From: Christoph Rohland <hans-christoph.rohland@sap.com>
To: Andrea Arcangeli <andrea@suse.de>
Cc: Christoph Rohland <hans-christoph.rohland@sap.com>,
Ingo Molnar <mingo@chiara.csoma.elte.hu>,
Rik van Riel <riel@nl.linux.org>,
MM mailing list <linux-mm@kvack.org>,
woodman@missioncriticallinux.com,
Linus Torvalds <torvalds@transmeta.com>
Subject: Re: [Patch] shm cleanups
Date: 05 Nov 1999 17:28:19 +0100 [thread overview]
Message-ID: <qwwwvrw9a3g.fsf@sap.com> (raw)
In-Reply-To: Andrea Arcangeli's message of "Fri, 5 Nov 1999 17:21:05 +0100 (CET)"
Andrea Arcangeli <andrea@suse.de> writes:
> On 5 Nov 1999, Christoph Rohland wrote:
>
> >Yes I know it is questionable, but if prepare_highmem_swapout fails we
> >are in the highmem area and probably most of the rest of shm is also
> >there. So we only consume a lot of CPU if going on and calling
>
> If prepare_highmem_swapout fails maybe all the regular pages are allocated
> in the rest of the shm segment and to free them and do progresses you
> should continue to properly shrink the VM.
>
> >prepare_highmem_swapout again and again..
>
> That will happen in the patological unlikely to happen case so the
> performance of such path is not an issue.
So we only need the first part of the patch.
Christoph
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next prev parent reply other threads:[~1999-11-05 16:28 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-11-03 21:30 [Patch] shm cleanups Christoph Rohland
1999-11-04 8:10 ` Ingo Molnar
1999-11-04 12:40 ` Christoph Rohland
1999-11-04 17:58 ` Ingo Molnar
1999-11-04 19:02 ` Rik van Riel
1999-11-04 22:30 ` Ingo Molnar
1999-11-05 0:14 ` Andrea Arcangeli
1999-11-05 12:35 ` Christoph Rohland
1999-11-05 13:18 ` Andrea Arcangeli
1999-11-05 16:16 ` Christoph Rohland
1999-11-05 16:21 ` Andrea Arcangeli
1999-11-05 16:28 ` Christoph Rohland [this message]
1999-11-05 10:36 ` Christoph Rohland
-- strict thread matches above, loose matches on Subject: below --
1999-11-03 19:17 Christoph Rohland
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