[PD] Pd 20% idle CPU usage on MBP

[Jamie Bullock]

On 8 Nov 2010, at 12:15, Jamie Bullock wrote:

> 
> 
> I don't think portaudio is that great for realtime work, although I think this is bordering on worst-case (compared to other apps). I've a feeling the problem might lie in the buffer size used for passing audio to portaudio.
> 

And I've just noticed that Pd uses the PABLIO (blocking I/O) interface to Portaudio. This might be part of the problem as it certainly isn't designed fo low-latency work.

cf. http://music.columbia.edu/pipermail/portaudio/2002-March/000578.html

Jamie