From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751248AbWDOTKy (ORCPT ); Sat, 15 Apr 2006 15:10:54 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751263AbWDOTKy (ORCPT ); Sat, 15 Apr 2006 15:10:54 -0400 Received: from smtp-out.google.com ([216.239.45.12]:56603 "EHLO smtp-out.google.com") by vger.kernel.org with ESMTP id S1751248AbWDOTKx (ORCPT ); Sat, 15 Apr 2006 15:10:53 -0400 DomainKey-Signature: a=rsa-sha1; s=beta; d=google.com; c=nofws; q=dns; h=received:message-id:date:from:user-agent: x-accept-language:mime-version:to:cc:subject:content-type:content-transfer-encoding; b=Xp2+0jOIv2+yIWHd2RYo1qidPsQzuRX+y/z961JYAyDnDlF8IJn6qnMilTOMURuHf ooyTkMXkVk88PyiInsJyg== Message-ID: <4441452F.3060009@google.com> Date: Sat, 15 Apr 2006 12:10:39 -0700 From: "Martin J. Bligh" User-Agent: Mozilla Thunderbird 1.0.7 (X11/20051013) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Linux Kernel Mailing List CC: Andy Whitcroft Subject: Clear performance regression on reaim7 in 2.6.15-git6 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org OK, looking back through the perf results, these two graphs clearly show a perf regression in reaim7 from 2.6.15 to 2.6.16-rc1. We're loosing over 50% of the performance. http://test.kernel.org/abat/perf/reaim.moe.png http://test.kernel.org/abat/perf/reaim.elm3b67.png Drilling down (there's not enough detail on the graphs for releases that far back), I see it's actually between -git5 and -git6 These are both ia-32 NUMA machines, one is an x440, the other is NUMA-Q.