linux-kernel - Re: [PATCH 4/5] x86: Add config variables for SMP

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Date:	Fri, 18 Jan 2008 22:02:43 +0100
From:	Andi Kleen <ak@...e.de>
To:	Mike Travis <travis@....com>
Cc:	Ingo Oeser <ioe-lkml@...eria.de>,
	Andrew Morton <akpm@...ux-foundation.org>, mingo@...e.hu,
	Christoph Lameter <clameter@....com>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 4/5] x86: Add config variables for SMP_MAX II


> > Here are the top stack consumers with NR_CPUS = 4k.
> > 
> >                          16392 isolated_cpu_setup
> >                          10328 build_sched_domains
> >                           8248 numa_initmem_init
> 
> These should run single threaded early at boot so you can probably just make
> the cpumask_t variables static __initdata


To correct myself: this is not true for build_sched_domains() which can
be triggered from sysfs.

-Andi
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