Re: Time measurement using RDTSC instruction

Leo Havmøller

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11-03-2009

"jslim" <> wrote in message
news:38a697b0-0905-40c9-b522-...
> Hi all,
> I implemented my own device driver which generates software interrupt
> ( INT n).
> And I want to measure the execution time of my interrupt service
> routine.
> The execution time is too small to measure using nornal time function.

Use KeQueryPerformanceCounter:
http://msdn.microsoft.com/en-us/library/ms801657.aspx

Leo Havmøller.

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