From: Li Zefan <lizf@cn.fujitsu.com>
To: Paul Jackson <pj@sgi.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Lee.Schermerhorn@hp.com,
Hidetoshi Seto <seto.hidetoshi@jp.fujitsu.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 14:08:49 +0800 [thread overview]
Message-ID: <48687871.3040407@cn.fujitsu.com> (raw)
In-Reply-To: <20080630045640.20308.22031.sendpatchset@polaris-admin.engr.sgi.com>
Paul Jackson wrote:
> From: Paul Jackson <pj@sgi.com>
>
> Document the kernel boot parameter: relax_domain_level=.
>
> Signed-off-by: Paul Jackson <pj@sgi.com>
>
> ---
> Documentation/cpusets.txt | 3 +++
> Documentation/kernel-parameters.txt | 4 ++++
> 2 files changed, 7 insertions(+)
>
> --- 2.6.26-rc5-mm3.orig/Documentation/cpusets.txt 2008-06-27 06:55:34.000000000 -0700
> +++ 2.6.26-rc5-mm3/Documentation/cpusets.txt 2008-06-29 21:49:53.984674621 -0700
> @@ -546,6 +546,9 @@ otherwise initial value -1 that indicate
> ( 4 : search nodes in a chunk of node [on NUMA system] )
> ( 5~ : search system wide [on NUMA system])
>
> +The system default is 0 (no search). The system default can be
> +changed using the relax_domain_level= boot parameter.
> +
> This file is per-cpuset and affect the sched domain where the cpuset
> belongs to. Therefore if the flag 'sched_load_balance' of a cpuset
> is disabled, then 'sched_relax_domain_level' have no effect since
> --- 2.6.26-rc5-mm3.orig/Documentation/kernel-parameters.txt 2008-06-27 06:28:26.000000000 -0700
> +++ 2.6.26-rc5-mm3/Documentation/kernel-parameters.txt 2008-06-29 21:51:10.477997208 -0700
> @@ -1732,6 +1732,10 @@ and is between 256 and 4096 characters.
> Format: <reboot_mode>[,<reboot_mode2>[,...]]
> See arch/*/kernel/reboot.c or arch/*/kernel/process.c
>
> + relax_domain_level=
> + [KNL, SMP] Set schedulers default relax_domain_level.
> + See Documentation/cpusets.txt.
> +
is [KNL,SMP] more consistent ?
and s/schedulers/scheduler's/
but maybe I'm wrong due to my English skill.
> reserve= [KNL,BUGS] Force the kernel to ignore some iomem area
>
> reservetop= [X86-32]
>
Reviewed-by: Li Zefan <lizf@cn.fujitsu.com>
next prev parent reply other threads:[~2008-06-30 6:30 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 [this message]
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
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