>From Dominik Brodowski on Thursday, 07 July, 2005: >On Thu, Jul 07, 2005 at 03:51:17PM -0500, Joseph Pingenot wrote: >> >Just a latest question: can be p4-clockmod used together with >> >speedstep-centrino? If not, would it make any sense to patch >> >speedstep-centrino to use this feature too? >> I'm a little confused. How is this different from the ACPI CPU throttling >> states (/proc/acpi/processor/CPUn/limit to set, throttling to see all >> T-states available)? >T-states _tend_ to be utilized using chipset logic, while p4-clockmod is >done in-CPU. >> On my 1.5-year-old Pentium-M, frequency scaling and T-states are different >> beasties, and act entirely differently. I'm currently in the process of >> rewriting my governor's brain to deal with the two more intelligently. >In your case, I would care about throttling. In very most cases it actually >increases energy consumption, as the state being entered is technically the >same to ACPI C2 (IIRC), so it is only "forced" idling and only useful if >"forced" idling is needed to not need active cooling.
Why would this cause more energy consumption? -Joseph -- [EMAIL PROTECTED] Graduate student in physics, Free Software developer. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/