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From: Peter Dimov (pdimov_at_[hidden])
Date: 2006-05-15 15:09:43

Silex wrote:
>> The problem with QueryPerformanceCounter is that
>> QueryPerformanceFrequency is not (AFAIK) required to return the same
>> value every time. It may be CPU clock based, and a low power CPU can
>> vary its frequency depending on load.
> No, "the frequency cannot change while the system is running."
> (

You are right, a variable frequency is explicitly disallowed in the
documentation now. Most chipset bugs that affected QPC also don't seem to be
an issue nowadays.

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