Re: powerd forgets top CPU frequency ?

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Ronald Klop writes:

> A bit weird to try to give suggestions knowing how experienced you are in FreeBSD. But here we go,

I'm not very experienced with how modern CPU's are modulated :-)

> 1. What does the sysctl about cpu frequencies say. Does that value decrease too?
> On my machine it is this:
> # sysctl dev.cpu  | grep freq
> dev.cpu.0.freq_levels: 1500/-1 600/-1
> dev.cpu.0.freq: 1500

Right now:
	dev.cpu.7.freq_levels: 2803/-1
	dev.cpu.7.freq: 3103
	dev.cpu.5.freq_levels: 2803/-1
	dev.cpu.5.freq: 3103
	dev.cpu.3.freq_levels: 2803/-1
	dev.cpu.3.freq: 3103
	dev.cpu.1.freq_levels: 2803/-1
	dev.cpu.1.freq: 3103
	dev.cpu.6.freq_levels: 2803/-1
	dev.cpu.6.freq: 3103
	dev.cpu.4.freq_levels: 2803/-1
	dev.cpu.4.freq: 3103
	dev.cpu.2.freq_levels: 2803/-1
	dev.cpu.2.freq: 3103
	dev.cpu.0.freq_levels: 2803/-1
	dev.cpu.0.freq: 3103

> 2. Does https://www.freshports.org/sysutils/powerdxx/ exhibit the same issue? To rule out if it is in the binary or in the kernel.

Will try.

> 3. out-of-the-box: are your CPUs similar? So, do both have the same top frequency?

Yes, it's a: 11th Gen Intel(R) Core(TM) i7-1165G7 @ 2.80GHz

> 4. And powerd(8) mentions a -v option: "Verbose mode.  Messages about power changes will be printed to stdout and powerd will operate in the foreground."
> Does that print anything useful?

Yes, that's where I noticed the "gradually run slower and slower"...

Initially I thought it was some kind of thermal throttling, but leaving the computer
idle overnight did not lead to automatic recovery, whereas reboots and as far as I
can tell, restarting powerd does.

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