alt Hacker NewsIf there is so much performance difference among generic allocators, it means you need semantic optimized allocators (unless performance is actually not that much important in the end).
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codexon • today at 9:17 PM
Agreed mostly. Going from standard library to something like jemalloc or tcmalloc will give you around 5-10% wins which can be significant, but the difference between those generic allocators seem small. I just made a slab allocator recently for a custom data type and got speedups of 100% over malloc.
You are not wrong and this is indeed what zig is trying to push by making all std functions that allocate take a allocator parameter.