Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753430Ab3G0GW6 (ORCPT ); Sat, 27 Jul 2013 02:22:58 -0400 Received: from mail-we0-f177.google.com ([74.125.82.177]:33418 "EHLO mail-we0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752725Ab3G0GWz convert rfc822-to-8bit (ORCPT ); Sat, 27 Jul 2013 02:22:55 -0400 MIME-Version: 1.0 In-Reply-To: <10589669.3DKeJru7h0@vostro.rjw.lan> References: <20130726173306.GB17985@jeder.rdu.redhat.com> <51F2C014.90102@redhat.com> <1661917.srTpO55z5q@vostro.rjw.lan> <10589669.3DKeJru7h0@vostro.rjw.lan> Date: Sat, 27 Jul 2013 02:22:53 -0400 X-Google-Sender-Auth: MxoIjbBWqC0Lr0sgE3X5FoifFwI Message-ID: Subject: Re: RFC: revert request for cpuidle patches e11538d1 and 69a37bea From: Len Brown To: "Rafael J. Wysocki" Cc: Rik van Riel , Jeremy Eder , Arjan van de Ven , "linux-kernel@vger.kernel.org" , "Rafael J. Wysocki" , youquan.song@intel.com, paulmck@linux.vnet.ibm.com, daniel.lezcano@linaro.org, "Brown, Len" , Linux PM list Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1826 Lines: 54 >> OK, I'll queue up the reverts as fixes for 3.11-rc4. > > So, the reverts are on the fixes-next branch of the linux-pm.git tree that you > can access at > > http://git.kernel.org/cgit/linux/kernel/git/rafael/linux-pm.git/log/?h=fixes-next > > However, they are not simple reverts as we've had some non-trivial changes on > top of those commits already, so I'd appreciate it a lot if somebody could > double check if I didn't break anything in them. I've verified that the reverts improve netperf TCP_RR performance. Here I've got two Xeon's, slightly different, so I run in both directions. Also I run two ways -- Out-of-the-box, plus with cpufreq set to max frequency. The reverts improve all 4 cases: JKT → IVT IVT → JKT 3.11.0-rc2 baseline w/o revert Out of Box 20420 19963 20658 19915 20298 20320 3.11.0-rc2 baseline w/o revert max freq 59658 51427 59663 51503 59416 51343 3.11.0-rc2-00002-g74bce39 Linux-pm “fixes-next” branch 3.11.0-rc2-00002-g74bce39 Out of box 23227 22056 23306 22125 23387 40226 40k result saw some 2.2 ghz vs 1.2 ghz in other runs 21991 3.11.0-rc2-00002-g74bce39 Max-freq 67240 57645 64880 56764 65924 57435 Tested-by: Len Brown thanks, Len Brown, Intel Open Source Technology Center -- 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/