Date: Wed, 2 Jan 2019 21:57:56 +0800 From: Erich Dollansky <freebsd.ed.lists@sumeritec.com> To: Andrea Venturoli <ml@netfence.it> Cc: freebsd-questions@freebsd.org Subject: Re: [SOLVED] Re: now on Ryzen performance Message-ID: <20190102215756.15ab731c.freebsd.ed.lists@sumeritec.com> In-Reply-To: <2b6e1a69-28fa-dd6a-f691-a3347aac8ae3@netfence.it> References: <42a7a149-fa6b-390f-eb13-e10b437baaf7@netfence.it> <20181204122348.131f9471.freebsd.ed.lists@sumeritec.com> <3cef02cc-fc6a-4570-c374-6f8c8ee3d192@netfence.it> <20181204192129.622c8779.freebsd.ed.lists@sumeritec.com> <2c474b0c-46c3-72dd-ca1f-02edbec41673@netfence.it> <accb4fc5-b23e-1a5e-f237-ba2ff6aba715@netfence.it> <2b6e1a69-28fa-dd6a-f691-a3347aac8ae3@netfence.it>
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Hi, 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? Erich On Thu, 27 Dec 2018 09:18:20 +0100 Andrea Venturoli <ml@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 > av. > _______________________________________________ > freebsd-questions@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org"
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