[linux-audio-dev] Linux kernel HZ, audio latency and how to measure?
a_mulyadi at telkom.net
Fri Aug 18 19:07:47 UTC 2006
> > recording audio doesn't involve using the system timer at all. the
> > only clock involved is the sample clock that drives the audio
> > interface.
I see. I took a wrong conclusion then....
> > having HZ set too high could conceivably make the system more
> > likely to xrun, but this is not likely with a fully RT kernel.
Ehm, excuse me. "xrun" here refers to a program's name?
> High HZ will improve MIDI timing though. MIDI is more likely to be
> polled than interrupt driven.
polled? Well, interesting. Do you mean MIDI playback?
BTW, a friend of mine suggest to take audio synthesizing as the
"benchmark" for this HZ experiment. So far, I guess that synthesizing
is also timing sensitive application, thus tweaking HZ could make
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