From: Andrea Arcangeli <andrea@suse.de>
To: Rik van Riel <riel@conectiva.com.br>
Cc: Ingo Molnar <mingo@elte.hu>,
linux-mm@kvack.org, Linus Torvalds <torvalds@transmeta.com>,
"Stephen C. Tweedie" <sct@redhat.com>
Subject: Re: [highmem bug report against -test5 and -test6] Re: [PATCH] Re: simple FS application that hangs 2.4-test5, mem mgmt problem or FS buffer cache mgmt problem? (fwd)
Date: Mon, 2 Oct 2000 22:17:18 +0200 [thread overview]
Message-ID: <20001002221718.B21995@athlon.random> (raw)
In-Reply-To: <Pine.LNX.4.21.0010021658040.1067-100000@duckman.distro.conectiva>; from riel@conectiva.com.br on Mon, Oct 02, 2000 at 04:59:57PM -0300
On Mon, Oct 02, 2000 at 04:59:57PM -0300, Rik van Riel wrote:
> Linus, I remember you saying some time ago that you would
> like to keep the buffer heads on a page around so we'd
> have them at the point where we need to swap out again.
That's one of the basic differences between the 2.2.x and 2.4.x
page cache design. We don't reclaim the buffers at I/O completion
time anymore in 2.4.x but we reclaim them only later when we run
low on memory.
Forbidding the bh to be reclaimed when we run low on memory is a bug
and I don't think Linus ever suggested that.
Andrea
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next prev parent reply other threads:[~2000-10-02 20:17 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-02 19:35 Rik van Riel
2000-10-02 19:56 ` Andrea Arcangeli
2000-10-02 19:59 ` Rik van Riel
2000-10-02 20:17 ` Andrea Arcangeli [this message]
2000-10-02 20:24 ` Rik van Riel
2000-10-02 21:16 ` Linus Torvalds
2000-10-02 20:06 ` Linus Torvalds
2000-10-02 20:16 ` Rik van Riel
2000-10-02 20:25 ` Ingo Molnar
2000-10-02 20:45 ` Rik van Riel
2000-10-02 21:21 ` Linus Torvalds
2000-10-02 21:27 ` Rik van Riel
2000-10-02 21:19 ` Linus Torvalds
2000-10-02 21:23 ` Rik van Riel
2000-10-02 21:31 ` Linus Torvalds
2000-10-02 21:42 ` Rik van Riel
2000-10-02 21:58 ` Linus Torvalds
2000-10-02 22:08 ` Rik van Riel
2000-10-02 22:18 ` Andrea Arcangeli
2000-10-02 22:23 ` Rik van Riel
2000-10-02 23:06 ` Linus Torvalds
2000-10-02 23:12 ` Rik van Riel
2000-10-02 23:16 ` Linus Torvalds
2000-10-02 23:20 ` Andrea Arcangeli
2000-10-02 22:53 ` Linus Torvalds
2000-10-02 23:06 ` Rik van Riel
2000-10-02 23:14 ` Linus Torvalds
2000-10-02 21:57 ` Ingo Molnar
2000-10-02 21:52 ` Rik van Riel
2000-10-02 22:53 ` Ingo Molnar
2000-10-02 23:01 ` Rik van Riel
2000-10-02 23:10 ` Andrea Arcangeli
2000-10-02 23:29 ` Ingo Molnar
2000-10-02 23:25 ` Andrea Arcangeli
2000-10-02 23:32 ` Linus Torvalds
2000-10-03 12:05 ` Ingo Molnar
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