linux-kernel - Re: [Patch] Scale pidhash_shift/pidhash_size up based on num_possible

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Date:	Fri, 1 Aug 2008 11:49:42 -0700 (PDT)
From:	Linus Torvalds <torvalds@...ux-foundation.org>
To:	Robin Holt <holt@....com>
cc:	"Eric W. Biederman" <ebiederm@...ssion.com>,
	linux-kernel@...r.kernel.org, Pavel Emelyanov <xemul@...nvz.org>,
	Oleg Nesterov <oleg@...sign.ru>,
	Sukadev Bhattiprolu <sukadev@...ibm.com>,
	Paul Menage <menage@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [Patch] Scale pidhash_shift/pidhash_size up based on
 num_possible_cpus().



On Fri, 1 Aug 2008, Robin Holt wrote:
> 
> It was initially detected while profiling 'ps' on a 2048p machine that
> had 13 kernel threads per cpu.

Grr. Wouldn't it be better to concentrate on that "13 kernel threads per 
cpu" part?

		Linus
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