> Who did you find is doing the sampling in the real world use case? AFAIR > if one one is querying busyness, I thought there would only be the GuC > ping worker which runs extremely infrequently (to avoid some counter > overflow). > > Regards, > > Tvrtko > > > Hi Tvrtko, the case where we are launching many tiny transcode workloads in quick succession sees the gt_unpark/park getting his hundreds or thousands of time - this is where the biggest hit comes from (as per the worst case example number in the comment). ...alan