CPU throttling

James Van Artsdalen james-freebsd-amd64 at jrv.org
Wed Jan 14 13:41:20 PST 2004

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Is CPU throttling possible with AMD64?

$ sysctl -a | grep hw.acpi.cpu
hw.acpi.cpu.max_speed: 8
hw.acpi.cpu.current_speed: 8
hw.acpi.cpu.performance_speed: 8
hw.acpi.cpu.economy_speed: 4
hw.acpi.cpu.cx_supported: C1/0
hw.acpi.cpu.cx_lowest: 0
hw.acpi.cpu.cx_history: 59641109/0
$ sysctl hw.acpi.cpu.current_speed=4
sysctl: oid 'hw.acpi.cpu.current_speed' is read only
$

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