Date: Fri, 19 Mar 2021 12:50:19 -0700 From: bob prohaska <fbsd@www.zefox.net> To: Klaus K??chemann <maciphone2@googlemail.com> Cc: freebsd-arm@freebsd.org Subject: Re: RPI4 clock speeds and serial port ( temperatures idle and -j4 buildworld buildkernel ) Message-ID: <20210319195019.GA39087@www.zefox.net> In-Reply-To: <FA5A110A-4E7A-4381-BBE5-9B3022CA9008@googlemail.com> References: <20210318170053.GA26688@www.zefox.net> <9FFA0A51-C0B7-4121-95CA-B98669809007@yahoo.com> <E4CF6642-CB70-4495-A865-05469953561C@yahoo.com> <EA6BE351-98F5-4446-BA4D-948F04EDFD3B@yahoo.com> <81AC0353-258C-41C3-86B1-C133E33D97E3@yahoo.com> <20210319174359.GA38899@www.zefox.net> <FA5A110A-4E7A-4381-BBE5-9B3022CA9008@googlemail.com>
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On Fri, Mar 19, 2021 at 08:07:36PM +0100, Klaus K??chemann wrote: > > > > Am 19.03.2021 um 18:43 schrieb bob prohaska <fbsd@www.zefox.net>: > > > > > > So my figures (~17 hours) seem reasonable for a default clocking. > > I thought maybe I'd done something wrong. > > > 17 hours sounds too long, you can simply enable ???powerd??? in rc.conf for automatically > scaling from idle 600 to max. 1500 (non overclocked). > So, when you hit make -j4 xyz, you will see all cpus running @~100% and > Powerd will then automatically set the clock speed to 1500 on all 4. > I've enabled powerd and rebooted, console messages report that powerd started with no explicit errors. A -j4 buildworld is running now. Should I expect to see powerd mess up the default mini-uart serial console? So far, it hasn't with top reporting less than 1% idle. That's confusing.... Thanks for writing! bob prohaska
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