(This is the documentation for SDL3, which is the current stable version. SDL2 was the previous version!)

SDL_GetCPUCacheLineSize

Determine the L1 cache line size of the CPU.

Header File

Defined in <SDL3/SDL_cpuinfo.h>

Syntax

int SDL_GetCPUCacheLineSize(void);

Return Value

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

Remarks

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

Thread Safety

It is safe to call this function from any thread.

Version

This function is available since SDL 3.1.3.

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CategoryAPI, CategoryAPIFunction, CategoryCPUInfo

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