[Bug 219213] powerd causing problems with ryzen

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=219213

            Bug ID: 219213
           Summary: powerd causing problems with ryzen
           Product: Base System
           Version: 11.0-STABLE
          Hardware: amd64
                OS: Any
            Status: New
          Severity: Affects Many People
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: shitman71 at hotmail.com

I use FreeBSD 11.0 with an Ryzen R7 1700X Processor since March, the first
thing i recognised switching over to Ryzen was significantly improved
performance compared to my Phenom X6 1100T. The Power-Consumption has become
very low.

I struggled a lot of Problems within wine, having very low performance even
with Ryzen. Last week i decided to overclock my cpu, the overclocking turned
off all the power-saving-features and the first thing i recognised was that my
performance was many times higher then before. My computer usually crashed
several times a day, rarely i could run my computer 2 days without having to
restart because of the machine completely freezing. Since overclocking it my
machine keeps running, no problems anymore.

I did also constantly getting error-messages from powerd within my output, they
are gone now. I already thought this might be causing the freezes but i didnt
think this is also powering my machine at its lowest p-state.

Ryzen-Support should be added and more control over power-saving features to
avoid performance holes.

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