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Message-Id: <1BAC48C3-2AF2-4FA2-9762-85727068BF64@gmail.com>
Date: Tue, 23 Mar 2010 19:19:22 +0100
From: Anton Starikov <ant.starikov@...il.com>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Ingo Molnar <mingo@...e.hu>,
Linus Torvalds <torvalds@...ux-foundation.org>,
linux-mm@...ck.org, linux-kernel@...r.kernel.org,
bugzilla-daemon@...zilla.kernel.org,
bugme-daemon@...zilla.kernel.org,
Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [Bugme-new] [Bug 15618] New: 2.6.18->2.6.32->2.6.33 huge regression in performance
On Mar 23, 2010, at 7:13 PM, Andrew Morton wrote:
> Anton, we have an executable binary in the bugzilla report but it would
> be nice to also have at least a description of what that code is
> actually doing. A quick strace shows quite a lot of mprotect activity.
> A pseudo-code walkthrough, perhaps?
Right now can't say too much about the code (we just gave a chance to neighbor group to run their code on our cluster, so I'm totally unfriendly with this code). I will forward your question to them.
But probably right now you can get more information (including sources) here http://fmt.cs.utwente.nl/tools/ltsmin/
Anton--
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