Date: Fri, 18 Nov 2022 16:50:53 -0500 From: mike tancsa <mike@sentex.net> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: RELENG_13 and min cpu frequency Message-ID: <a322c5b4-65bd-91b0-e7b5-32d36d46c2dd@sentex.net> In-Reply-To: <9d17ea30-4b10-2aa3-9d09-017da7423844@sentex.net> References: <9d17ea30-4b10-2aa3-9d09-017da7423844@sentex.net>
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On 11/18/2022 4:28 PM, mike tancsa wrote: > Whats the best way to set the box NOT to scale down the CPU below a > certain frequency ? I want to see if not letting it drop below 3000 > prevents packet overruns when there is a burst of traffic from a time > of things being quiet ? > > I tried with powerd e.g # powerd -v -m 3000 -a max -n max powerd: unable to determine AC line status now operating on unknown power; changing frequency to 3400 MHz now operating on unknown power; changing frequency to 3400 MHz now operating on unknown power; changing frequency to 3400 MHz now operating on unknown power; changing frequency to 3400 MHz now operating on unknown power; changing frequency to 3400 MHz now operating on unknown power; changing frequency to 3400 MHz now operating on unknown power; changing frequency to 3400 MHz now operating on unknown power; changing frequency to 3400 MHz now operating on unknown power; changing frequency to 3400 MHz yet checking the freq sysctl -a dev.cpu.0.freq dev.cpu.0.freq: 900 If I start up cat /dev/urandom | md5 then sysctl -a dev.cpu.0.freq dev.cpu.0.freq: 4308 powerd doesnt seem to work in this case
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