Hello! I am working with an AMD family 14h Processor. And I believe that the governor is not behaving as expected. On the _PSS table, the transition_latency and bus_master_latency are set to 0. The AMDs BIOS development guide (page 60 and 61) http://developer.amd.com/wordpress/media/2012/10/43170_14h_Mod_00h-0Fh_BKDG.pdf they recommend to use value of 0. Is 0 valid value? The governor will work properly with this value? What could be a good default value? Is there a way to experimentally measure the latency? Thanks for your help! Extract from dmesg: [ 0.843340] Extracting state 0 [ 0.843374] State [0]: core_frequency[1650] power[6075] transition_latency[0] bus_master_latency[0] control[0x0] status[0x0] [ 0.843481] Extracting state 1 [ 0.843513] State [1]: core_frequency[1320] power[3712] transition_latency[0] bus_master_latency[0] control[0x1] status[0x1] [ 0.843618] Extracting state 2 [ 0.843652] State [2]: core_frequency[825] power[1472] transition_latency[0] bus_master_latency[0] control[0x2] status[0x2] [ 0.843757] Extracting state 3 [ 0.843790] State [3]: core_frequency[528] power[1008] transition_latency[0] bus_master_latency[0] control[0x3] status[0x3] -- Ricardo Ribalda -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html