From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753292Ab3ALKTK (ORCPT ); Sat, 12 Jan 2013 05:19:10 -0500 Received: from moutng.kundenserver.de ([212.227.126.171]:57224 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751188Ab3ALKTJ (ORCPT ); Sat, 12 Jan 2013 05:19:09 -0500 Message-ID: <1357985943.6796.55.camel@marge.simpson.net> Subject: Re: [RFC PATCH 0/2] sched: simplify the select_task_rq_fair() From: Mike Galbraith To: Michael Wang Cc: linux-kernel@vger.kernel.org, mingo@redhat.com, peterz@infradead.org, mingo@kernel.org, a.p.zijlstra@chello.nl Date: Sat, 12 Jan 2013 11:19:03 +0100 In-Reply-To: <1357977704.6796.47.camel@marge.simpson.net> References: <1356588535-23251-1-git-send-email-wangyun@linux.vnet.ibm.com> <50ED384C.1030301@linux.vnet.ibm.com> <1357977704.6796.47.camel@marge.simpson.net> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.2.3 Content-Transfer-Encoding: 7bit Mime-Version: 1.0 X-Provags-ID: V02:K0:beDufREb23K70HeRsSHlldSlmDtMAR8c0JN6o+ziVdf vNF8oHecSiL233oQ/CMtlke9PKuYUTjJd5C4DTEjv3DgvbI51A aZeF5m08GzsF704If65Tk8QSr/tygFZugQGLqFHW09YLkt/30s Vteqbkh7GctBMN6mAjSU77V8HQSZGTqnZzf5MqnD1yrxv7POg7 +R0BYJwh1A5qeMSNp4YGPeYqTTkWpMDMPY1PLXpHRVt0QFcqjE +1oAghL+caLbVLv0DLsOzXUFLnbea5LJwWlPCF8qT82LTgTwYC rYgu1VKcghYf3FrpC8PbHpYxPHDyUpTVPnl6C3HoX4oiEXBaPB 4fdFqBV8NHrnnSZvcvtWZahtBOPoVSl649CNXuPbUwepQe6k2y n0jOu80JzYjow== Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org aim7 compute Tasks jobs/min jti jobs/min/task real cpu 1 440.41 100 440.4070 13.76 3.65 5 1923.81 99 384.7619 15.75 26.17 10 4223.00 99 422.2997 14.35 41.66 20 7632.24 87 381.6121 15.88 55.85 40 16378.38 97 409.4595 14.80 169.63 80 32934.78 99 411.6848 14.72 364.50 160 63789.47 98 398.6842 15.20 398.55 320 121200.00 98 378.7500 16.00 471.10 640 213803.75 96 334.0684 18.14 640.05 1280 323334.72 93 252.6053 23.99 1106.92 2560 425846.83 87 166.3464 36.43 2097.59 +simplify select_task_rq_fair() Tasks jobs/min jti jobs/min/task real cpu 1 441.37 100 441.3693 13.73 3.71 5 1861.18 99 372.2359 16.28 28.87 10 2777.27 99 277.7269 21.82 93.90 20 4069.85 83 203.4923 29.78 140.40 40 6500.40 69 162.5101 37.29 355.66 80 31338.07 96 391.7259 15.47 316.10 160 63207.30 98 395.0456 15.34 405.22 320 122501.58 96 382.8174 15.83 450.57 640 219863.95 91 343.5374 17.64 591.74 1280 333339.06 84 260.4211 23.27 1045.13 2560 428315.85 79 167.3109 36.22 2075.88 Hm, low end takes a big hit.