timespec on windows compilers

Question

On posix it is possible to use timespec to calculate accurate time length (like seconds and milliseconds). Unfortunately I need to migrate to windows with Visual Studio compiler

Answer 1

Depends on what sort of accuracy you want, my understanding is that clock and time_t are not accurate to the millisecond level. Similarly GetTickCount() is commonly used (MS docs say accurate to 10-15ms) but not sufficiently accurate for many purposes.

I use QueryPerformanceFrequency and QueryPerformanceCounter for accurate timing measurements for performance.

Answer 2

The function GetTickCount is usually used for that.

Also a similiar thread: C++ timing, milliseconds since last whole second