Hi, According to testing so far, the P-state selection based on the PID controller in intel_pstate can be replaced with the P-state selection based on CPU load with no considerable regressions *and* the PID-based P-state selection is generally flaky and hard to manage, make intel_pstate use the P-state selection based on CPU load for all categories of systems and eliminate the PID controller along with all things related to it from the driver.
[1/2] is the actual elimination. [2/2] is a simplification possible after [1/2]. Thanks, Rafael
