linux-kernel - Re: [PATCH] sched: fix: remove double calculation in fix_small

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Message-ID: <20140312090035.GM30956@twins.programming.kicks-ass.net>
Date:	Wed, 12 Mar 2014 10:00:35 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Vincent Guittot <vincent.guittot@...aro.org>
Cc:	mingo@...nel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sched: fix: remove double calculation in
 fix_small_imbalance

On Tue, Mar 11, 2014 at 05:26:06PM +0100, Vincent Guittot wrote:
> The tmp value has been already calculated in:
> scaled_busy_load_per_task =
> 		(busiest->load_per_task * SCHED_POWER_SCALE) /
> 		busiest->group_power;

You created a little confusion in my brain by saying it was a fix; while
in fact it is an optimization removing duplicate computation.

I've changed the Subject to read:

  sched: Remove double calculation in fix_small_imbalance

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