Re: CPU frequency shifting "problems"

From: Stefan Smietanowski (stesmi@stesmi.com)
Date: Thu Sep 27 2001 - 21:12:09 EST


Hey.

>>For example, the Intel "SpeedStep" CPU's are completely broken under
>>Linux, and real-time will advance at different speeds in DC and AC modes,
>>because Intel actually changes the frequency of the TSC _and_ they don't
>>document how to figure out that it changed.
>
> The change is APM or ACPI initiated. Intel won't tell anyone anything
> useful but Microsoft have published some of the required intel confidential
> information which helps a bit

Did you just say that Microsoft actually went and did something right
for a change? As in publishing specs I mean.

*Stands in awe*

:)

// Stefan

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Sun Sep 30 2001 - 21:00:59 EST