From: Christoph Lameter <clameter@engr.sgi.com>
To: Rohit Seth <rohit.seth@intel.com>
Cc: akpm@osdl.org, torvalds@osdl.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH]: Free pages from local pcp lists under tight memory conditions
Date: Wed, 23 Nov 2005 11:30:10 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.62.0511231128090.22710@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20051122161000.A22430@unix-os.sc.intel.com>
On Tue, 22 Nov 2005, Rohit Seth wrote:
> [PATCH]: This patch free pages (pcp->batch from each list at a time) from
> local pcp lists when a higher order allocation request is not able to
> get serviced from global free_list.
Ummm.. One controversial idea: How about removing the complete pcp
subsystem? Last time we disabled pcps we saw that the effect
that it had was within noise ratio on AIM7. The lru lock taken without
pcp is in the local zone and thus rarely contended.
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next prev parent reply other threads:[~2005-11-23 19:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-23 0:10 Rohit Seth
2005-11-23 5:36 ` Andrew Morton
2005-11-23 5:58 ` Andrew Morton
2005-11-23 18:17 ` Rohit Seth
2005-11-23 6:36 ` Christoph Lameter
2005-11-23 6:42 ` Christoph Lameter
2005-11-23 16:35 ` Linus Torvalds
2005-11-23 17:03 ` Christoph Lameter
2005-11-23 17:54 ` Rohit Seth
2005-11-23 18:06 ` Mel Gorman
2005-11-23 19:41 ` Rohit Seth
2005-11-24 9:25 ` Mel Gorman
2005-11-23 23:26 ` Rohit Seth
2005-11-23 19:30 ` Christoph Lameter [this message]
2005-11-23 19:46 ` Rohit Seth
2005-11-23 19:55 ` Andrew Morton
2005-11-23 21:00 ` Rohit Seth
2005-11-23 21:25 ` Christoph Lameter
2005-11-23 22:29 ` Rohit Seth
2005-11-23 21:26 ` Andrew Morton
2005-11-23 21:40 ` Rohit Seth
2005-11-24 3:02 ` Paul Jackson
2005-11-29 23:18 ` Rohit Seth
2005-12-01 14:44 ` Paul Jackson
2005-12-02 0:32 ` Nick Piggin
2005-11-23 22:01 ` Christoph Lameter
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