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Re: PPP and cdparanoia



On Fri, 07 Jan 2000 20:03:24 GMT, Alisdair McDiarmid writes:
>No idea. You could email the author of cdparanoia and ask him to work
>out a way of reducing interrupt usage. You could report it as a kernel
>bug - ppp and /dev/ttyS* should have higher priority than PIO ATAPI
>devices, perhaps.

i cannot think of a way how the data should come from the cdrom to ram and then to disk _without_ many an interrupt

>> btw, ripping from /dev/hdb, encoding with gogo (nice +20) _and_
>> burning on /dev/scd0 (which is ide-scsi-emulation, in fact
>> /dev/hdc), speed=2, at the same time gives a high load, but works
>> fine otherwise.
>
>Uh, what? It stops PPP packet loss? And if you're not burning a CD on
>/dev/hdc, PPP drops packets?

no, but if ripping from an atapi-cdrom generates lots of interrupts, burning on an atapi-cdr should do so, too. one would think that two interrupt-emitting processes would interfere with each other, as is the case with ripping and a ppp-connection via an asynchronous line. but ripping on one atapi-device and burning on another works just fine.

>ATAPI CDROMs really do suck.

that´s right, but they´re _cheap_, therefore the only option for some of us...

&rw
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