Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
	id S1752122AbcDMPeM (ORCPT <rfc822;w@1wt.eu>);
	Wed, 13 Apr 2016 11:34:12 -0400
Received: from mx2.suse.de ([195.135.220.15]:42573 "EHLO mx2.suse.de"
	rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
	id S1752075AbcDMPeK (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
	Wed, 13 Apr 2016 11:34:10 -0400
Message-ID: <1460561648.11954.48.camel@suse.de>
Subject: Re: sched: tweak select_idle_sibling to look for idle threads
From: Mike Galbraith <mgalbraith@suse.de>
To: Chris Mason <clm@fb.com>
Cc: Peter Zijlstra <peterz@infradead.org>, Ingo Molnar <mingo@kernel.org>,
        Matt Fleming <matt@codeblueprint.co.uk>, linux-kernel@vger.kernel.org
Date: Wed, 13 Apr 2016 17:34:08 +0200
In-Reply-To: <1460559948.11954.41.camel@suse.de>
References: <20160410195543.fp2tpixaafsts5x3@floor.thefacebook.com>
	 <1460350461.3870.36.camel@suse.de>
	 <20160412003044.smr24xzuom3locvo@floor.thefacebook.com>
	 <1460436248.3839.80.camel@suse.de>
	 <20160412132758.7apgqqwl2c2wksy6@floor.thefacebook.com>
	 <1460484977.5617.32.camel@suse.de>
	 <20160412200728.GA41928@clm-mbp.thefacebook.com>
	 <1460517531.3780.29.camel@suse.de>
	 <20160413134430.3s2w4dodocgislpb@floor.thefacebook.com>
	 <1460557378.11954.22.camel@suse.de>
	 <20160413143640.p52y22lvmdqkegmt@floor.thefacebook.com>
	 <1460559948.11954.41.camel@suse.de>
Content-Type: text/plain; charset="UTF-8"
X-Mailer: Evolution 3.16.5 
Mime-Version: 1.0
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org
Content-Length: 137
Lines: 4

Another thing you could try is looking at your avg_idle, and twiddling
sched_migration_cost_ns to crank up idle balancing a bit.

	-Mike