linux-kernel - Re: [PATCH v3 2/2] sched: consider missed ticks when updating global cpu load

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Message-ID: <20151013145619.GT3816@twins.programming.kicks-ass.net>
Date:	Tue, 13 Oct 2015 16:56:19 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Frederic Weisbecker <fweisbec@...il.com>
Cc:	Byungchul Park <byungchul.park@....com>, mingo@...nel.org,
	linux-kernel@...r.kernel.org, tglx@...utronix.de
Subject: Re: [PATCH v3 2/2] sched: consider missed ticks when updating global
 cpu load

On Tue, Oct 13, 2015 at 04:51:05PM +0200, Frederic Weisbecker wrote:
> > And tick_nohz_handler() actually computes the number of ticks -- which
> > we then happily ignore.
> > 
> > Why compute it again a few functions down?
> 
> Ah, you mean we could get the return value of hrtimer_foward()? Both
> callers use hrtimer_forward() and I think it's fine to call it before
> tick_sched_handle().

Indeed so!
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