From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S266920AbUBFV3T (ORCPT ); Fri, 6 Feb 2004 16:29:19 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S266622AbUBFV3T (ORCPT ); Fri, 6 Feb 2004 16:29:19 -0500 Received: from libra.i-cable.com ([203.83.111.73]:63739 "HELO libra.i-cable.com") by vger.kernel.org with SMTP id S266936AbUBFV2o (ORCPT ); Fri, 6 Feb 2004 16:28:44 -0500 Message-ID: <001101c3ecf8$b0f50cc0$b8560a3d@kyle> From: "Kyle" To: "Bas Mevissen" Cc: References: <164601c3ec06$be8bd5a0$b8560a3d@kyle> <40227C20.80404@basmevissen.nl> <167301c3ec0d$4d8508c0$b8560a3d@kyle> <40227D9D.2070704@basmevissen.nl> <168301c3ec0e$24698be0$b8560a3d@kyle> <4023682E.3060809@basmevissen.nl> Subject: Re: ICH5 with 2.6.1 very slow Date: Sat, 7 Feb 2004 05:32:15 +0800 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1158 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Today I tried to boot with redhat kernel 2.4.20-24.9smp, much better result: /dev/hda: Timing buffer-cache reads: 128 MB in 0.14 seconds =914.29 MB/sec Timing buffered disk reads: 64 MB in 1.67 seconds = 38.32 MB/sec Really strange that /dev/hdc is even faster! /dev/hdc: Timing buffer-cache reads: 128 MB in 0.13 seconds =984.62 MB/sec Timing buffered disk reads: 64 MB in 1.17 seconds = 54.70 MB/sec I ran hdparm 5 times at both harddisk and take the fastest result. /dev/hda and /dev/hdc are both WD 250GB / 8M, same model. at kernel 2.6, I got same performance for /dev/hda and /dev/hdc, around ~28MB/sec. 50%-100% slower then kernel 2.4 /proc/interrupt: CPU0 CPU1 0: 8014632 0 IO-APIC-edge timer 1: 2273 0 IO-APIC-edge i8042 2: 0 0 XT-PIC cascade 8: 1 0 IO-APIC-edge rtc 9: 0 0 IO-APIC-level acpi 14: 167888 0 IO-APIC-edge ide0 15: 199399 0 IO-APIC-edge ide1 20: 2186070 0 IO-APIC-level eth1 NMI: 0 0 LOC: 8014888 8014887 ERR: 0 MIS: 0 I tried to update my mobo BIOS (Intel D865GLC), remove one of the NIC (I have two), disable serial, parallel, USB etc just leave IDE and built-in display, no help. I have NO IDE cdrom and floppy, only 2 harddisk, 1 CPU, 4 x 512M DDR and a mobo at my machine. CONFIG_IDE=y CONFIG_BLK_DEV_IDE=y CONFIG_BLK_DEV_IDEDISK=y CONFIG_IDEDISK_MULTI_MODE=y CONFIG_BLK_DEV_IDECD=m CONFIG_BLK_DEV_IDESCSI=m CONFIG_BLK_DEV_IDEPNP=y CONFIG_BLK_DEV_IDEPCI=y CONFIG_IDEPCI_SHARE_IRQ=y CONFIG_BLK_DEV_GENERIC=y CONFIG_BLK_DEV_IDEDMA_PCI=y CONFIG_IDEDMA_PCI_AUTO=y CONFIG_BLK_DEV_ADMA=y CONFIG_BLK_DEV_PIIX=y CONFIG_BLK_DEV_IDEDMA=y CONFIG_IDEDMA_AUTO=y Kyle ----- Original Message ----- From: "Bas Mevissen" To: "Kyle" Cc: Sent: Friday, February 06, 2004 6:10 PM Subject: Re: ICH5 with 2.6.1 very slow > Kyle wrote: > > > hdparm /dev/hda > > /dev/hda: > > multcount = 16 (on) > > IO_support = 1 (32-bit) > > unmaskirq = 1 (on) > > using_dma = 1 (on) > > keepsettings = 0 (off) > > readonly = 0 (off) > > readahead = 256 (on) > > geometry = 30401/255/63, sectors = 488397168, start = 0 > > > > tried with hdparm -a8192 /dev/hda, not much different > > /dev/hdc same as /dev/hda > > > > Looks fine. That's strange. Maybe reboot the system and check > /proc/interrupts to see if none of them is excessive. > > What's your .config? Try with as less as possible IDE stuff enabled. > > Bas. > > >