From owner-freebsd-current Tue Dec 4 12:21: 7 2001 Delivered-To: freebsd-current@freebsd.org Received: from mailgate.originative.co.uk (mailgate.originative.co.uk [62.232.68.68]) by hub.freebsd.org (Postfix) with ESMTP id 0CBF937B405; Tue, 4 Dec 2001 12:20:56 -0800 (PST) Received: from lobster.originative.co.uk (lobster [62.232.68.81]) by mailgate.originative.co.uk (Postfix) with ESMTP id 2B7671D169; Tue, 4 Dec 2001 20:20:54 +0000 (GMT) Date: Tue, 04 Dec 2001 20:20:54 -0000 From: Paul Richards To: sos@freebsd.dk, Miklos Niedermayer Cc: Greg Lehey , current@FreeBSD.ORG Subject: Re: HEADSUP ATA support for newer SiS chipsets added Message-ID: <33160000.1007497254@lobster.originative.co.uk> In-Reply-To: <200112031010.fB3AAlL92880@freebsd.dk> References: <200112031010.fB3AAlL92880@freebsd.dk> X-Mailer: Mulberry/2.1.1 (Linux/x86) MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG --On Monday, December 03, 2001 11:10:47 +0100 SXren Schmidt wrote: > It seems Miklos Niedermayer wrote: >> 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... >> >> atapci0: port 0xd800-0xd80f at device 4.1 >> on pci0 ata0: at 0x1f0 irq 14 on atapci0 >> ad0: 28629MB [58168/16/63] at ata0-master >> UDMA66 >> >> 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)... > > Hmm, yes that looks somewhat on the low side... > Well, two things, the older VIA chips are not the best performers, but > I still think it should be better than that, I'll run some tests here, > I might have messed up something... > Are we talking -current or -stable here ? I'm getting even worse performance. root@lobster# for n in 1 2 3 4 5 do dd if=/dev/ad0 of=/dev/null bs=512k count=1 done 1+0 records in 1+0 records out 524288 bytes transferred in 0.056385 secs (9298353 bytes/sec) 1+0 records in 1+0 records out 524288 bytes transferred in 0.062027 secs (8452580 bytes/sec) 1+0 records in 1+0 records out 524288 bytes transferred in 0.056339 secs (9305947 bytes/sec) 1+0 records in 1+0 records out 524288 bytes transferred in 0.056325 secs (9308271 bytes/sec) 1+0 records in 1+0 records out 524288 bytes transferred in 0.056482 secs (9282398 bytes/sec) root@lobster# atapci0: port 0xb800-0xb80f at device 31.1 on pci0 ad0: 58644MB [119150/16/63] at ata0-master tagged UDMA100 Paul Richards FreeBSD Services Ltd http://www.freebsd-services.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message