QueryPerformanceCounter and GetTickCount functions , A Performance Tuning method

Title - QueryPerformanceCounter and GetTickCount  functions ,  A Performance Tuning method

Tip - QueryPerformanceCounter() / GetTickCount()  can be used to get the timing of  each function. Based on that we can tune the performance.

Details - The QueryPerformanceCounter Retrieves the current value of the high-resolution performance counter. But on a multiprocessor computer, it should not matter which processor is called. However, you can get different results on different processors due to bugs in the basic input/output system (BIOS) or the hardware abstraction layer (HAL). So in that case we can use GetTickCount functionality. But the precision of GetTickCount is limited to milliseconds.

  

Reference :

http://msdn.microsoft.com/en-us/library/ms644904%28v=VS.85%29.aspx

http://msdn.microsoft.com/en-us/library/ms724408%28VS.85%29.aspx

Posted By : Febil Chacko