Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sat, 17 Nov 2001 11:58:38 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sat, 17 Nov 2001 11:58:28 -0500 Received: from e21.nc.us.ibm.com ([32.97.136.227]:13295 "EHLO e21.nc.us.ibm.com") by vger.kernel.org with ESMTP id ; Sat, 17 Nov 2001 11:58:07 -0500 Importance: Normal Subject: [patch] scheduler cache affinity improvement in 2.4 kernels by Ingo Molnar To: linux-kernel@vger.kernel.org X-Mailer: Lotus Notes Release 5.0.5 September 22, 2000 Message-ID: From: "Partha Narayanan" Date: Sat, 17 Nov 2001 10:58:05 -0600 X-MIMETrack: Serialize by Router on D04NMS38/04/M/IBM(Release 5.0.8 |June 18, 2001) at 11/17/2001 11:58:06 AM MIME-Version: 1.0 Content-type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Folks, The above patch for scheduler cache affinity improvement in 2.4 kernels by Ingo Molnar was applied to 2.4.14 kernel; a run of Volano LoopBack BenchMark on a Netfinity 8500 R 1MB 700 MHz PIII 1MB-L2 cache and 1GB memory support produced the following results: The UniProcessor throughput was reduced by 40%. The 4-way throughput showed a very slight degradation of 1%. The 8-way throughput showed an improvemnet of 10%. I do not subscribe to lkml and hence please address any future correspondence on this topic to partha@us.ibm.,com. Thanks, Partha - 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/