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https://github.com/reactos/reactos.git
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37 lines
891 B
C
37 lines
891 B
C
#include <stdio.h>
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#include <conio.h>
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#include <windows.h>
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void main ( int argc, char** argv, char** environ )
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{
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LARGE_INTEGER liFrequency;
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LARGE_INTEGER liStartTime;
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LARGE_INTEGER liCurrentTime;
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QueryPerformanceFrequency ( &liFrequency );
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printf ( "HIGH RESOLUTION PERFOMANCE COUNTER Frequency = %I64d CLOCKS IN SECOND\n",
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liFrequency.QuadPart );
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if (liFrequency.QuadPart == 0)
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{
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printf("Your computer does not support High Resolution Performance counter\n");
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return;
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}
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printf ( "Press <ENTER> to start test...\n" );
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getchar();
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printf ( "\nPress any key to quit test\n\n" );
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QueryPerformanceCounter ( &liStartTime );
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for (;;)
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{
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QueryPerformanceCounter ( &liCurrentTime );
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printf("Elapsed Time : %8.6f mSec\r",
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((double)( (liCurrentTime.QuadPart - liStartTime.QuadPart)* (double)1000.0/(double)liFrequency.QuadPart )) );
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if (_kbhit())
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break;
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}
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} |