Hi!
> > there are notebooks which change the CPU speed and voltage (and the TSC
> > speed as well), depending on the load. This is a much bigger problem.
>
> Current x86 notebooks dont change the TSC speed. They change the clock duty
> cycle not the clock rate.
That is not true!
I have two different notebooks (toshiba satellite 4030cdt and ibm
thinkpad), both of them change tsc speed (log from toshiba:)
Mar 29 23:35:22 bug apmd[72]: Now using Battery Power
Mar 29 23:35:22 bug apmd[72]: Battery: * * * (100% 2:22)
Mar 29 23:40:06 bug kernel: TSC is slower than it should be! Detected
151955503 Hz processor.
Mar 29 23:40:07 bug kernel: TSC is faster than it should be! Detected
299947489 Hz processor.
Pavel
-- I'm pavel@ucw.cz. "In my country we have almost anarchy and I don't care." Panos Katsaloulis describing me w.r.t. patents me at discuss@linmodems.org- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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