Comment 26 for bug 1917813

Revision history for this message
In , dsmythies (dsmythies-linux-kernel-bugs) wrote :

Created attachment 295155
graph of inverse impulse response measured verses theoretical failure probabilities.

As recently as late yesterday, I was still attempting to refine the gap time definition from comment #1. Through this entire process, I just assumed the processor would at least require 2 samples before deciding the entire system was idle. Why? Because it was beyond my comprehension that it would be based on one instant in time. Well, that was wrong, and it is actually based on one sample only at the HWP loop time (see attachment #294201), if idle state 2 is involved.

Oh, only idle state 2 was enabled for this. The reason I could not originally refine the gap definition, was that I did not yet know enough. I have to force idle state 2 increase the failure probabilities enough to find these limits without tests that would have otherwise run for days.