Just in case somebody missed this mail in their holiday inbox :).... Any good ideas for this? On Tue, Aug 5, 2014 at 5:37 PM, Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx> wrote: > 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 -- 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
