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(This is the documentation for SDL3, which is under heavy development and the API is changing! SDL2 is the current stable version!)


Determine the L1 cache line size of the CPU.


int SDL_GetCPUCacheLineSize(void);

Return Value

Returns the L1 cache line size of the CPU, in bytes.


This is useful for determining multi-threaded structure padding or SIMD prefetch sizes.


This function is available since SDL 3.0.0.

CategoryAPI, CategoryCPU

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