From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751628AbcEIIdd (ORCPT ); Mon, 9 May 2016 04:33:33 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:47130 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751167AbcEIIdc (ORCPT ); Mon, 9 May 2016 04:33:32 -0400 Date: Mon, 9 May 2016 10:33:30 +0200 From: Peter Zijlstra To: Mike Galbraith Cc: Matt Fleming , Chris Mason , Ingo Molnar , linux-kernel@vger.kernel.org Subject: Re: sched: tweak select_idle_sibling to look for idle threads Message-ID: <20160509083330.GH3430@twins.programming.kicks-ass.net> References: <1462086753.9717.29.camel@suse.de> <20160502084615.GB3430@twins.programming.kicks-ass.net> <1462200604.3736.42.camel@suse.de> <20160502145817.GW3408@twins.programming.kicks-ass.net> <20160502154725.ckiewczbdubudyc7@floor.masoncoding.com> <20160503143225.GG3448@twins.programming.kicks-ass.net> <20160503151153.wp6jcnjadmw2ypmx@floor.masoncoding.com> <20160504103701.GO3430@twins.programming.kicks-ass.net> <20160505220306.GO2839@codeblueprint.co.uk> <1462560878.5119.9.camel@suse.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1462560878.5119.9.camel@suse.de> User-Agent: Mutt/1.5.21 (2012-12-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, May 06, 2016 at 08:54:38PM +0200, Mike Galbraith wrote: > master > Throughput 2722.43 MB/sec 4 clients 4 procs max_latency=2.400 ms > echo NO_IDLE_SIBLING > /sys/kernel/debug/sched_features > Throughput 3484.18 MB/sec 4 clients 4 procs max_latency=3.430 ms Yeah, I know about that bump, I just haven't managed to find a way to preserve that and keep all the other benchmarks ticking along :/