Re: Pioneer DVR-106D issues
>From neutrino99@hotmail.com Tue Dec 16 04:14:51 2003
>Well, I finally found a DVD-ROM to test on, though I'm not 100% sure if it's
>free of CSS (mplayer doesn't seem to indicate it's using CSS, so that's a
>good sign). The read speed for the disk ends up topping out at around 3MB/s
>with the CPU using about 80%-90% CPU time in kernel space. A test of reading
>a DVD-R 4x shows around 4.5MB/s with the same CPU usage though a lot more
>stutter in apps.
This looks as if there is no DMA :-(
>I'm actually beginning to wonder if the issue is partially my ide cable
>itself. I salvaged it from another relatively modern computer (a gateway
>computer bought in late '99/early '00), so I assumed that the cable wouldn't
>be an issue.
If you don't use a 80 pin cable, get a new one.
>And my processor is a 1.26Ghz Athlon XP, so I highly doubt that it has
>anything to do with the CPU itself. It very much sounds like a scheduling
>issue, really, and I'd like to find some other people with the same issue to
>figure out the commonality. If there is one, it'll be a lot easier to step
>forward to the lkml to see if they can reproduce and debug what we believe is
>the source of the problem.
Of course, it may be a scheduling problem, but this would proove that somebody
did rewrite the scheduler without doing the needed tests afterwards.
Jörg
--
EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
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