From: Hugh Dickins <hugh@veritas.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Linus Torvalds <torvalds@transmeta.com>,
Ben LaHaise <bcrl@redhat.com>,
Rik van Riel <riel@conectiva.com.br>,
Richard Jerrrell <jerrell@missioncriticallinux.com>,
Stephen Tweedie <sct@redhat.com>,
arjanv@redhat.com, alan@redhat.com, linux-mm@kvack.org
Subject: Re: [PATCH] swap_state.c thinko
Date: Fri, 6 Apr 2001 20:03:08 +0100 (BST) [thread overview]
Message-ID: <Pine.LNX.4.21.0104061954470.1407-100000@localhost.localdomain> (raw)
In-Reply-To: <20010406211416.B785@athlon.random>
On Fri, 6 Apr 2001, Andrea Arcangeli wrote:
> On Fri, Apr 06, 2001 at 09:09:08PM +0200, Andrea Arcangeli wrote:
> > We always overstimate anyways, we have to because we don't have information
> > about the really freeable memory (think at the buffer cache pinned in the
>
> ah, and btw, even if we would have information about the really freeable memory
> in the cache and swap cache that would still useless in real life because we
> don't reserve memory for the previous malloc calls (endless overcommit
> discussion), so allocation could still fail during page fault and process will
> have to be killed the linux way.
How indelicate you are! I've been careful to avoid all mention of that...
Seriously, there's good debate to have there, but it's another issue
(and I don't think the drawbacks of the overcommit strategy excuse
sloppy accounting on its own terms).
Hugh
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next prev parent reply other threads:[~2001-04-06 19:03 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-05 15:56 Ben LaHaise
2001-04-05 16:05 ` Rik van Riel
2001-04-05 17:11 ` Ben LaHaise
2001-04-05 23:40 ` Andrea Arcangeli
2001-04-06 0:32 ` Linus Torvalds
2001-04-06 16:31 ` Hugh Dickins
2001-04-06 17:21 ` Linus Torvalds
2001-04-06 18:23 ` Hugh Dickins
2001-04-06 18:57 ` Linus Torvalds
2001-04-06 19:06 ` Rik van Riel
2001-04-06 18:47 ` Andrea Arcangeli
2001-04-06 18:37 ` Hugh Dickins
2001-04-06 19:09 ` Andrea Arcangeli
2001-04-06 18:53 ` Hugh Dickins
2001-04-06 19:14 ` Andrea Arcangeli
2001-04-06 19:03 ` Hugh Dickins [this message]
2001-04-06 20:03 ` Andrea Arcangeli
2001-04-06 19:12 ` Richard Jerrell
2001-04-06 19:52 ` Linus Torvalds
2001-04-06 20:22 ` Andrea Arcangeli
2001-04-06 21:04 ` Rik van Riel
2001-04-07 1:27 ` Andrea Arcangeli
2001-04-09 18:16 ` Alan Cox
2001-04-09 18:45 ` Andrea Arcangeli
2001-04-09 20:32 ` Linus Torvalds
2001-04-09 20:54 ` David L. Parsley
2001-04-10 21:07 ` James Antill
2001-04-10 22:20 ` Jeff Garzik
2001-04-06 20:48 ` Hugh Dickins
2001-04-05 17:21 ` Hugh Dickins
2001-04-05 21:39 ` Richard Jerrell
2001-04-06 20:20 Bulent Abali
2001-04-06 20:33 ` Jeff Garzik
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