Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 1 Mar 2002 14:57:37 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 1 Mar 2002 14:55:16 -0500 Received: from FORT-POINT-STATION.MIT.EDU ([18.7.7.76]:46506 "EHLO fort-point-station.mit.edu") by vger.kernel.org with ESMTP id ; Fri, 1 Mar 2002 14:54:54 -0500 Date: Fri, 1 Mar 2002 14:54:51 -0500 (EST) From: Bharath Krishnan To: cc: Subject: Re: Yet another disk transfer speed problem Message-ID: 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 Hi, Here is fdisk -l results: [root@yakuza root]# /sbin/fdisk -l /dev/hdg Disk /dev/hdg: 255 heads, 63 sectors, 4866 cylinders Units = cylinders of 16065 * 512 bytes Device Boot Start End Blocks Id System /dev/hdg1 * 1 255 2048256 6 FAT16 [root@yakuza root]# /sbin/fdisk -l /dev/hde Disk /dev/hde: 255 heads, 63 sectors, 1867 cylinders Units = cylinders of 16065 * 512 bytes Device Boot Start End Blocks Id System /dev/hde1 1 6 48163+ 83 Linux /dev/hde2 7 1056 8434125 83 Linux /dev/hde3 * 1154 1867 5735205 7 HPFS/NTFS /dev/hde4 1057 1153 779152+ f Win95 Ext'd (LBA) /dev/hde5 1057 1153 779121 82 Linux swap Partition table entries are not in disk order As you can see, I have a fat16 partition on hdg. I can delete it and make an ext3 partition there and see if that changes anything. Thanks, -bharath >>> Could you provide fdisk -l for both? For some odd reason unknown to me some filesystems give slower results with hdparm than others, even with the buffer-cache reads (which are intended to measure memory speed, not drive speed, and thus should be the same for all drives on a given mainboard). Also, hdparm directly on the drive device is often a bit slower than hdparm for the first (outermost) partition. These problems have been far worse in older kernels, though. With 2.2 I once benchmarked a vfat-partition at half the speed the same partition gave as ext2. Holger -bharath - 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/