Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754890AbYCNH0z (ORCPT ); Fri, 14 Mar 2008 03:26:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751738AbYCNH0p (ORCPT ); Fri, 14 Mar 2008 03:26:45 -0400 Received: from mga10.intel.com ([192.55.52.92]:39439 "EHLO fmsmga102.fm.intel.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751672AbYCNH0o (ORCPT ); Fri, 14 Mar 2008 03:26:44 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.25,499,1199692800"; d="scan'208";a="533768303" Subject: Re: hackbench regression since 2.6.25-rc From: "Zhang, Yanmin" To: Christoph Lameter Cc: Andrew Morton , Kay Sievers , Greg Kroah-Hartman , LKML , Ingo Molnar In-Reply-To: References: <1205394417.3215.85.camel@ymzhang> <20080313014808.f8d25c2a.akpm@linux-foundation.org> <1205400538.3215.148.camel@ymzhang> <1205463842.3215.188.camel@ymzhang> <1205465447.3215.195.camel@ymzhang> Content-Type: text/plain; charset=utf-8 Date: Fri, 14 Mar 2008 15:23:18 +0800 Message-Id: <1205479398.3215.284.camel@ymzhang> Mime-Version: 1.0 X-Mailer: Evolution 2.9.2 (2.9.2-2.fc7) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1729 Lines: 41 On Thu, 2008-03-13 at 23:34 -0700, Christoph Lameter wrote: > On Fri, 14 Mar 2008, Zhang, Yanmin wrote: > > > > So block 192 and 512's and very active and their fast free percentage > > > is low. > > On my 8-core stoakley, there is no such regression. Below data is after testing. > > Ok get the detailed statistics for this configuration as well. Then we > can see what kind of slub behavior changes between both configurations. I did paste such data in a prior email. COpy it below. On my 8-core stoakley, there is no such regression. Below data is after testing. [root@lkp-st02-x8664 ~]# slabinfo -AD Name Objects Alloc Free %Fast :0000192 3170 80055388 80052280 92 1 :0000512 316 80012750 80012466 69 1 vm_area_struct 2642 194700 192193 94 16 :0000064 3846 74468 70820 97 53 :0004096 15 69014 69012 98 97 :0000128 1447 32920 31541 91 8 dentry 13485 33060 19652 92 42 :0000080 10639 23377 12953 98 98 :0000096 1662 16496 15036 99 94 :0000832 232 14422 14203 85 10 :0000016 2733 15102 13372 99 14 I ran it for many times and got the similiar output from slabinfo. > > The 16p is really one node? Yes. It's a SMP machine. > No strange variances in memory latencies? No. -- 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/