Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 3 Dec 2001 03:51:33 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 3 Dec 2001 03:50:46 -0500 Received: from yuha.menta.net ([212.78.128.42]:27040 "EHLO yuha.menta.net") by vger.kernel.org with ESMTP id ; Sun, 2 Dec 2001 17:37:38 -0500 Content-Type: text/plain; charset=US-ASCII From: Ivanovich To: Mark Hahn , Erik Elmore Subject: Re: EXT3 - freeze ups during disk writes Date: Sun, 2 Dec 2001 23:37:17 +0100 X-Mailer: KMail [version 1.2] Cc: linux-kernel@vger.kernel.org In-Reply-To: In-Reply-To: MIME-Version: 1.0 Message-Id: <01120223371700.01168@localhost.localdomain> Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org A Diumenge 02 Desembre 2001 19:15, Mark Hahn va escriure: > in other mail I asked Erik about the disk's mode: it is PIO, > so the pathetic speed and crippling VM/Ext2 performance is > entirely expected. I'm guessing he's missing CONFIGs of either > the chipset-specific driver or one of: > CONFIG_BLK_DEV_IDEDMA_PCI=y > CONFIG_BLK_DEV_ADMA=y > CONFIG_IDEDMA_PCI_AUTO=y > CONFIG_BLK_DEV_IDEDMA=y > CONFIG_IDEDMA_AUTO=y > > > > I've seen a couple of reports where ext3 appears to exacerbate > > > the effects of poor hdparm settings. What is your raw disk > > > throughput, from `hdparm -t /dev/hda'? > > > > `hdparm -t /dev/hda` reports: > > > > # hdparm -t /dev/hda > > > > /dev/hda: > > Timing buffered disk reads: 64 MB in 16.76 seconds = 3.82 MB/sec maybe the only thing he is missing is the *AUTO configs you could try: # /sbin/hdparm -c 1 -d 1 /dev/hda which tries to do this: /dev/hda: setting 32-bit I/O support flag to 1 setting using_dma to 1 (on) and then test again with -t to see if it gets better... - 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/