[PD] performance on osX

bsoisoi bsoisoi at mac.com
Thu Nov 22 05:03:34 CET 2007


Its PortAudio running through CoreAudio.  If you use Jack on OS X,  
you'll see your % usage decrease
significantly.  I can easily cut my CPU usage in half by using Jack on  
OS X.  I've also seen notable decreases when using cycling74's  
soundflower.

On a similar note, if you happen to be using a firewire audio  
interface, you're cpu usage will be even higher!
~Brandon

ps: sorry if ppl are getting reposts, I'm having severe mail issues.

On Nov 21, 2007, at 10:49 PM, chris clepper wrote:

> I suspect it is Apple's subpar OpenGL causing this.  Rather than use a
> ton of sphere objects use [model] and an obj of a sphere.  Performance
> should increase.
>
> On Nov 21, 2007 1:38 PM, cyrille henry <cyrille.henry at la-kitchen.fr>  
> wrote:
>> hello,
>>
>> i just made a performance test on osX, using pmpd exemple 22 (i had  
>> similar problem with other patch, this is just an exemple)
>>
>> with pd extended, or pd/Gem and pmpd compiled from cvs, this patch  
>> use about 40% CPU on a macbook pro 2.33Ghz.
>>
>> on my computer (dual core 2Ghz), it use about 22% (in both case, %  
>> are mesure for only 1 CPU : both computer are dual core)
>> i did not do any thing special in my computer to optimise  
>> compilation, nor in the macbook.
>>
>> could anyone with a macbook pro could test this patch and tell me  
>> the CPU used?
>> does anyone know why the macbook is so slow?
>>
>>
>> thanks
>> Cyrille
>>
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