Date: Fri, 19 Mar 2021 20:07:36 +0100 From: =?utf-8?Q?Klaus_K=C3=BCchemann?= <maciphone2@googlemail.com> To: bob prohaska <fbsd@www.zefox.net>, freebsd-arm@freebsd.org Subject: Re: RPI4 clock speeds and serial port ( temperatures idle and -j4 buildworld buildkernel ) Message-ID: <FA5A110A-4E7A-4381-BBE5-9B3022CA9008@googlemail.com> In-Reply-To: <20210319174359.GA38899@www.zefox.net> 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>
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> Am 19.03.2021 um 18:43 schrieb bob prohaska <fbsd@www.zefox.net>: >=20 >=20 > 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 =E2=80=9Apowerd=E2=80=98 = in rc.conf for automatically=20 scaling from idle 600 to max. 1500 (non overclocked). So, when you hit make -j4 xyz, you will see all cpus running @~100% and=20= Powerd will then automatically set the clock speed to 1500 on all 4.=20 K.=
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