linux-kernel - Re: [patch 00/16] sched: per-entity load-tracking

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Message-ID: <50602849.70506@cs.tu-berlin.de>
Date:	Mon, 24 Sep 2012 11:30:49 +0200
From:	"Jan H. Schönherr" 
	<schnhrr@...tu-berlin.de>
To:	pjt@...gle.com
CC:	linux-kernel@...r.kernel.org,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>,
	Ingo Molnar <mingo@...e.hu>,
	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>,
	Venki Pallipadi <venki@...gle.com>,
	Ben Segall <bsegall@...gle.com>,
	Mike Galbraith <efault@....de>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Nikunj A Dadhania <nikunj@...ux.vnet.ibm.com>,
	Morten Rasmussen <Morten.Rasmussen@....com>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Namhyung Kim <namhyung@...nel.org>
Subject: Re: [patch 00/16] sched: per-entity load-tracking

Hi Paul.

Am 23.08.2012 16:14, schrieb pjt@...gle.com:
> Please find attached the latest version for CFS load-tracking.

Originally, I thought, this series also takes care of
the leaf-cfs-runqueue ordering issue described here:

http://lkml.org/lkml/2011/7/18/86

Now, that I had a closer look, I see that it does not take
care of it.

Is there still any reason why the leaf_cfs_rq-list must be sorted?
Or could we just get rid of the ordering requirement, now?

(That seems easier than to fix the issue, as I suspect that
__update_blocked_averages_cpu() might still punch some holes
in the hierarchy in some edge cases.)

I'd like to see that issue resolved. :)

Regards
Jan
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