Re: [linux-audio-dev] Linux kernel HZ, audio latency and how to measure?

On Fri, 2006-08-18 at 12:38 -0400, Paul Davis wrote:
> On Fri, 2006-08-18 at 23:10 +0700, Mulyadi Santosa wrote:
> > Is there any relationship between kernel HZ and audio timing? I imagine
>
> no. or almost none.
>
> recording audio doesn't involve using the system timer at all. the only
> clock involved is the sample clock that drives the audio interface.
>
> having HZ set too high could conceivably make the system more likely to
> xrun, but this is not likely with a fully RT kernel.

High HZ will improve MIDI timing though. MIDI is more likely to be
polled than interrupt driven.

Lee
Received on Sat Aug 19 04:15:12 2006