From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752313AbaEOIfm (ORCPT ); Thu, 15 May 2014 04:35:42 -0400 Received: from bombadil.infradead.org ([198.137.202.9]:55779 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752076AbaEOIfk (ORCPT ); Thu, 15 May 2014 04:35:40 -0400 Date: Thu, 15 May 2014 10:35:31 +0200 From: Peter Zijlstra To: Michael wang Cc: Rik van Riel , LKML , Ingo Molnar , Mike Galbraith , Alex Shi , Paul Turner , Mel Gorman , Daniel Lezcano Subject: Re: [ISSUE] sched/cgroup: Does cpu-cgroup still works fine nowadays? Message-ID: <20140515083531.GE30445@twins.programming.kicks-ass.net> References: <537192D3.5030907@linux.vnet.ibm.com> <20140513094737.GU30445@twins.programming.kicks-ass.net> <53721FD4.6060300@redhat.com> <20140513142328.GE2485@laptop.programming.kicks-ass.net> <53731D12.7040804@linux.vnet.ibm.com> <20140514094426.GF30445@twins.programming.kicks-ass.net> <5374387E.4080802@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="lhOtAiCshckiypUO" Content-Disposition: inline In-Reply-To: <5374387E.4080802@linux.vnet.ibm.com> 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 --lhOtAiCshckiypUO Content-Type: text/plain; charset=us-ascii Content-Disposition: inline On Thu, May 15, 2014 at 11:46:06AM +0800, Michael wang wrote: > But for the dbench, stress combination, that's not spin-wasted, dbench > throughput do dropped, how could we explain that one? I've no clue what dbench does.. At this point you'll have to expose/trace the per-task runtime accounting for these tasks and ideally also the things the cgroup code does with them to see if it still makes sense. --lhOtAiCshckiypUO Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQIcBAEBAgAGBQJTdHxTAAoJEHZH4aRLwOS6JEoP+wfamA2596u6SFCEv0GmuxeV cwRY+AqgPcu06xo8le6cUiiy5JwcHn04YaCSHZ+M2i5olamP7EPDu0yLT9PkretC gTr8+l1rbqFhIhU9rS04O3/qJJoMu1aGYyHiX/+TXlhTjNFl/cuhIc4YsQ5eI/T8 15YMOc8GOeZUxPFCCiXHszyqIKR57PPMDTj2QSiwu7+Un1TYbjjvwTykRwdIZ9JJ dpjbEd06aGvvdY7HvvUqc2Tv9K1iduJ0ttS4SH7HvzQx7oID03SVAx0VO2V1z5iu YuRSUnQTj7JabnPNCAlr2Mj0cIM8IhmXmtzuHyvYMS2ukiaxKfVvWWyULW85/qhW yj05Nwm9N05PdPh/Jld8TujDmbm6/UuDb9CNKixGCfxjS5wpDHksYSRD0X2C4N6b UnUQ9CDJkuBcTMCc3B1pm+rxsI+EDoGaEjQfzeA26eABrWbvGj2I8wlykv0xTuJ+ 6/+kRU+0HcSTRoQ2NgKoHC7RXIATX8gLw+iASKddo2VDOceNO3rGzgWSGogl3c+i MG2ppvEgYplkz/bgxHH/XAOGS5KO9X3a0o/uQ9rtW6XMwIXCdqWtVOuICh1qO17+ qX6T4M0nKJ90VUGzpMOqhDOm0siCdtLRtkniMfUxvTB3+AVE8DTj6/95xSiLJX+O W7cz8tWWQJT2ov6HFdw8 =VrUS -----END PGP SIGNATURE----- --lhOtAiCshckiypUO--