Monday, November 8, 2010

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.
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Posted By : Febil Chacko

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