Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 20 Dec 2001 08:12:55 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 20 Dec 2001 08:12:44 -0500 Received: from ntmail.avint.net ([198.165.75.239]:36369 "EHLO NTMAIL.avint.net") by vger.kernel.org with ESMTP id ; Thu, 20 Dec 2001 08:12:30 -0500 Content-Type: text/plain; charset=US-ASCII From: Brendan Pike Reply-To: spike@superweb.ca Organization: Linux User To: linux-kernel@vger.kernel.org Subject: Re: IDE Harddrive Performance Date: Thu, 20 Dec 2001 09:12:28 -0400 X-Mailer: KMail [version 1.2] MIME-Version: 1.0 Message-Id: <01122009122800.27161@spikes> Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Well i really cant explain this, [root@spikes spike]# /sbin/hdparm -t /dev/hda /dev/hda: Timing buffered disk reads: 64 MB in 6.65 seconds = 9.62 MB/sec [root@spikes spike]# cat /proc/ide/via ----------VIA BusMastering IDE Configuration---------------- Driver Version: 3.29 South Bridge: VIA vt82c586b Revision: ISA 0x47 IDE 0x6 Highest DMA rate: UDMA33 BM-DMA base: 0xe000 PCI clock: 33MHz Master Read Cycle IRDY: 1ws Master Write Cycle IRDY: 1ws BM IDE Status Register Read Retry: yes Max DRDY Pulse Width: No limit -----------------------Primary IDE-------Secondary IDE------ Read DMA FIFO flush: yes yes End Sector FIFO flush: no no Prefetch Buffer: yes yes Post Write Buffer: yes no Enabled: yes yes Simplex only: no no Cable Type: 40w 40w -------------------drive0----drive1----drive2----drive3----- Transfer Mode: UDMA PIO UDMA PIO Address Setup: 30ns 120ns 30ns 120ns Cmd Active: 90ns 90ns 90ns 90ns Cmd Recovery: 30ns 30ns 30ns 30ns Data Active: 90ns 330ns 90ns 330ns Data Recovery: 30ns 270ns 30ns 270ns Cycle Time: 60ns 600ns 60ns 600ns Transfer Rate: 33.0MB/s 3.3MB/s 33.0MB/s 3.3MB/s [root@spikes spike]# /sbin/hdparm -i /dev/hda /dev/hda: Model=FUJITSU MPG3409AT E, FwRev=82B9, SerialNo=VH06T1408HST Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=4 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=-66060037, LBA=yes, LBAsects=80063424 IORDY=yes, tPIO={min:240,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 mdma2 udma0 udma1 *udma2 udma3 udma4 udma5 [root@spikes spike]# /sbin/hdparm /dev/hda /dev/hda: multcount = 16 (on) I/O support = 3 (32-bit w/sync) unmaskirq = 1 (on) using_dma = 1 (on) keepsettings = 0 (off) nowerr = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 4983/255/63, sectors = 80063424, start = 0 Kernel 2.4.16 without patches. - 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/