Provided by: libsdl3-doc_3.2.8+ds-1_all 

NAME
SDL_GetPerformanceCounter - Get the current value of the high resolution counter.
HEADER FILE
Defined in SDL3/SDL_timer.h
SYNOPSIS
#include "SDL3/SDL.h" Uint64 SDL_GetPerformanceCounter(void);
DESCRIPTION
This function is typically used for profiling. The counter values are only meaningful relative to each other. Differences between values can be converted to times by using SDL_GetPerformanceFrequency ().
RETURN VALUE
( Uint64 ) Returns the current counter value.
THREAD SAFETY
It is safe to call this function from any thread.
AVAILABILITY
This function is available since SDL 3.2.0.
SEE ALSO
•(3), SDL_GetPerformanceFrequency(3) Simple Directmedia Layer SDL 3.2.8 SDL_GetPerformanceCounter(3)