From: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
To: Paul Turner <pjt@google.com>
Cc: linux-kernel@vger.kernel.org, Venki Pallipadi <venki@google.com>,
        Srivatsa Vaddagiri <vatsa@in.ibm.com>,
        Peter Zijlstra <a.p.zijlstra@chello.nl>,
        Mike Galbraith <efault@gmx.de>,
        Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>,
        Ben Segall <bsegall@google.com>, Ingo Molnar <mingo@elte.hu>,
        Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com>
Subject: Re: [RFC PATCH 00/14] sched: entity load-tracking re-work
In-Reply-To: <CAPM31RLWpF0mO2faCfY+HOeThz0iW6_7D+S++pGHtJi6hhiAVQ@mail.gmail.com>
References: <20120202013825.20844.26081.stgit@kitami.mtv.corp.google.com> <87k43lde0r.fsf@linux.vnet.ibm.com> <CAPM31RLWpF0mO2faCfY+HOeThz0iW6_7D+S++pGHtJi6hhiAVQ@mail.gmail.com>
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Date: Mon, 20 Feb 2012 15:11:21 +0530
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On Fri, 17 Feb 2012 02:48:06 -0800, Paul Turner <pjt@google.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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