From: Dieter Nützel <Dieter.Nuetzel@hamburg.de>
To: "Linus Torvalds" <torvalds@transmeta.com>
Cc: "Linux Kernel List" <linux-kernel@vger.kernel.org>
Subject: Re: Linux 2.4.2 fails to merge mmap areas, 700% slowdown.
Date: Wed, 21 Mar 2001 03:02:13 +0100 [thread overview]
Message-ID: <01032103021300.21085@SunWave1> (raw)
Linus Torvalds <torvalds@transmeta.com> writes:
>
> Cool. Somebody actually found a real case.
>
> I'll fix the mmap case asap. Its' not hard, I just waited to see if it
> ever actually triggers. Something like g++ certainly counts as major.
I do daily builds of the VTK CVS tree (The Visualization Toolkit,
www.kitware.com/vtk.html, a huge 3D app).
~33 MB C++ source
It took ~1 hour on my K7 550, 256 MB, IBM DTL-307030, glibc-2.2 and
gcc-2.95.2 ( 19991024 (release)) under most of the 2.4-test kernels (all with
ReiserFS) for a whole rebuild.
Now it take nearly 1 and a half hour with 2.4.2-ac20.
BTW My mouse (PS2) is very sluggished during C++ compilations, now.
I am open for all of your patches. Or should I better say most :-)))
Cheers,
Dieter
--
Dieter Nützel
Graduate Student, Computer Science
University of Hamburg
Department of Computer Science
Cognitive Systems Group
Vogt-Kölln-Straße 30
D-22527 Hamburg, Germany
email: nuetzel@kogs.informatik.uni-hamburg.de
@home: Dieter.Nuetzel@hamburg.de
next reply other threads:[~2001-03-21 2:02 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-03-21 2:02 Dieter Nützel [this message]
-- strict thread matches above, loose matches on Subject: below --
2001-03-20 18:28 Linux 2.4.2 fails to merge mmap areas, 700% slowdown Serge Orlov
2001-03-20 18:43 ` Linus Torvalds
2001-03-20 18:59 ` Jakob Østergaard
2001-03-21 1:20 ` Kevin Buhr
2001-03-21 1:38 ` David S. Miller
2001-03-21 20:19 ` Kevin Buhr
2001-03-22 18:23 ` Kevin Buhr
2001-03-22 18:35 ` Jakob Østergaard
2001-03-23 4:32 ` Kevin Buhr
2001-03-24 4:11 ` Zack Weinberg
2001-03-24 21:46 ` Kevin Buhr
2001-03-24 5:02 ` Linus Torvalds
2001-03-24 9:31 ` Jakob Østergaard
2001-03-24 9:48 ` Jakob Østergaard
2001-03-24 19:54 ` Kevin Buhr
2001-03-25 3:17 ` Jakob Østergaard
2001-03-25 16:47 ` Jamie Lokier
[not found] ` <200103240502.VAA02673@penguin.transmeta.com>
2001-03-24 21:22 ` Kevin Buhr
2001-03-25 3:37 ` Linus Torvalds
2001-03-26 4:22 ` Kevin Buhr
2001-03-23 20:43 ` James Lewis Nance
2001-03-21 6:41 ` Mike Galbraith
2001-03-21 14:56 ` Matthias Urlichs
2001-03-21 15:05 ` Mike Galbraith
2001-03-21 15:59 ` Kurt Garloff
2001-03-21 16:45 ` Mike Galbraith
2001-03-21 20:16 ` Kevin Buhr
2001-03-22 9:04 ` Mike Galbraith
2001-03-22 22:19 ` Kevin Buhr
2001-03-23 7:44 ` Mike Galbraith
2001-03-20 18:43 ` Jakob Østergaard
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