Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753310AbbGGEBe (ORCPT ); Tue, 7 Jul 2015 00:01:34 -0400 Received: from mail-wg0-f54.google.com ([74.125.82.54]:33316 "EHLO mail-wg0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752841AbbGGEBT (ORCPT ); Tue, 7 Jul 2015 00:01:19 -0400 Message-ID: <1436241678.1836.29.camel@gmail.com> Subject: Re: [PATCH RESEND] sched: prefer an idle cpu vs an idle sibling for BALANCE_WAKE From: Mike Galbraith To: Josef Bacik Cc: Peter Zijlstra , riel@redhat.com, mingo@redhat.com, linux-kernel@vger.kernel.org, morten.rasmussen@arm.com, kernel-team Date: Tue, 07 Jul 2015 06:01:18 +0200 In-Reply-To: <559AD9CE.4090309@fb.com> References: <1432761736-22093-1-git-send-email-jbacik@fb.com> <20150528102127.GD3644@twins.programming.kicks-ass.net> <20150528110514.GR18673@twins.programming.kicks-ass.net> <1434087305.3674.26.camel@gmail.com> <5581B70D.2000800@fb.com> <1434588939.3444.25.camel@gmail.com> <55823F33.7040005@fb.com> <1434600765.3393.9.camel@gmail.com> <55957871.7080906@fb.com> <1435905658.6418.52.camel@gmail.com> <1436025462.17152.37.camel@gmail.com> <1436080661.22930.22.camel@gmail.com> <1436159590.5850.27.camel@gmail.com> <559A91F4.7000903@fb.com> <1436207790.2940.30.camel@gmail.com> <559AD9CE.4090309@fb.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.12.11 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 651 Lines: 17 On Mon, 2015-07-06 at 15:41 -0400, Josef Bacik wrote: > So the NO_WAKE_WIDE_IDLE results are very good, almost the same as the > baseline with a slight regression at lower RPS and a slight improvement > at high RPS. Good. I can likely drop the rest then (I like dinky, so do CPUs;). I'm not real keen on the feature unless your numbers are really good, and odds are that ain't gonna happen. -Mike -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/