Messages in this thread |  | | Subject | Re: CPU frequency shifting "problems" | Date | Fri, 28 Sep 2001 01:55:42 +0100 (BST) | From | Alan Cox <> |
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> 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 - 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/
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