Date: Fri, 29 Sep 2000 18:22:51 +1200 From: "Dan Langille" <dan@langille.org> To: John Galt <galt@inconnu.isu.edu> Cc: chat@FreeBSD.ORG Subject: Re: CD writers - recommendations Message-ID: <200009290622.SAA45872@ducky.nz.freebsd.org> In-Reply-To: <Pine.LNX.4.21.0009282041540.6683-100000@inconnu.isu.edu> References: <xzpk8bxq7a4.fsf@flood.ping.uio.no>
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On 28 Sep 2000, at 21:29, John Galt wrote: > > The reason why ATAPI CD-ROM burners are so sensitive to CPU load is > > that they don't support disconnection or tagged queueing, so commands > > must be sent sequentially and the CPU must wait for them to complete. > > So IOW IDE devices throw an interrupt whenever they're operating, SCSI > devices throw an interrupt only whenever the host adapter is starving for > commands. Sounds exactly like what I wsas saying in the first place, just > using proper terminology... And this is the main reason why I'm going to go for a SCSI cdrom burner. I'm not sure which one yet, but Plextor seems to be the fav. And Ricoh. I've been looking at http://www.fadden.com/cdrfaq/faq05.html#[5-1] as a source of information. Also, since I'll be using cdrecord, I've been reading http://www.fokus.gmd.de/research/cc/glone/employees/joerg.schilling/pri vate/cdwriters-1.9.html Thanks for those that have contributed. -- Dan Langille The FreeBSD Diary - http://www.freebsddiary.org/ FreshPorts - http://freshports.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-chat" in the body of the message
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