OK, this is not any kind of official benchmarking, but here's a rough performance estimate of ChucK on the Raspberry Pi:

Setup:
Raspberry Pi Model B, no overclock, running Raspbian, 3.6.11+
USB sound card (little PnP device, <$10)
No monitor or keyboard; logged in via ssh

Testing multiple oscillators:
Up to 10 simultaneous SinOsc: no problem
10-12 mild glitching

Testing multiple shreds:
Using OTF examples, 6 shreds at once, no problem
7 shreds, major gapping

Testing LiSa:
LiSa-munger1 example works for up to 24 voices at once!

-------------------
Overclocking should improve performance. I expect that unplugging the ethernet cable and auto-running a patch would help too.

Overall, I'm pretty impressed with its capabilities!

Joel

On 12/05/2013 10:59 AM, Joel Matthys wrote:

Yes, it compiles and runs nicely on the Pi. I'll try a little performance test and get back to you shortly!

Joel

On 12/05/2013 10:54 AM, Robert Poor wrote:
Joel:

On Thu, Dec 5, 2013 at 8:46 AM, Joel Matthys <jwmatthys@yahoo.com> wrote:

I've run into this problem too while compiling ChucK for the Raspberry Pi.

I admit: In the back of my mind, I still view the Raspberry PI as a very capable embedded controller. So I'm happily agog at what it's really capable of.

Do you have ChucK running on the RPI? And if so, what's a rough assessment of its performance, e.g. how many voices can it synthesize?

- Rob
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