Date: Sun, 25 Aug 2024 12:01:46 -0500 From: "Matthew D. Fuller" <fullermd@over-yonder.net> To: Ronald Klop <ronald-lists@klop.ws> Cc: Poul-Henning Kamp <phk@phk.freebsd.dk>, Bob Bishop <rb@gid.co.uk>, "current@freebsd.org" <current@freebsd.org> Subject: Re: powerd forgets top CPU frequency ? Message-ID: <ZstjelIgKwlE-wXd@over-yonder.net> In-Reply-To: <1273956903.13647.1724575094919@localhost> References: <202408241706.47OH6LfG023651@critter.freebsd.dk> <AEEBC43B-71F5-4974-87CB-3B05F096B07A@gid.co.uk> <202408250513.47P5DDZF029200@critter.freebsd.dk> <1264471055.10452.1724573369940@localhost> <202408250829.47P8TawP031885@critter.freebsd.dk> <1273956903.13647.1724575094919@localhost>
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On Sun, Aug 25, 2024 at 10:38:14AM +0200 I heard the voice of Ronald Klop, and lo! it spake thus: > > This is interesting by itself. According to the sysctl the CPU only > has 1 frequency to select, which is 2803, but it is running on 3103. > Maybe there is some other mechanism which influences the CPU freq on > your machine. I hope somebody else can shine some light on this. This seems fairly common on more recent Intel stuff. On some systems (without powerd running, since it apparently doesn't do anything useful in such cases); dev.cpu.0.freq_levels: 3500/-1 dev.cpu.0.freq: 1801 dev.cpu.7.freq_levels: 3500/-1 dev.cpu.7.freq: 799 Xeon E3 v5 (Skylake) dev.cpu.0.freq_levels: 3500/-1 dev.cpu.0.freq: 900 dev.cpu.1.freq_levels: 3500/-1 dev.cpu.1.freq: 799 Xeon E-21xx (Coffee Lake) Seems to just all be done by the hardware. -- Matthew Fuller (MF4839) | fullermd@over-yonder.net Systems/Network Administrator | http://www.over-yonder.net/~fullermd/ On the Internet, nobody can hear you scream.
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