10 ` Eric Dumazet
2007-04-03 21:12 ` Jörn Engel
2007-04-03 21:15 ` Rik van Riel
2007-04-03 21:30 ` Eric Dumazet
2007-04-03 21:22 ` Jeremy Fitzhardinge
2007-04-03 21:29 ` Rik van Riel
2007-04-03 21:46 ` Ulrich Drepper
2007-04-03 22:51 ` Andi Kleen
2007-04-03 23:07 ` Ulrich Drepper
2007-04-03 21:16 ` Andrew Morton
2007-04-04 18:49 ` Anton Blanchard
2007-04-04 7:46 ` Nick Piggin
2007-04-04 8:04 ` Nick Piggin
2007-04-04 8:20 ` Jakub Jelinek
2007-04-04 8:47 ` Nick Piggin
2007-04-05 4:23 ` Nick Piggin
2007-04-05 18:38 ` Rik van Riel
2007-04-05 21:07 ` Andrew Morton
2007-04-05 21:39 ` Rik van Riel
2007-04-06 1:28 ` Nick Piggin
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