linux-kernel - Re: [PATCH] doc: Document the relax_domain

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Message-ID: <48688DDE.9060802@jp.fujitsu.com>
Date:	Mon, 30 Jun 2008 16:40:14 +0900
From:	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>
To:	Li Zefan <lizf@...fujitsu.com>
CC:	Paul Jackson <pj@....com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Lee.Schermerhorn@...com, linux-kernel@...r.kernel.org,
	Michael Kerrisk <mtk.manpages@...glemail.com>,
	rientjes@...gle.com
Subject: Re: [PATCH] doc: Document the relax_domain_level kernel boot argument

Li Zefan wrote:
> Hidetoshi Seto wrote:
>> The system default is architecture dependent. You can change your
>> system's default using the relax_domain_level= boot parameter.
> 
> but the system default is 0 by default. and 0 means no search no matter
> what architecture is. ;)

If my git pull works correctly, it seems that the default is still -1...

[kernel/sched.c]
> static int default_relax_domain_level = -1;

AFAIK, for example, x86(SMT) search siblings by default.

Thanks,
H.Seto
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