R: [PD] Real-time Linux; hard req. and suggestions?
Davide Morelli
info at davidemorelli.it
Fri Sep 8 09:41:33 CEST 2006
> I'm currently using Fedora Core 4 with the 2.4.19 kernel on a
> 1.6 GHz Sempron processor (could be upgraded to an Athlon64).
> I'm not sure which system specs are most important for
> getting good throughput, front side bus, memory access
> speed...how to balance them?
>
try CCRMA packages on top of your FC4 system, they come with 2 realtime
kernels: 50% preepmption (rdt kernels) and 100% preemption (rtt ones). see
http://ccrma.stanford.edu/planetccrma/software/node3.html
I think the interrupt priority of your soundcard should be high and it
should not be shared with other devices, jackd should be executed with
realtime priority ( -R flag).
I'd really like to know how to set the irq priority.. but i don't.. i guess
it has something to do with APIC/ACPI...
If anyone knows how to set:
* the process priority
* the irq priority
could please tell how? i can't find anything on the web..
ciao,
davide.
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