Out of curiosity, I installed the Intel Power Gadget on my i7/8GB/512GB and since it takes samples every 50ms by default, I'd like to know if it'll impact the performance... I know I can increase the sampling frame and avoid logging data to file, but would it still impact?
Any thoughts on this?
Thanks.
Ahh, good old Heisenberg, eh? ;-)
My experience on a 2012 i7 MBA suggests that at the longest sampling increment (500 ms) it consumes 0.8% - 1.2%. At the shortest sampling increment (20 ms) it seems to consume 1.6% - 2.0% of the CPU power. So its impact seems to be measurable but not overly significant compared to other programs.
During idle, the processor speed is the same regardless of the sampling increment set in Power Gadget.