=== bevy-0001: slab_allocator — O(E×L×S) Vec::iter().position() in free_empty_slabs() ===
N=100   k=100  : defective=0.093ms  fixed=0.004ms  speedup=24.5x
N=500   k=500  : defective=2.305ms  fixed=0.024ms  speedup=96.9x
N=1000  k=1000 : defective=9.419ms  fixed=0.050ms  speedup=188.7x
N=2000  k=2000 : defective=37.655ms  fixed=0.097ms  speedup=389.7x

