Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263183AbTGAVVi (ORCPT ); Tue, 1 Jul 2003 17:21:38 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263918AbTGAVVi (ORCPT ); Tue, 1 Jul 2003 17:21:38 -0400 Received: from madrid10.amenworld.com ([217.174.194.138]:39178 "EHLO madrid10.amenworld.com") by vger.kernel.org with ESMTP id S263183AbTGAVVd (ORCPT ); Tue, 1 Jul 2003 17:21:33 -0400 Date: Tue, 1 Jul 2003 23:30:36 +0200 From: DervishD To: Linux-kernel Subject: Slow writer... Message-ID: <20030701213036.GB239@DervishD> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit User-Agent: Mutt/1.4i Organization: Pleyades User-Agent: Mutt/1.4i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1799 Lines: 46 Hi all :)) I've installed a PlexWriter Premium (52x) in my system, and the highest speed I can achieve with it is 24x with data and 15x with audio (the speed difference is quite strange :??). The hard disk is UDMA5, so it should provide the data at 52x. This is the info for the hard disk: /dev/root: Model=ST340016A, FwRev=3.05, SerialNo=3HS040AC Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=unknown, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=78165360 IORDY=on/off, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 UDMA modes: udma0 udma1 udma2 udma3 udma4 *udma5 AdvancedPM=no WriteCache=enabled Drive conforms to: device does not report version: 1 2 3 4 5 As you can see, the udma5 mode is active, and this is a test from hdparm on the same disk: /dev/root: Timing buffered disk reads: 64 MB in 1.58 seconds = 40.51 MB/sec Am I doing something wrong, like not tuning correctly something in the disk? I am using a DIY box with Linux 2.4.21, CPU Duron 850, and no processes are running while burning in order to not disturb the writing process. I'm afraid that DMA is not working properly or maybe the motherboard is damaged or something like that :?? Thanks in advance :) Ra?l N??ez de Arenas Coronado -- Linux Registered User 88736 http://www.pleyades.net & http://raul.pleyades.net/ - 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/