--------
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.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
p...@freebsd.org         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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