From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 11 Jan 2002 07:09:30 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 11 Jan 2002 07:09:18 -0500 Received: from nav.interactiveinstitute.se ([195.149.141.29]:7173 "EHLO nav.interactiveinstitute.se") by vger.kernel.org with ESMTP id ; Fri, 11 Jan 2002 07:08:55 -0500 Message-Id: <200201111208.g0BC8wI29387@nav.interactiveinstitute.se> Content-Type: text/plain; charset=US-ASCII From: Anders Vedmar To: linux-kernel@vger.kernel.org Subject: 2.4.17 raid5 checksumming function selection wierdness Date: Fri, 11 Jan 2002 13:12:53 +0100 X-Mailer: KMail [version 1.3.2] MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org The raid5 code in 2.4.17 seems to select the slowest available checksumming function. Part of dmesg output follows: [...] raid5: measuring checksumming speed 8regs : 2148.000 MB/sec 32regs : 1900.400 MB/sec pIII_sse : 1272.000 MB/sec pII_mmx : 3291.200 MB/sec p5_mmx : 4212.400 MB/sec raid5: using function: pIII_sse (1272.000 MB/sec) [...] The machine is an Athlon XP 1400MHz on an MSI K7T266Pro2 board with 512 Mb of PC2100 DDR. -- /A