From: Andi Kleen <ak@muc.de>
To: Steve Lord <lord@xfs.org>
Cc: arjanv@redhat.com, akpm@osdl.org, linux-kernel@vger.kernel.org
Subject: Re: 2.6.6-rc3-mm2 (4KSTACK)
Date: Fri, 07 May 2004 20:38:07 +0200 [thread overview]
Message-ID: <m3fzachyls.fsf@averell.firstfloor.org> (raw)
In-Reply-To: <1Tgf4-5cp-27@gated-at.bofh.it> (Steve Lord's message of "Fri, 07 May 2004 18:20:14 +0200")
Steve Lord <lord@xfs.org> writes:
> That was not really my point, consider any memory allocation on the
> stack which is being replaced with an allocate to save space. Then replace
> the saved stack space with the potential stack space used to
> free memory by writing it out via a filesystem. You cannot make all
> the allocations in the kernel GFP_NOFS.
I suspect making memory reclamation less multithreaded (doing
it in specialized threads only) would be actually a good thing.
I remember there were lots of races in the past with too many
memory reclaimers in parallel that were just papered over with
various hacks. Maybe doing it with less threads would make
this all a bit more controlled.
The question is just how many threads it would need and if
any of the existing threads can do the job.
Overall it sounds more like 2.7 material.
-Andi
next parent reply other threads:[~2004-05-07 20:39 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
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[not found] ` <1Tgf4-5cp-27@gated-at.bofh.it>
2004-05-07 18:38 ` Andi Kleen [this message]
2004-05-06 9:48 2.6.6-rc3-mm2 (4KSTACK) Sid Boyce
-- strict thread matches above, loose matches on Subject: below --
2004-05-06 9:12 h.verhagen
2004-05-06 9:06 h.verhagen
2004-05-05 8:31 2.6.6-rc3-mm2 Andrew Morton
2004-05-05 11:12 ` 2.6.6-rc3-mm2 (4KSTACK) Dominik Karall
2004-05-05 11:10 ` Ralf Hildebrandt
2004-05-05 11:13 ` Jan-Benedict Glaw
2004-05-05 11:24 ` Arjan van de Ven
2004-05-05 11:30 ` Andrew Morton
2004-05-05 12:09 ` Rene Herman
2004-05-05 16:47 ` Steve Lord
2004-05-05 18:48 ` Felipe Alfaro Solana
2004-05-05 19:51 ` Arjan van de Ven
2004-05-05 19:56 ` Steve Lord
2004-05-05 19:59 ` Arjan van de Ven
2004-05-06 17:44 ` Max Valdez
2004-05-05 20:31 ` Bill Davidsen
2004-05-05 23:04 ` Bartlomiej Zolnierkiewicz
2004-05-06 12:55 ` Norberto Bensa
2004-05-06 13:33 ` Bartlomiej Zolnierkiewicz
2004-05-06 18:47 ` Norberto Bensa
2004-05-09 17:00 ` Bill Davidsen
2004-05-09 18:25 ` Bartlomiej Zolnierkiewicz
2004-05-11 16:24 ` Bill Davidsen
2004-05-11 23:27 ` Bartlomiej Zolnierkiewicz
2004-05-11 23:50 ` Andrew Morton
2004-05-12 0:05 ` Valdis.Kletnieks
2004-05-12 16:07 ` Bill Davidsen
2004-05-12 16:20 ` Arjan van de Ven
2004-05-15 19:48 ` Bill Davidsen
2004-05-06 10:09 ` Helge Hafting
2004-05-06 12:54 ` Bill Davidsen
2004-05-05 18:22 ` Valdis.Kletnieks
2004-05-05 21:51 ` Jörn Engel
2004-05-06 15:18 ` Valdis.Kletnieks
2004-05-06 15:40 ` Arjan van de Ven
2004-05-06 16:29 ` Valdis.Kletnieks
2004-05-07 9:50 ` Helge Hafting
2004-05-07 0:37 ` Paul Jakma
2004-05-07 2:50 ` Andrew Morton
2004-05-07 3:44 ` Paul Jakma
2004-05-07 3:58 ` Andrew Morton
2004-05-07 7:05 ` Arjan van de Ven
2004-05-07 15:26 ` Martin J. Bligh
2004-05-07 19:41 ` Andrew Morton
2004-05-07 6:51 ` Arjan van de Ven
2004-05-07 15:13 ` Dave Jones
2004-05-07 15:47 ` Steve Lord
2004-05-07 15:59 ` Arjan van de Ven
2004-05-07 16:09 ` J. Bruce Fields
2004-05-07 16:11 ` Steve Lord
2004-05-07 16:28 ` Jörn Engel
2004-05-07 19:45 ` Paul Jakma
2004-05-07 19:48 ` Paul Jakma
2004-05-10 19:49 ` Bill Davidsen
2004-05-10 20:31 ` Horst von Brand
2004-05-11 2:39 ` Andrew Morton
2004-05-11 8:45 ` Helge Hafting
2004-05-06 16:03 ` Malte Schröder
2004-05-06 16:13 ` Valdis.Kletnieks
2004-05-06 17:05 ` Matt Mackall
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