linux-kernel - Re: Kernel 4.7rc3 - Performance drop 30-40% for SPECjbb2005 and SPECjvm2008 benchmarks against 4.6 kernel

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Message-ID: <20160624123032.GZ30154@twins.programming.kicks-ass.net>
Date:	Fri, 24 Jun 2016 14:30:32 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Jirka Hladky <jhladky@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
	Kamil Kolakowski <kkolakow@...hat.com>,
	Morten Rasmussen <morten.rasmussen@....com>,
	Yuyang Du <yuyang.du@...el.com>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Mike Galbraith <umgwanakikbuti@...il.com>, bsegall@...gle.com,
	pjt@...gle.com, matt@...eblueprint.co.uk
Subject: Re: Kernel 4.7rc3 - Performance drop 30-40% for SPECjbb2005 and
 SPECjvm2008 benchmarks against 4.6 kernel

On Fri, Jun 24, 2016 at 02:09:30PM +0200, Jirka Hladky wrote:
> Thank you Peter!
> 
> Should I apply it to v4.7-rc4 ?

It does indeed apply to v4.7-rc4, although I only tested it against
tip/master.