#include <stdio.h>
#include <windows.h>

int main( void )
{
	size_t i;
	double dProcessorFrequency = 2829200000.0L;

	double dTscCC = ( double )(          1.0L );
	double dTscNS = ( double )( 1000000000.0L / ( double )dProcessorFrequency );
	double dTscMU = ( double )(    1000000.0L / ( double )dProcessorFrequency );
	double dTscMS = ( double )(       1000.0L / ( double )dProcessorFrequency );

	printf( "RDTSC instruction latency:\n" );
	unsigned __int64 iClocks1 = __rdtsc();
	unsigned __int64 iClocks2 = __rdtsc();
	printf( "\tClock cycles  (cc): %20.7f\n", ( double )( iClocks2 - iClocks1 ) * dTscCC );
	printf( "\tNano  seconds (ns): %20.7f\n", ( double )( iClocks2 - iClocks1 ) * dTscNS );
	printf( "\tMicro seconds (mu): %20.7f\n", ( double )( iClocks2 - iClocks1 ) * dTscMU );
	printf( "\tMilli seconds (ms): %20.7f\n", ( double )( iClocks2 - iClocks1 ) * dTscMS );
	printf( "\n" );

	printf( "Sleep Win32 API function Non Determinism:\n" );
	for( i = 0; i < 30; i += 1 )
	{
		unsigned __int64 iClocks1 = __rdtsc();
		Sleep( 1000 );
		unsigned __int64 iClocks2 = __rdtsc();
	//	printf( "\tClock cycles  (cc): %20.7f\n", ( double )( iClocks2 - iClocks1 ) * dTscCC );
	//	printf( "\tNano  seconds (ns): %20.7f\n", ( double )( iClocks2 - iClocks1 ) * dTscNS );
	//	printf( "\tMicro seconds (mu): %20.7f\n", ( double )( iClocks2 - iClocks1 ) * dTscMU );
		printf( "\tMilli seconds (ms): %20.7f\n", ( double )( iClocks2 - iClocks1 ) * dTscMS );
	}
}