linux-kernel - Re: containers (was Re: -mm merge plans for 2.6.23)

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Message-ID: <20070711090423.GA6758@elte.hu>
Date:	Wed, 11 Jul 2007 11:04:23 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	vatsa@...ux.vnet.ibm.com, Paul Menage <menage@...gle.com>,
	linux-kernel@...r.kernel.org, containers@...ts.osdl.org
Subject: Re: containers (was Re: -mm merge plans for 2.6.23)


* Andrew Morton <akpm@...ux-foundation.org> wrote:

> > 	c. Enable group scheduling bits only in -mm for now (2.6.23-mmX), using
> > 	   Paul's container patches. I can send you a short patch that hooks up 
> > 	   cfs group scheduler with Paul's container infrastructure.
> > 
> > If a. is not possible, I would prefer c.
> > 
> > Let me know your thoughts ..
> 
> I'm inclined to take the cautious route here - I don't think people 
> will be dying for the CFS thingy (which I didn't even know about?) in 
> .23, and it's rather a lot of infrastructure to add for a CPU 
> scheduler configurator gadget (what does it do, anyway?)
> 
> We have plenty of stuff for 2.6.23 already ;)
> 
> Is this liveable with??

another option would be to trivially hook up CONFIG_FAIR_GROUP_SCHED 
with cpusets, and to offer CONFIG_FAIR_GROUP_SCHED in the Kconfig, 
dependent on CPUSETS and defaulting to off. That would give it a chance 
to be tested, benchmarked, etc.

	Ingo
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