linux-kernel - Re: [patch 05/15] sched: unthrottle cfs_rq(s) who ran out of quota at period refresh

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Message-ID: <1302010409.2225.1337.camel@twins>
Date:	Tue, 05 Apr 2011 15:33:29 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Paul Turner <pjt@...gle.com>
Cc:	linux-kernel@...r.kernel.org,
	Bharata B Rao <bharata@...ux.vnet.ibm.com>,
	Dhaval Giani <dhaval.giani@...il.com>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	Vaidyanathan Srinivasan <svaidy@...ux.vnet.ibm.com>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Kamalesh Babulal <kamalesh@...ux.vnet.ibm.com>,
	Ingo Molnar <mingo@...e.hu>,
	Pavel Emelyanov <xemul@...nvz.org>,
	Nikhil Rao <ncrao@...gle.com>
Subject: Re: [patch 05/15] sched: unthrottle cfs_rq(s) who ran out of quota
 at period refresh

On Tue, 2011-04-05 at 15:28 +0200, Peter Zijlstra wrote:
> There's something fishy there, it looks like ->runtime can end up being
> ->quota in case of overrun > 1, that shouldn't be possible, the
> refresh timer should never over-fill the bucket.

General confusion reigns after reading all those patches, but I think I
might have been wrong there.
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