linux-kernel - Re: How to disable group scheduler correctly?

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Message-ID: <20080725173842.GA7048@linux.vnet.ibm.com>
Date:	Fri, 25 Jul 2008 23:08:42 +0530
From:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
To:	Alberto Gonzalez <luis6674@...oo.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: How to disable group scheduler correctly?

On Fri, Jul 25, 2008 at 10:05:52AM -0700, Alberto Gonzalez wrote:
> Hello,

Hi Alberto

> 
> Could anyone tell me which options to enable/disable to have the scheduler behavior as it was before 2.6.25 (i.e, completely disable the group scheduler)? There seems to be a lot of confusion [1] about which options to set or not set, so it would be nice if anyone could give the exact ones.
> 

To switch off group scheduling completely, please set CONFIG_GROUP_SCHED
to off.

If you wish to have cgroup based group scheduling, you need to
set CONFIG_CGROUP_SCHED on (and if required CONFIG_FAIR_GROUP_SCHED for
CFS group scheduling and CONFIG_RT_GROUP_SCHED for RT group scheduling)

-- 
regards,
Dhaval
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