Advertised Freqency;

Advertised Freqency;

I have been able to get all the info from cpuid instruction.
But there is one thing that I have not been able to get.

The max advertised freqency.
I know that I can get it from brand string but that
is for procesors that support that feature.
I would like to be able to get this from a pentium or better.

How does Intel do it in there freqency test application?

Thank You
Bo Hunter

4 posts / 0 new
Last post
For more complete information about compiler optimizations, see our Optimization Notice.

We will forward your question to our Application Engineers and let you know how they respond.

Regards,

Lexi S.

IntelSoftware NetworkSupport

http://www.intel.com/software

Contact us

Message Edited by intel.software.network.support on 12-02-2005 01:13 PM

A common way of checking clock frequency is to measure the number of ticks returned by the __rdtsc() timer (supported by Intel and Microsoft C compilers) against the time of day counter. I don't know if the original question intentionally goes beyond that.

We checked with our engineering team, and they do not have any further information beyond what Tim has posted above, since this issue relates to very old processors. We are sorry we cannot help you further.

Regards,

Lexi S.

IntelSoftware NetworkSupport

http://www.intel.com/software

Contact us

Message Edited by intel.software.network.support on 12-01-2005 10:21 AM

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