=== bottle-0001: Route.all_plugins() — skiplist is a list, scanned 4× per plugin iteration ===
N=100   k=100  : defective=0.103ms  fixed=0.004ms  speedup=25.0x
N=500   k=500  : defective=2.865ms  fixed=0.098ms  speedup=29.3x
N=1000  k=1000 : defective=11.460ms  fixed=0.098ms  speedup=117.2x
N=2000  k=2000 : defective=41.618ms  fixed=0.101ms  speedup=412.5x

