LSB1.1: /proc/cpuinfo

H. Peter Anvin hpa at
Mon Jan 7 09:26:50 PST 2002

Alan Cox wrote:

> Fine. But that is their problem 8). VIA already has documentation for
> how to check the speed of a CPU. Intel seem to have NDA'd theirs but I'm
> sure they can provide that algorithm easily enough.

If with "speed" you mean "frequency" it's trivial to measure using RDTSC.
 This measurement can be done in userspace, and is also exported by the
kernel into /proc/cpuinfo.


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