> Tito: have you noticed any problems in your linux system using the pa_cb IO?

Tested with portaudio v20110326 and v20111121

Linux 2.6.33.7.2-rt30 #6 SMP PREEMPT RT x86_64 AMD Phenom(tm) II X6 1090T

-odac -m0 -d --sched=68 -+rtaudio=pa_cb -b64
sr    = 96000
ksmps = 1

...
rtaudio: PortAudio module enabled ... using callback interface
...
audio buffered in 64 sample-frame blocks
...

It is fine when the cpu can breathe. I have voluntarily caused xruns
and noticed the same average between -+rtaudio=pa_cb and -+rtaudio=jack

tito

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