Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751736AbaGAFlM (ORCPT ); Tue, 1 Jul 2014 01:41:12 -0400 Received: from mail-we0-f179.google.com ([74.125.82.179]:44127 "EHLO mail-we0-f179.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750822AbaGAFlL (ORCPT ); Tue, 1 Jul 2014 01:41:11 -0400 Message-ID: <1404193267.5159.28.camel@marge.simpson.net> Subject: Re: [PATCH] sched: select 'idle' cfs_rq per task-group to prevent tg-internal imbalance From: Mike Galbraith To: Michael wang Cc: Peter Zijlstra , Rik van Riel , Ingo Molnar , Alex Shi , Paul Turner , Mel Gorman , Daniel Lezcano , LKML Date: Tue, 01 Jul 2014 07:41:07 +0200 In-Reply-To: <53B223AE.10903@linux.vnet.ibm.com> References: <53A11A89.5000602@linux.vnet.ibm.com> <53B11387.9020001@linux.vnet.ibm.com> <1404115601.5132.156.camel@marge.simpson.net> <53B12417.9060904@linux.vnet.ibm.com> <1404120453.5132.194.camel@marge.simpson.net> <53B223AE.10903@linux.vnet.ibm.com> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2014-07-01 at 10:57 +0800, Michael wang wrote: > IMHO, currently the generic scheduler just try to take care both latency > and throughput, both will take a little damage but won't be damaged too > much, they just sacrificed for each other... The cost can be large, so it's worth an occasional ponder. -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/