linux-kernel - Re: [RFC PATCH 00/14] sched: entity load-tracking re-work

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Message-ID: <87aa4dq1tq.fsf@abhimanyu.in.ibm.com>
Date:	Mon, 20 Feb 2012 15:11:21 +0530
From:	Nikunj A Dadhania <nikunj@...ux.vnet.ibm.com>
To:	Paul Turner <pjt@...gle.com>
Cc:	linux-kernel@...r.kernel.org, Venki Pallipadi <venki@...gle.com>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Mike Galbraith <efault@....de>,
	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>,
	Ben Segall <bsegall@...gle.com>, Ingo Molnar <mingo@...e.hu>,
	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>
Subject: Re: [RFC PATCH 00/14] sched: entity load-tracking re-work

On Fri, 17 Feb 2012 02:48:06 -0800, Paul Turner <pjt@...gle.com> wrote:
> 
> This is almost certainly a result of me twiddling with the weight in
> calc_cfs_shares (using average instead of instantaneous weight) in
> this version -- see patch 11/14.  While this had some nice stability
> properties it was not hot for fairness so I've since reverted it
> (snippet attached below).
>
For my understanding, what do you mean by stability here?

> 
> 24-core:
> Starting task group fair16...done
> Starting task group fair32...done
> Starting task group fair48...done
> Waiting for the task to run for 120 secs
> Interpreting the results. Please wait....
> Time consumed by fair16 cgroup:  12628615 Tasks: 96
> Time consumed by fair32 cgroup:  12562859 Tasks: 192
> Time consumed by fair48 cgroup:  12600364 Tasks: 288
> 
"Tasks:" should be 16,32,48? 

Regards,
Nikunj

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