Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 5 Nov 2001 01:51:00 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 5 Nov 2001 01:50:51 -0500 Received: from conn.mc.mpls.visi.com ([208.42.156.2]:65215 "EHLO conn.mc.mpls.visi.com") by vger.kernel.org with ESMTP id ; Mon, 5 Nov 2001 01:50:34 -0500 Date: Mon, 5 Nov 2001 00:50:33 -0600 From: Ryan Hayle To: linux-kernel@vger.kernel.org Subject: Poor IDE performance with VIA MVP3 Message-ID: <20011105005033.A10060@isis.visi.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org I have a VIA MVP3 (VT82C586B) controller on my motherboard, and am experiencing extremely poor performance with a Maxtor 20G (52049U4) drive. It is an UDMA66-capable drive, but I'm only attempting to use UDMA33 (with an 80-pin cable, as recommended). The drive is detected and works just fine, with no errors reported, however the acces is painfully slow. hdparm -t varries from 970 K/sec to 2.5 M/sec. (See below) The drive is attached by itself to the first IDE channel. On the second I have a Maxtor 6.8G (90680D4) and a CDROM. hdparm -t on the second drive typically gives 8-9 M/sec. I manually set this drive with hdparm -X34 (mdma2), otherwise it generates errors. I have tried Linux 2.2.19, 2.4.12, and now 2.4.13, and all exhibit this same behavior. I was originally running with a 40-pin cable, and switched it to the 80 to see if it might help, but it had no effect. As some background information, I was originally running linux off of the second 6G drive, and opted to move it onto the 20G because it got better performance. Once I did this, however, the drive started performing slowly like this, regardless of whether I'm booting to it or the 6G drive. Does this sound like it's just a hardware problem? Has anyone experienced anything similar to this? Any advice would be greatly apreciated. Thanks, Ryan Hayle Please CC replies... Some relevent bits of info below... >From dmesg: Uniform Multi-Platform E-IDE driver Revision: 6.31 ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: IDE controller on PCI bus 00 dev 39 VP_IDE: chipset revision 6 VP_IDE: not 100% native mode: will probe irqs later ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx VP_IDE: VIA vt82c586b (rev 47) IDE UDMA33 controller on pci00:07.1 ide0: BM-DMA at 0xe000-0xe007, BIOS settings: hda:DMA, hdb:DMA ide1: BM-DMA at 0xe008-0xe00f, BIOS settings: hdc:DMA, hdd:DMA hda: Maxtor 52049U4, ATA DISK drive hdc: Maxtor 90680D4, ATA DISK drive ide0 at 0x1f0-0x1f7,0x3f6 on irq 14 ide1 at 0x170-0x177,0x376 on irq 15 hda: 40020624 sectors (20491 MB) w/2048KiB Cache, CHS=2491/255/63, UDMA(33) hdc: 13281408 sectors (6800 MB) w/256KiB Cache, CHS=13176/16/63, UDMA(33) Partition check: /dev/ide/host0/bus0/target0/lun0: p1 p2 p3 /dev/ide/host0/bus1/target0/lun0: p1 p2 p3 hdparm -it /dev/hda /dev/hdc /dev/hda: Model=Maxtor 52049U4, FwRev=DA6207V0, SerialNo=K40GTYJC Config={ Fixed } RawCHS=16383/16/63, TrkSize=0, SectSize=0, ECCbytes=57 BuffType=DualPortCache, BuffSize=2048kB, MaxMultSect=16, MultSect=16 CurCHS=16383/16/63, CurSects=16514064, LBA=yes, LBAsects=40020624 IORDY=on/off, tPIO={min:120,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 Timing buffered disk reads: 64 MB in 45.08 seconds = 1.42 MB/sec /dev/hdc: Model=Maxtor 90680D4, FwRev=PAS23B15, SerialNo=V40667NA Config={ Fixed } RawCHS=13176/16/63, TrkSize=0, SectSize=0, ECCbytes=29 BuffType=DualPortCache, BuffSize=256kB, MaxMultSect=16, MultSect=16 CurCHS=13176/16/63, CurSects=13281408, LBA=yes, LBAsects=13281408 IORDY=on/off, tPIO={min:120,w/IORDY:120}, tDMA={min:120,rec:120} PIO modes: pio0 pio1 pio2 pio3 pio4 DMA modes: mdma0 mdma1 *mdma2 udma0 udma1 udma2 Timing buffered disk reads: 64 MB in 7.37 seconds = 8.68 MB/sec /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: no no Post Write Buffer: no no Enabled: yes yes Simplex only: no no Cable Type: 40w 40w -------------------drive0----drive1----drive2----drive3----- Transfer Mode: UDMA DMA DMA DMA 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 120ns 600ns Transfer Rate: 33.0MB/s 3.3MB/s 16.5MB/s 3.3MB/s /proc/pci: PCI devices found: Bus 0, device 0, function 0: Host bridge: VIA Technologies, Inc. VT82C597 [Apollo VP3] (rev 4). Master Capable. Latency=16. Prefetchable 32 bit memory at 0xe0000000 [0xe3ffffff]. Bus 0, device 1, function 0: PCI bridge: VIA Technologies, Inc. VT82C598/694x [Apollo MVP3/Pro133x AGP] (rev 0). Master Capable. No bursts. Min Gnt=4. Bus 0, device 7, function 0: ISA bridge: VIA Technologies, Inc. VT82C586/A/B PCI-to-ISA [Apollo VP] (rev 71). Bus 0, device 7, function 1: IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 6). Master Capable. Latency=64. I/O at 0xe000 [0xe00f]. Bus 0, device 7, function 3: Host bridge: VIA Technologies, Inc. VT82C586B ACPI (rev 16). IRQ 9. Bus 0, device 8, function 0: VGA compatible controller: nVidia Corporation Riva TnT 128 [NV04] (rev 3). IRQ 11. Master Capable. Latency=248. Min Gnt=5.Max Lat=1. Non-prefetchable 32 bit memory at 0xe4000000 [0xe4ffffff]. Prefetchable 32 bit memory at 0xe5000000 [0xe5ffffff]. Bus 0, device 9, function 0: Multimedia video controller: Brooktree Corporation Bt848 TV with DMA push (rev 17). IRQ 10. Master Capable. Latency=64. Min Gnt=16.Max Lat=40. Prefetchable 32 bit memory at 0xe8001000 [0xe8001fff]. Bus 0, device 11, function 0: Ethernet controller: 3Com Corporation 3c905B 100BaseTX [Cyclone] (rev 0). IRQ 5. Master Capable. Latency=64. Min Gnt=10.Max Lat=10. I/O at 0xe800 [0xe87f]. Non-prefetchable 32 bit memory at 0xe8000000 [0xe800007f]. - 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/