Date: Tue, 22 Feb 2000 09:15:10 -0800 From: Arun Sharma <adsharma@sharmas.dhs.org> To: Soren Schmidt <sos@freebsd.dk> Cc: freebsd-current@FreeBSD.ORG Subject: Re: ABIT BP6, UDMA-66 and wdc AC310200 Message-ID: <20000222091510.A2230@sharmas.dhs.org> In-Reply-To: <200002221054.LAA09790@freebsd.dk>; from Soren Schmidt on Tue, Feb 22, 2000 at 11:54:40AM %2B0100 References: <20000222023156.A1426@sharmas.dhs.org> <200002221054.LAA09790@freebsd.dk>
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On Tue, Feb 22, 2000 at 11:54:40AM +0100, Soren Schmidt wrote: > It seems Arun Sharma wrote: > > I have the above hardware combination and here's the dmesg from > > 4.0-current: > > > > atapci0: <Intel PIIX4 ATA33 controller> port 0xf000-0xf00f at device 7.1 on pci0 > > atapci1: <HighPoint HPT366 ATA66 controller> port 0xb400-0xb4ff,0xb000-0xb003,0xac00-0xac07 irq 11 at device 19.0 on pci0 > > ata2: at 0xac00 on atapci1 > > atapci2: <HighPoint HPT366 ATA66 controller> port 0xc000-0xc0ff,0xbc00-0xbc03,0xb800-0xb807 irq 11 at device 19.1 on pci0 > > ad4: 9787MB <WDC AC310200R> [19885/16/63] at ata2-master using UDMA33 > > > > How do I get my disk to work in UDMA66 mode ? Is it supported with for > > my disk ? > > > Do you have the prober 80pin cable ?? if so please provide a verbose boot... Thanks, that fixed the problem. Has anyone benchmarked the driver ? A very unscientific benchmark that I ran didn't seem to produce much of a difference between UDMA33 and UDMA66. In both cases, I got roughly 13 MB/s. # dd if=/dev/ad4s2 of=/dev/null bs=40960k count=10 10+0 records in 10+0 records out 419430400 bytes transferred in 30.797045 secs (13619177 bytes/sec) Can anyone point me to some benchmarks and comment about the improvement ? -Arun To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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