Bug#945055: great CPU temperature increase from 5.2 to 5.5 ... and when using intel_pstate

[Christoph Anton Mitterer <calestyo@scientia.net>]

I've made some further very extensive tests in the meantime, but these
were mostly for clearly GPU related stuff, i.e. the problem that the
temperatures go through the roof when playing back any video.
These were reported here:
https://gitlab.freedesktop.org/drm/intel/-/issues/953#note_463451

But I haven't made any plots/conclusions for that new set of tests, yet
(will keep this ticket updated once I've done).



As for the general (I mean even when doing non-graphics intensive stuff
like the unhide-brute or sha512 sum verify tests that I've described
above) extreme temperature increase since >5.2 that I see, ... what I
would try next is whether
mitigations=off changes anything (it didn't for video playback).


Also I found out about the nice features of perf record respectively
perf report.
I've played a bit with that already and the first "results" showed that
when I do anyting (like just typing at the keyboard, quickly moving
up/down in e.g. Evolutions mail list, or just Alt-Tab-ing between
windows, the number of events recorded there increases by
magnitudes(!!).


I'd be thankful for any guide in what to actually test to better nail
down that problem I see.

Thanks!