Date: Sun, 28 Mar 1999 17:55:55 -0500 (EST) From: Brian Feldman <green@unixhelp.org> To: Soren Schmidt <sos@freebsd.dk> Cc: current@FreeBSD.ORG Subject: Re: UPDATE4: ATA/ATAPI driver new version available. Message-ID: <Pine.BSF.4.05.9903281748170.78386-100000@janus.syracuse.net> In-Reply-To: <199903281858.UAA55984@freebsd.dk>
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I tried this out just as soon as I saw the announcement! Your driver is really coming along well. I have three basic problems with it: 1. A hard reset is necessary to get the CD-ROM drive to work with acd. wdc0: unit 1 (atapi): <NEC CD-ROM DRIVE:285/3.04>, removable, dma, iordy wcd0: drive speed 2067KB/sec, 128KB cache wcd0: supported read types: CD-R, CD-DA wcd0: Audio: play, 16 volume levels wcd0: Mechanism: ejectable tray wcd0: Medium: no/blank disc inside, unlocked 2. My LS-120 still has no reliability with the driver, as reads are corrupted extremely often. wdc1: unit 0 (atapi): <LS-120 COSM 02 UHD Floppy/0271C09T>, removable, iordy wfd0: medium type unknown (no disk) 3. DMA is ineffective with file-system use. I can read from the raw device rad0 at 4.5MB/s with a 1mb block size, but when I use iozone performance is around 2.5MB/s. Mounting wd shouldn't affect that, should it? I used the same device special files to mount as before, with ATA_STATIC being used, and noticed this. Better yet, I'll try this with a corrected fstab then report back. Brian Feldman _ __ ___ ___ ___ green@unixhelp.org _ __ ___ | _ ) __| \ http://www.freebsd.org/ _ __ ___ ____ | _ \__ \ |) | FreeBSD: The Power to Serve! _ __ ___ ____ _____ |___/___/___/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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