From: Arjan van de Ven <arjanv@redhat.com>
To: Andrew Morton <akpm@osdl.org>
Cc: Wolfgang Wander <wwc@rentec.com>, mingo@elte.hu, linux-mm@kvack.org
Subject: Re: Fw: [Bug 4520] New: /proc/*/maps fragments too quickly compared to
Date: Mon, 9 May 2005 23:30:28 +0200 [thread overview]
Message-ID: <20050509213027.GA3963@devserv.devel.redhat.com> (raw)
In-Reply-To: <20050509142651.1d3ae91e.akpm@osdl.org>
On Mon, May 09, 2005 at 02:26:51PM -0700, Andrew Morton wrote:
> Possibly for the 2.6.12 release the safest approach would be to just
> disable the free area cache while we think about it.
the free area cache either is historically tricky to be fair; it has the
thankless job of either keeping at the "ealiest" small hole (and thus being
useless if most allocs are bigger than that hole) or leaving an occasionally
small hole alone and thus fragmenting memory more, like you've shown.
I like neither to be honest; the price however is a higher lookup cost (well
mitigated if vma merging is really effective)
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next prev parent reply other threads:[~2005-05-09 21:30 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-05-09 13:30 Wolfgang Wander
2005-05-09 21:26 ` Andrew Morton
2005-05-09 21:30 ` Arjan van de Ven [this message]
2005-05-10 13:23 ` Wolfgang Wander
2005-05-10 15:35 ` Chen, Kenneth W
2005-05-10 18:58 ` Andrew Morton
2005-05-10 19:07 ` Arjan van de Ven
2005-05-10 19:34 ` Chen, Kenneth W
2005-05-10 19:43 ` Andrew Morton
2005-05-10 19:50 ` Wolfgang Wander
2005-05-10 19:57 ` Andrew Morton
2005-05-11 14:36 ` [PATCH] Avoiding mmap fragmentation (against 2.6.12-rc4) to Wolfgang Wander
2005-05-11 15:05 ` Chen, Kenneth W
2005-05-12 0:59 ` Andrew Morton
2005-05-12 1:33 ` Wolfgang Wander
2005-05-12 7:07 ` Ingo Molnar
2005-05-12 7:14 ` Ingo Molnar
2005-05-10 19:58 ` Fw: [Bug 4520] New: /proc/*/maps fragments too quickly compared to Ingo Molnar
2005-05-10 20:04 ` Wolfgang Wander
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