A bit of a tangent, but have you looked at musl libc's malloc? It's way simpler, primarily because it doesn't use per-thread heaps, yet its author claims that i

A bit of a tangent, but have you looked at musl libc's malloc? It's way simpler, primarily because it doesn't use per-thread heaps, yet its author claims that it's competitive with jemalloc on performance. I'm inclined to favor the simpler malloc.