Date: Mon, 3 Dec 2001 11:05:01 +0100 From: Miklos Niedermayer <mico@bsd.hu> To: =?iso-8859-2?Q?S=F8ren?= Schmidt <sos@freebsd.dk> Cc: Greg Lehey <grog@FreeBSD.ORG>, current@FreeBSD.ORG Subject: Re: HEADSUP ATA support for newer SiS chipsets added Message-ID: <20011203110501.E373@bsd.hu> In-Reply-To: <200112030950.fB39o2087766@freebsd.dk> References: <20011203103056.B373@bsd.hu> <200112030950.fB39o2087766@freebsd.dk>
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Hi, On Mon, Dec 03, 2001 at 10:50:02AM +0100, Søren Schmidt wrote: > 1+0 records in > 1+0 records out > 524288 bytes transferred in 0.006204 secs (84507936 bytes/sec) > > But the disk needs to be idle or you risk getting another > request inbetween ruining the cached data, or if you disk has > less cache that 512k it will also fail. I think they are idle (looking at vmstat -i), but i can't be sure. However i have 2 machines here with VIA 82C596 chipset... > If that all is OK, you should see something close to the > real transfer speed of the interface, IF the ATA support > code has setup your HW correctly. What controller and disks > are we talking about here ? # dmesg |grep ata atapci0: <VIA 82C596 ATA66 controller> port 0xd800-0xd80f at device 4.1 on pci0 ata0: at 0x1f0 irq 14 on atapci0 ad0: 28629MB <QUANTUM FIREBALLlct20 30> [58168/16/63] at ata0-master UDMA66 1+0 records in 1+0 records out 524288 bytes transferred in 0.029881 secs (17545865 bytes/sec) 1+0 records in 1+0 records out 524288 bytes transferred in 0.038572 secs (13592425 bytes/sec) 1+0 records in 1+0 records out 524288 bytes transferred in 0.024870 secs (21081110 bytes/sec) 1+0 records in 1+0 records out 524288 bytes transferred in 0.025267 secs (20749907 bytes/sec) 1+0 records in 1+0 records out 524288 bytes transferred in 0.025247 secs (20766367 bytes/sec) It's idle (the LED isn't blinking after/before dd and vmstat -i doesn't show any ata0 activity). Even my Intel PIIX4 ATA33 controller with the same disk performs better (a little)... Bye ______ o _. __ / / / (_(_(__(_) @ bsd.hu To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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