From: Dave McCracken <dmc@austin.ibm.com>
To: Linus Torvalds <torvalds@transmeta.com>
Cc: Daniel Phillips <phillips@arcor.de>,
Andrew Morton <akpm@digeo.com>,
linux-mm@kvack.org
Subject: Re: shared pagetable benchmarking
Date: Fri, 27 Dec 2002 14:16:34 -0600 [thread overview]
Message-ID: <47580000.1041020194@[10.1.1.5]> (raw)
In-Reply-To: <Pine.LNX.4.44.0212271201130.21930-100000@home.transmeta.com>
--On Friday, December 27, 2002 12:02:56 -0800 Linus Torvalds
<torvalds@transmeta.com> wrote:
> It doesn't break even on small forks. It _slows_them_down_.
I gave Andrew a patch that does make it break even on small forks, by doing
the copy at fork time when a process only has 3 pte pages. My tests
indicate that any process with 4 or more pte pages usually is faster by
doing the share.
Dave McCracken
--
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next prev parent reply other threads:[~2002-12-27 20:16 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-20 11:11 Andrew Morton
2002-12-20 11:13 ` William Lee Irwin III
2002-12-20 16:30 ` Dave McCracken
2002-12-20 19:59 ` Andrew Morton
2002-12-23 16:15 ` Dave McCracken
2002-12-23 23:54 ` Andrew Morton
2002-12-27 9:39 ` Daniel Phillips
2002-12-27 9:58 ` Andrew Morton
2002-12-27 15:59 ` Daniel Phillips
2002-12-27 20:02 ` Linus Torvalds
2002-12-27 20:16 ` Dave McCracken [this message]
2002-12-27 20:18 ` Linus Torvalds
2002-12-27 20:45 ` Dave McCracken
2002-12-27 20:50 ` Linus Torvalds
2002-12-27 23:56 ` Daniel Phillips
2002-12-28 0:45 ` Martin J. Bligh
2002-12-28 2:34 ` Andrew Morton
2002-12-28 3:10 ` Linus Torvalds
2002-12-28 6:58 ` Andrew Morton
2002-12-28 7:39 ` Ingo Molnar
2002-12-28 7:47 ` Linus Torvalds
2002-12-28 23:28 ` Andrew Morton
2002-12-28 3:19 ` Martin J. Bligh
2002-12-23 18:19 ` Dave McCracken
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