On 10-Dec-2003 Nate Lawson wrote: > I'm working on a shared CPU frequency control driver. One step is to > remove some of the autonomy of the throttling portion of acpi_cpu. > Please test this patch if you have a machine which supports throttling. > With this patch, throttling can be changed by doing: > > sysctl hw.acpi.cpu.current_speed=X > > where X is some number between 1 and hw.acpi.cpu.max_speed. It is no > longer driven by AC line transitions. Run a CPU benchmark like this one > to make sure the throttling transition still works with this patch. > > dd if=/dev/zero bs=1m count=500 | md5 > > This is part of a larger work. Don't worry, it won't be committed until > general CPU frequency control is done so no loss of functionality will be > committed. We need to support using throttling for passive cooling btw. My new laptop I just got has no active cooling support, but does have _TC1 and _TC2 objects in its thermal zone. Are you going to add that? -- John Baldwin <jhb_at_FreeBSD.org> <>< http://www.FreeBSD.org/~jhb/ "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/Received on Wed Dec 10 2003 - 07:44:10 UTC
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