On Thu, Mar 12, 2009 at 11:44:56AM -0600, michael k lang wrote: > I would like to be able to put a single core to the C6 state. Also to > set individual frequency of cores in a socket. C states are handled by the ACPI processor driver, not the cpufreq driver. They're a function of the idle loop in the kernel - a CPU in a C state other than C0 can't execute code. To the best of my knowledge, it's not possible to set the frequency of individual cores in a package. The primary reason to alter frequency is to be able to drop the core voltage, and Intel's architecture fixes the voltage per package. Dropping the frequency of an individual core rather than the entire package wouldn't save power. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe cpufreq" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
