[PD] High CPU usage when tracks are muted (Raspberry Pi)

[Pagano, Patrick]

This might be the wrong direction but for a multichannel installation I has great success with Eric Lyon's player~ abstraction in his pd potpourri set.
Not sure if it will work since its an external but I had 20+ players firing off and never had a glitch.

Cheers~
pp

On May 5, 2013, at 2:37 PM, "Julian Brooks" <jbeezez at gmail.com<mailto:jbeezez at gmail.com>> wrote:

Yep good call, maybe a Pd update might fix it
(pre-compiled version for RPi on Miller's webpage
http://crca.ucsd.edu/~msp/software.html )

as from 0.44-2 the denormal thing has (apparently) been sorted.


On 5 May 2013 18:58, Martin Peach <martin.peach at sympatico.ca<mailto:martin.peach at sympatico.ca>> wrote:
On 2013-05-05 13:52, Halfdan Mouritzen wrote:

Yes, what I don't understand though is _why_ we see such an increase
in CPU load, when the channels are muted.


Could it be that denormals are produced when the line gets close to 0?
Depending on how the floating point is set up that could cause a lot of context switching.
What happens if you fade to 0.001 instead of 0?


Martin



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