On 06/25/2014 06:46 PM, Fengguang Wu wrote: > f4f5df6f142f679 d5a085970b0b88b8c82303d2c > --------------- ------------------------- > 773859 ~ 0% -9.2% 702704 ~ 0% TOTAL will-it-scale.per_thread_ops Has this impacted more than a single system? I wonder if that system was using the HPET where all the others were using the TSC.