[SOLVED] Re: now on Ryzen performance
freebsd.ed.lists at sumeritec.com
Wed Jan 2 14:15:00 UTC 2019
I took a look at the sources of powerd. I did not see any thing I would
suspect to be the cause of the slowdown. All powerd does on my machine
is adjusting the CPU frequency. Mu Ryzen has only three possible
frequencies. What I do not understand, why is powerd requesting a
frequency change to a value not possible?
Powerd itself hardly consumes CPU. Has a system call a problem or gets
the CPU so much irritated when an illegal frequency is requested?
On Thu, 27 Dec 2018 09:18:20
+0100 Andrea Venturoli <ml at netfence.it> wrote:
> On 12/21/18 5:40 PM, Andrea Venturoli wrote:
> > Having powerd running or not does not make any difference.
> After further investigation/testing, powerd is the culprit.
> Earlier I tried stopping it and I confirm it makes no difference; now
> I realize just starting it bring the CPU down by a factor of 50%
> until rebooting.
> After disabling it in /etc/rc.conf my machine is behaving properly.
> I'll try enabling it again when I'll upgrade to 12 (although that
> might happen not so soon).
> bye & Thanks
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