From owner-freebsd-current Mon Mar 8 8:50:45 1999 Delivered-To: freebsd-current@freebsd.org Received: from mail.rdc1.on.home.com (ha1.rdc1.on.wave.home.com [24.2.9.66]) by hub.freebsd.org (Postfix) with ESMTP id A8D8714F22 for ; Mon, 8 Mar 1999 08:50:25 -0800 (PST) (envelope-from street@iname.com) Received: from mired.eh.local ([24.64.150.8]) by mail.rdc1.on.home.com (InterMail v4.00.03 201-229-104) with ESMTP id <19990308165007.WXFJ18874.mail.rdc1.on.home.com@mired.eh.local> for ; Mon, 8 Mar 1999 08:50:07 -0800 Received: (from kws@localhost) by mired.eh.local (8.9.3/8.9.3) id LAA21087; Mon, 8 Mar 1999 11:50:07 -0500 (EST) (envelope-from kws) To: current@FreeBSD.org Subject: ATA/ATAPI speed test From: Kevin Street Date: 08 Mar 1999 11:50:06 -0500 Message-ID: <87r9r09b9d.fsf@mired.eh.local> Lines: 37 X-Mailer: Gnus v5.6.45/XEmacs 20.4 - "Emerald" Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG I tried the ata drivers on the weekend and they work fine, but seem a bit slow. I ran my usual buildworld script with the old and new drivers with these elapsed time results: With the wd drivers 2:05:32 With the ata drivers 2:54:21 So that's nearly 40% longer for the ata case - is this all likely due to dma? /usr/obj is on drive 0, /usr/src is on drive 1 and they are mounted with soft-updates and noatime. The tests were not entirely pure as there was some other minor activity running on the machine as well. The ata dmesg output is: ata-pci0: rev 0x01 on pci0.4.1 ata0 at 0x01f0 irq 14 on ata-pci0 ata1 at 0x0170 irq 15 on ata-pci0 ... ad0: ATA-3 disk at ata0 as master ad0: 8063MB (16514064 sectors), 16383 cyls, 16 heads, 63 S/T, 512 B/S ad0: 16 secs/int, 0 depth queue ad1: ATA-4 disk at ata1 as master ad1: 6149MB (12594960 sectors), 13328 cyls, 15 heads, 63 S/T, 512 B/S ad1: 16 secs/int, 0 depth queue Waiting 2 seconds for SCSI devices to settle acd0: CDROM drive at ata0 as slave acd0: drive speed 5515KB/sec, 256KB cache acd0: supported read types: CD-R, CD-RW, CD-DA acd0: Audio: play, 256 volume levels acd0: Mechanism: ejectable tray acd0: Medium: no/blank disc inside, unlocked -- Kevin Street street@iname.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message