On Mon, Aug 16, 2010 at 01:11:53AM +0200, Pierre Massat wrote:
I have two questions: Is there a way i could tell my laptop to use a certain cpu rule from within Pd? In a previous post I was advised to change the cpu rules so as to prevent the processor from lowering it's frequency. I am slightly afraid of frying my laptop if the cpu rule is set on Performance all the time, so i m wondering if i could let Pd choose depending on what subpatch is on. Is there a way to do this using [shell]?
Usually you have a tool like "cpufreq-set" available to use as a shell command to change the governors for CPU powersaving, check the man page for usage. You can use this with [shell] or write a quick pdlua object or whatever you prefer to use to execute external commands. "cpufreq-info" gives info about the current and available settings.
I run the "ondemand" governor here and generally never touch it. The kernel scales frequencies up and down on its own and does so much faster, than I or Pd could do manually. But I guess, this depends a bit on your hardware.
Ciao
Frank