On Mon, Jul 07, 2008 at 05:02:30PM +0200, Arnd Bergmann wrote: > From: Christian Krafft <[EMAIL PROTECTED]> > > This patch adds a cpufreq governor that takes the number of running spus > into account. It's very similar to the ondemand governor, but not as complex. > Instead of hacking spu load into the ondemand governor it might be easier to > have cpufreq accepting multiple governors per cpu in future. > Don't know if this is the right way, but it would keep the governors simple.
I've got a basic question about this idea: Does it throttle only idle spus or is there a single control for the entire PPE + SPE complex? I can think of many situations in our code where at certain times we may only be able to keep N out of M spes occupied (because of how we've expressed our task-specific parallelism), but we're counting on the ones we're using running at full speed so that we can maintain our real-time throughput. (Our application does real-time signal processing of continuously streaming data) Is there a way to disable the "throttling SPEs" feature short of configuring it out of the kernel? Eric _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
