From: Paul Jackson <pj@sgi.com>
To: Eric Dumazet <dada1@cosmosbay.com>
Cc: clameter@engr.sgi.com, akpm@osdl.org,
linux-kernel@vger.kernel.org, nickpiggin@yahoo.com.au,
Simon.Derr@bull.net, ak@suse.de
Subject: Re: [PATCH] Cpuset: rcu optimization of page alloc hook
Date: Wed, 14 Dec 2005 00:40:14 -0800 [thread overview]
Message-ID: <20051214004014.ada450e6.pj@sgi.com> (raw)
In-Reply-To: <439FD295.7070102@cosmosbay.com>
Eric wrote:
> So for small objects (<= 256 bytes), you end with a sizeof(arracy_cache) =
> 1024 bytes per cpu
A kbyte per cpu, for something 98% of systems will use -none- of.
Ouch.
All the more motivation for nuking cpuset_cache.
Patch coming in a minute.
--
I won't rest till it's the best ...
Programmer, Linux Scalability
Paul Jackson <pj@sgi.com> 1.925.600.0401
next prev parent reply other threads:[~2005-12-14 8:40 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-11 23:31 [PATCH] Cpuset: rcu optimization of page alloc hook Paul Jackson
2005-12-12 3:29 ` Andi Kleen
2005-12-12 6:11 ` Paul Jackson
2005-12-12 6:21 ` Andi Kleen
2005-12-12 6:50 ` Paul Jackson
2005-12-12 8:49 ` Eric Dumazet
2005-12-12 8:54 ` Nick Piggin
2005-12-12 9:06 ` Eric Dumazet
2005-12-12 9:11 ` Andrew Morton
2005-12-12 9:38 ` Nick Piggin
2005-12-12 10:02 ` Paul Jackson
2005-12-12 10:12 ` Andrew Morton
2005-12-13 15:53 ` Paul Jackson
2005-12-13 16:31 ` Eric Dumazet
2005-12-13 17:42 ` Christoph Lameter
2005-12-13 17:56 ` Eric Dumazet
2005-12-13 18:07 ` Christoph Lameter
2005-12-13 21:03 ` Paul Jackson
2005-12-13 21:16 ` Christoph Lameter
2005-12-13 21:38 ` Eric Dumazet
2005-12-13 22:23 ` Paul Jackson
2005-12-13 22:29 ` Christoph Lameter
2005-12-14 3:54 ` Paul Jackson
2005-12-14 4:02 ` Andi Kleen
2005-12-14 4:06 ` Paul Jackson
2005-12-14 8:06 ` Eric Dumazet
2005-12-14 8:40 ` Paul Jackson [this message]
2005-12-13 20:08 ` Paul Jackson
2005-12-13 20:29 ` Eric Dumazet
2005-12-13 22:35 ` Paul Jackson
2005-12-13 21:44 ` Paul Jackson
2005-12-13 17:37 ` Christoph Lameter
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