From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756184AbYESGxV (ORCPT ); Mon, 19 May 2008 02:53:21 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753984AbYESGxM (ORCPT ); Mon, 19 May 2008 02:53:12 -0400 Received: from mga06.intel.com ([134.134.136.21]:6991 "EHLO orsmga101.jf.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1753687AbYESGxL (ORCPT ); Mon, 19 May 2008 02:53:11 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.27,507,1204531200"; d="scan'208";a="384989247" Subject: Re: [Bug #10638] sysbench+mysql(oltp, readonly) 30% regression with 2.6.26-rc1 From: "Zhang, Yanmin" To: Peter Zijlstra Cc: "Rafael J. Wysocki" , Linux Kernel Mailing List , Ingo Molnar In-Reply-To: <1211176540.8292.3.camel@twins> References: <7wuznNhcUqC.A.IMB.TtBMIB@albercik> <1211131278.6463.7.camel@lappy.programming.kicks-ass.net> <1211135856.6463.22.camel@lappy.programming.kicks-ass.net> <1211160283.3177.134.camel@ymzhang> <1211176540.8292.3.camel@twins> Content-Type: text/plain; charset=UTF-8 Date: Mon, 19 May 2008 14:49:27 +0800 Message-Id: <1211179767.3177.166.camel@ymzhang> Mime-Version: 1.0 X-Mailer: Evolution 2.21.5 (2.21.5-2.fc9) Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2008-05-19 at 07:55 +0200, Peter Zijlstra wrote: > On Mon, 2008-05-19 at 09:24 +0800, Zhang, Yanmin wrote: > > On Sun, 2008-05-18 at 20:37 +0200, Peter Zijlstra wrote: > > > On Sun, 2008-05-18 at 19:21 +0200, Peter Zijlstra wrote: > > > > On Sun, 2008-05-18 at 13:13 +0200, Rafael J. Wysocki wrote: > > > > > This message has been generated automatically as a part of a report > > > > > of recent regressions. > > > > > > > > > > The following bug entry is on the current list of known regressions > > > > > from 2.6.25. Please verify if it still should be listed. > > > > > > > > > > > > > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=10638 > > > > > Subject : sysbench+mysql(oltp, readonly) 30% regression with 2.6.26-rc1 > > > > > Submitter : Zhang, Yanmin > > > > > Date : 2008-05-07 4:55 (12 days old) > > > > > References : http://marc.info/?l=linux-kernel&m=121013681527052&w=2 > > > > > Handled-By : Ingo Molnar > > > > > Patch : http://marc.info/?l=linux-kernel&m=121015292616802&w=2 > > > > > > > > > > > > > > > > > > Could people test this: > > > > > > > > git://git.kernel.org/home/peterz/git/linux-2.6-sched.git/ v2.6.26-rc2-group-load-balance > > > > > > Seems I got my own url wrong - the right one is: > > > > > > git://git.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched.git v2.6.26-rc2-group-load-balance > > I used below command to clone your tree: > > RSYNC_PROXY=proxy.sc.intel.com:911 git clone rsync://rsync.kernel.org/pub/scm/linux/kernel/git/peterz/linux-2.6-sched.git linux-2.6-sched > > > > Got below errors: > > @ERROR: Unknown module 'home' > > rsync: connection unexpectedly closed (0 bytes received so far) [receiver] > > rsync error: error in rsync protocol data stream (code 12) at io.c(359) > > fatal: failed to unpack tree object HEAD > > > > > > Would you like to create a patch against 2.6.26-rc3? > > Index: linux-2.6/kernel/sched_clock.c > =================================================================== > --- linux-2.6.orig/kernel/sched_clock.c > +++ linux-2.6/kernel/sched_clock.c I tested it on 8-core stoakley. 1) volanoMark Comparing with 2.6.26-rc1, 2.6.26-rc3+peter_sched_git_patch result has about 30% improvement, but it still has about 27% regression than the one of 2.6.25. 2) sysbench+mysql(readonly oltp) Comparing with 2.6.26-rc2, 2.6.26-rc3+peter_sched_git_patch result has about 15% improvement, but it still has about 15% regression than the one of 2.6.25. -yanmin