Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 25 Jan 2002 18:09:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 25 Jan 2002 18:09:05 -0500 Received: from e31.co.us.ibm.com ([32.97.110.129]:59853 "EHLO e31.co.us.ibm.com") by vger.kernel.org with ESMTP id ; Fri, 25 Jan 2002 18:08:48 -0500 Date: Fri, 25 Jan 2002 15:07:13 -0800 From: "Martin J. Bligh" To: linux-kernel@vger.kernel.org cc: mingo@elte.hu Subject: Performance of Ingo's O(1) scheduler on 8 way NUMA-Q Message-ID: <23350000.1012000033@flay> In-Reply-To: <119440000.1011836623@flay> In-Reply-To: <119440000.1011836623@flay> X-Mailer: Mulberry/2.1.2 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Measuring the performace of a parallelized kernel compile with warm caches on a 8 way NUMA-Q box. Highmem support is turned OFF so I'm only using the first 1Gb or so of RAM (it's much faster without HIGHMEM). prepare: make -j16 dep; make -j16 bzImage; make mrproper; make -j16 dep; measured: time make -j16 bzImage 2.4.18-pre7 330.06user 99.92system 1:00.35elapsed 712%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (411135major+486026minor)pagefaults 0swaps 2.4.18-pre7 with J6 scheduler 307.19user 88.54system 0:57.63elapsed 686%CPU (0avgtext+0avgdata 0maxresident)k 0inputs+0outputs (399255major+484472minor)pagefaults 0swaps Seems to give a significant improvement, not only giving a shorter elapsed time, but also lower CPU load. Martin. - 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/