Date: Sat, 1 Aug 1998 16:18:35 +0200 (CEST) From: Andre Albsmeier <andre.albsmeier@mchp.siemens.de> To: scot@planet-three.com (Scot Elliott) Cc: bromage@queens.unimelb.edu.au, freebsd-stable@FreeBSD.ORG Subject: Re: CD writers as a backup medium Message-ID: <199808011418.QAA20459@internal> In-Reply-To: <Pine.BSF.4.00.9808011131001.6269-100000@tweetie.online.barbour-index.co.uk> from Scot Elliott at "Aug 1, 98 11:34:50 am"
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> Hi. > > I use a Plasmon CDR-480 (which is just a Panasonic CW-7502. It's > supported by the cdrecord port. I am using the old CDR100 from Yamaha with cdrecord (no CAM). > > cdrecord automatically sets its priotity quite high, but I personally run > it and the mkisofs process with real time priority (see rtprio). I That's what I do as well (rtprio 5, yes, the number doesn't matter as long as it's the only rtprio process). > believe this is what /usr/share/examples/worm/... use with the worm > devices. My machine isn't overloaded, so I can't say what happens during > high usage, but I've never had an overrun yet - and I always do Think you mean an underrun here :-) > mkisofs-cdrecord piping rather than creating an ISO image first. I create the iso image first but while running cdrecord with rtprio, I make a buildworld, use netscape, run rc5,... all at the same time and never got an underrun. I am writing my CDs at 4x speed :-) The write buffer never goes below 97% and the CDR100 only has 256k buffer. > > If you want any more help let me know. > > Scot. -Andre To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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