Re: [linux-audio-dev] user lowlatency kernel experience

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Subject: Re: [linux-audio-dev] user lowlatency kernel experience
From: Benno Senoner (sbenno_AT_gardena.net)
Date: Wed Jun 13 2001 - 21:02:42 EEST


On Wednesday 13 June 2001 15:30, Joakim Verona wrote:

>
> so, since people here seem to think that the low-latency kernel is
> really great, i suspect i have missed something. is there a way to get
> processes to get sceduled promptly, but at the same time not hog the cpu
> if they try?

not seems to think, IT IS GREAT
:-)

Regarding your problems: it's not the fault of the lowlatency kernel that
your application hangs but it is the application itself that must handle CPU
overload situations properly.
For example the app could run a higher priority watchdog thread to see if a
normal thread (without realtime privileges) still gives signs of life.
If the CPU gets overloaded the app could either stop the audio, shut down
itself , mute a few voices/ audio stream or whatever.

Developing "hard" realtime applications is not an easy task, especially in
the audio world where the CPU load varies in an unpredictable fashion.

Benno.


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