Re: stable: commit "cpuidle: menu: Avoid discarding useful information" causes regressions

[Christian Loehle]

On 10/14/25 11:23, Sergey Senozhatsky wrote:
> On (25/10/14 10:50), Christian Loehle wrote:
>>> Upstream fixup fa3fa55de0d ("cpuidle: governors: menu: Avoid using
>>> invalid recent intervals data") doesn't address the problems we are
>>> observing.  Revert seems to be bringing performance metrics back to
>>> pre-regression levels.
>>
>> Any details would be much appreciated.
>> How do the idle state usages differ with and without
>> "cpuidle: menu: Avoid discarding useful information"?
>> What do the idle states look like in your platform?
> 
> Sure, I can run tests.  How do I get the numbers/stats
> that you are asking for?

Ideally just dump
cat /sys/devices/system/cpu/cpu*/cpuidle/state*/*
before and after the test.