linux-kernel - Re: relax_domain_level boot parameter has no effect

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Message-ID: <1338824262.28282.87.camel@twins>
Date:	Mon, 04 Jun 2012 17:37:42 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Dimitri Sivanich <sivanich@....com>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org
Subject: Re: relax_domain_level boot parameter has no effect

On Fri, 2012-06-01 at 16:03 -0500, Dimitri Sivanich wrote:
> I noticed (and verified) that the relax_domain_level boot parameter does not
> get processed because sched_domain_level_max is 0 at the time that
> setup_relax_domain_level() is run.
> 
> int sched_domain_level_max;
> 
> static int __init setup_relax_domain_level(char *str)
> {
>         unsigned long val;
> 
>         val = simple_strtoul(str, NULL, 0);
>         if (val < sched_domain_level_max)
>                 default_relax_domain_level = val;
> 
>         return 1;
> }
> __setup("relax_domain_level=", setup_relax_domain_level);

Ah indeed.. this has been so for a while I guess.

What are you using this knob for?
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