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Date: Mon, 23 Jul 2007 15:25:12 -0600
From: "Chris Friesen" <cfriesen@nortel.com>
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To: "Li, Tong N" <tong.n.li@intel.com>
CC: Andi Kleen <andi@firstfloor.org>, mingo@elte.hu,
       linux-kernel@vger.kernel.org
Subject: Re: [RFC] scheduler: improve SMP fairness in CFS
References: <Pine.LNX.4.64.0707231123080.3239@tongli.jf.intel.com> <p73ir8aubzx.fsf@bingen.suse.de> <1185225015.3593.15.camel@tongli.jf.intel.com>
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Li, Tong N wrote:
> On the other hand, if locking does
> become a problem for certain systems/workloads, increasing
> sysctl_base_round_slice can reduce the locking frequency and alleviate
> the problem, at the cost of being relatively less fair across the CPUs. 

If locking does become a problem, it may make sense to switch instead to 
a lockless algorithm of some sort...

Chris