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From: Christoph Lameter <clameter@engr.sgi.com>
To: Paul Jackson <pj@sgi.com>
Cc: Andrew Morton <akpm@osdl.org>,
	dada1@cosmosbay.com, 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: Tue, 13 Dec 2005 09:37:11 -0800 (PST)	[thread overview]
Message-ID: <Pine.LNX.4.62.0512130936170.22803@schroedinger.engr.sgi.com> (raw)
In-Reply-To: <20051213075345.c39f335d.pj@sgi.com>

On Tue, 13 Dec 2005, Paul Jackson wrote:

> So my intuition is:
>   If read alot but seldom written, mark "__read_mostly".
>   If seldom read or written, leave unmarked.

Correct.

>   1) I would -not- mark "struct kmem_cache *cpuset" __read_mostly, as it
>      is rarely accessed on -any- code path, much less a hot one.  It is
>      ideal cannon fodder.

Agree.


      parent reply	other threads:[~2005-12-13 17:37 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
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 [this message]

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