linux-kernel - Re: fair group scheduler not so fair?

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Message-ID: <20080530064324.GA29381@linux.vnet.ibm.com>
Date:	Fri, 30 May 2008 12:13:24 +0530
From:	Dhaval Giani <dhaval@...ux.vnet.ibm.com>
To:	Chris Friesen <cfriesen@...tel.com>
Cc:	vatsa@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org,
	mingo@...e.hu, a.p.zijlstra@...llo.nl, pj@....com,
	Balbir Singh <balbir@...ibm.com>,
	aneesh.kumar@...ux.vnet.ibm.com
Subject: Re: fair group scheduler not so fair?

> Also, although the long-term results are good, the shorter-term fairness 
> isn't great.  Is there a tuneable that would allow for a tradeoff between 
> performance and fairness?  I have people that are looking for within 4% 
> fairness over a 1sec interval.
>

How fair does smp fairness look for a !group scenario? I don't expect
group schould be able to do much better.

-- 
regards,
Dhaval
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