linux-kernel - Re: [LKP] [lkp] [sched/fair] 53d3bc773e: hackbench.throughput -32.9% regression

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Message-ID: <1464774513.4023.78.camel@gmail.com>
Date:	Wed, 01 Jun 2016 11:48:33 +0200
From:	Mike Galbraith <umgwanakikbuti@...il.com>
To:	"Huang, Ying" <ying.huang@...el.com>,
	Peter Zijlstra <peterz@...radead.org>
Cc:	Ingo Molnar <mingo@...nel.org>, lkp@...org,
	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [LKP] [lkp] [sched/fair] 53d3bc773e: hackbench.throughput
 -32.9% regression

On Wed, 2016-06-01 at 16:53 +0800, Huang, Ying wrote:

> You mean the commit is a functionality fix?

Yup.

These kind of things can be a bit annoying.  The fix to not subtract
load that we never added in the first place also pushed hackbench
around a bit.  Do anything at all with load_avg, you're gonna push
this/that benchmark around a bit, and folks who watch numbers closely
can end up chasing meaningless deltas.

	-Mike