From: Li Zefan <lizf@cn.fujitsu.com>
To: Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.com>
Cc: Paul Jackson <pj@sgi.com>,
Andrew Morton <akpm@linux-foundation.org>,
Lee.Schermerhorn@hp.com, linux-kernel@vger.kernel.org,
Michael Kerrisk <mtk.manpages@googlemail.com>,
rientjes@google.com
Subject: Re: [PATCH] doc: Document the relax_domain_level kernel boot argument
Date: Mon, 30 Jun 2008 15:44:27 +0800 [thread overview]
Message-ID: <48688EDB.4020908@cn.fujitsu.com> (raw)
In-Reply-To: <48688DDE.9060802@jp.fujitsu.com>
Hidetoshi Seto wrote:
> 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...
>
Ah, yes, it's my mistake. :(
> [kernel/sched.c]
>> static int default_relax_domain_level = -1;
>
> AFAIK, for example, x86(SMT) search siblings by default.
>
So the system default is architecture depentdent.
> Thanks,
> H.Seto
>
>
prev parent reply other threads:[~2008-06-30 7:46 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-06-30 4:56 [PATCH] doc: Document the relax_domain_level kernel boot argument Paul Jackson
2008-06-30 6:08 ` Li Zefan
2008-06-30 7:10 ` Michael Kerrisk
2008-06-30 13:01 ` Paul Jackson
2008-06-30 6:57 ` Hidetoshi Seto
2008-06-30 7:14 ` Li Zefan
2008-06-30 7:40 ` Hidetoshi Seto
2008-06-30 7:44 ` Li Zefan [this message]
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