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From: Andrea Arcangeli <andrea@suse.de>
To: Marcelo Tosatti <marcelo@conectiva.com.br>
Cc: Linus Torvalds <torvalds@transmeta.com>,
	Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux 2.4.10-pre11
Date: Tue, 18 Sep 2001 07:59:27 +0200	[thread overview]
Message-ID: <20010918075927.I698@athlon.random> (raw)
In-Reply-To: <20010918073248.G698@athlon.random> <Pine.LNX.4.21.0109180111550.7152-100000@freak.distro.conectiva>
In-Reply-To: <Pine.LNX.4.21.0109180111550.7152-100000@freak.distro.conectiva>; from marcelo@conectiva.com.br on Tue, Sep 18, 2001 at 01:14:36AM -0300

On Tue, Sep 18, 2001 at 01:14:36AM -0300, Marcelo Tosatti wrote:
> Note that in 2.4 we scan pte's even if there is no free pages
> shortage, while in 2.2 we only scan pte's if there is a free page
> shortage.

That was most certainly a problem which is now fixed. Mainly the
preallication of swap was a waste. But I think there was a kind of
physical (not pte) overaging too that forbidden the vm to react
properly.

I believe when the storm of swap_out startups it won't matter any longer
what we aged and whatever pte scanning we did previously. At least with
the current swap_out.

Andrea

  reply	other threads:[~2001-09-18  5:59 UTC|newest]

Thread overview: 110+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-09-18  0:08 Linux 2.4.10-pre11 Linus Torvalds
2001-09-17 23:17 ` Marcelo Tosatti
2001-09-18  1:08   ` Marcelo Tosatti
2001-09-18  3:37     ` Andrea Arcangeli
2001-09-18  2:25       ` Marcelo Tosatti
2001-09-18  3:58         ` Andrea Arcangeli
2001-09-18  2:53           ` Marcelo Tosatti
2001-09-18  4:54             ` Andrea Arcangeli
2001-09-18  3:33               ` Marcelo Tosatti
2001-09-18  5:06                 ` Andrea Arcangeli
2001-09-18  3:55                   ` Marcelo Tosatti
2001-09-18  5:32                     ` Andrea Arcangeli
2001-09-18  4:14                       ` Marcelo Tosatti
2001-09-18  5:59                         ` Andrea Arcangeli [this message]
2001-09-18  5:00                       ` Marcelo Tosatti
     [not found] ` <20010917211834.A31693@redhat.com>
     [not found]   ` <20010918035055.J698@athlon.random>
2001-09-18  2:02     ` Andrea Arcangeli
     [not found]     ` <20010917221653.B31693@redhat.com>
2001-09-18  2:27       ` Linus Torvalds
2001-09-18  3:14         ` Alan Cox
2001-09-18  3:26         ` Andrea Arcangeli
     [not found]       ` <20010918052201.N698@athlon.random>
2001-09-18  4:01         ` Benjamin LaHaise
2001-09-18  4:39           ` Andrea Arcangeli
2001-09-18  5:04             ` Alan Cox
2001-09-18  5:09               ` Andrea Arcangeli
2001-09-18  5:22             ` Benjamin LaHaise
2001-09-18  5:48               ` Andrea Arcangeli
2001-09-18  5:48 ` Andrew Morton
2001-09-18  6:11   ` Andrea Arcangeli
2001-09-18  5:02     ` Marcelo Tosatti
2001-09-18  6:40       ` Andrea Arcangeli
2001-09-18 16:06         ` Marcelo Tosatti
2001-09-18 19:18           ` Marcelo Tosatti
2001-09-18 21:05             ` Andrea Arcangeli
2001-09-19 13:57               ` Rik van Riel
2001-09-18 10:58   ` Martin Dalecki
2001-09-18  9:31 ` Alexander Viro
2001-09-18  9:39   ` Andrea Arcangeli
2001-09-18  9:44     ` Alexander Viro
2001-09-18  9:57       ` Andrea Arcangeli
2001-09-18 10:02         ` Alexander Viro
2001-09-18 10:17           ` Andrea Arcangeli
2001-09-18 10:28             ` Alexander Viro
2001-09-18 10:35               ` Andrea Arcangeli
2001-09-18 10:52                 ` Alexander Viro
2001-09-18 11:05             ` Helge Hafting
2001-09-18 12:40               ` Andrea Arcangeli
2001-09-18 17:02             ` Linus Torvalds
2001-09-18 16:45   ` Linus Torvalds
2001-09-18 18:19     ` Alexander Viro
2001-09-18 18:27       ` Linus Torvalds
2001-09-18 19:14         ` Andreas Dilger
2001-09-18 19:41           ` Alexander Viro
2001-09-18 20:33             ` Richard Gooch
2001-09-18 20:53               ` Alexander Viro
2001-09-18 21:06                 ` Richard Gooch
2001-09-18 21:27                   ` Alexander Viro
2001-09-18 20:17           ` Stephan von Krawczynski
2001-09-18 20:33             ` Alan Cox
2001-09-19 13:42             ` Rik van Riel
2001-09-19 14:27               ` Alexander Viro
2001-09-19  2:59           ` Michael Peddemors
2001-09-18 19:29         ` Benjamin LaHaise
2001-09-19 16:11         ` Alexander Viro
2001-09-19 18:25           ` Andrea Arcangeli
2001-09-19 19:21             ` Alexander Viro
2001-09-19 20:41               ` Richard Gooch
2001-09-19 20:55               ` Andrea Arcangeli
2001-09-19 21:17                 ` Alexander Viro
2001-09-19 22:15                   ` Richard Gooch
2001-09-19 23:01                   ` Andrea Arcangeli
2001-09-19 23:03                   ` Andrea Arcangeli
2001-09-19 23:30                     ` Alexander Viro
2001-09-19 23:40                       ` Andrea Arcangeli
2001-09-20 13:56                         ` Alexander Viro
2001-09-20 14:38                           ` Chris Mason
2001-09-20 14:50                             ` Alexander Viro
2001-09-20 15:44                               ` Chris Mason
2001-09-20 16:43                                 ` Alexander Viro
2001-09-20 20:54                                   ` [PATCH] fs/block_dev.c cleanup Alexander Viro
2001-09-20  2:34               ` Linux 2.4.10-pre11 Andrea Arcangeli
2001-09-20 10:52                 ` Alexander Viro
2001-09-20 18:18                   ` Andrea Arcangeli
2001-09-20 18:33                     ` Alexander Viro
2001-09-20 18:59                       ` Andrea Arcangeli
2001-09-20 20:41                         ` Alexander Viro
2001-09-20 21:18                           ` Andrea Arcangeli
2001-09-20 21:40                             ` Alexander Viro
2001-09-20 22:13                               ` Andrea Arcangeli
2001-09-20 22:20                                 ` Alexander Viro
2001-09-20 22:31                                   ` Andrea Arcangeli
2001-09-20 22:44                                     ` Alexander Viro
2001-09-20 23:03                                       ` Andrea Arcangeli
2001-09-20 23:11                                         ` Alexander Viro
2001-09-21  1:50                                           ` Alexander Viro
2001-09-21  2:42                                             ` Andrea Arcangeli
2001-09-21  3:47                                         ` Andrea Arcangeli
2001-09-21  4:00                                           ` Alexander Viro
2001-09-21  4:06                                             ` Andrea Arcangeli
2001-09-21  4:06                                           ` Andrea Arcangeli
2001-09-21  4:46                                             ` Andrea Arcangeli
2001-09-21  7:09                                               ` Andrea Arcangeli
2001-09-19 13:38       ` Rik van Riel
2001-09-19 16:35       ` Andrea Arcangeli
  -- strict thread matches above, loose matches on Subject: below --
2001-09-18  3:18 Ed Tomlinson
2001-09-18  2:31 ` Magnus Naeslund(f)
2001-09-18  2:49   ` David B. Stevens
2001-09-18  3:38   ` Ed Tomlinson
2001-09-18  3:15 ` Alan Cox
2001-09-18  4:41   ` H. Peter Anvin
2001-09-18  6:14 Alexei Podtelezhnikov
2001-09-18 13:51 ` Rik van Riel

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