====== (This is the documentation for SDL3, which is under heavy development and the API is changing! [https://wiki.libsdl.org/SDL2/ SDL2] is the current stable version!) ======
= SDL_GetCPUCacheLineSize =

Determine the L1 cache line size of the CPU.

== Syntax ==

<syntaxhighlight lang='c'>
int SDL_GetCPUCacheLineSize(void);
</syntaxhighlight>

== Return Value ==

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.

== Version ==

This function is available since SDL 3.0.0.

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[[CategoryAPI]], [[CategoryCPU]]