=== tokio-0001: AnyDelimiterCodec seek_delimiters Vec<u8>::contains() O(N×D) per frame decode ===
N=100   k=100  : defective=0.093ms  fixed=0.004ms  speedup=24.2x
N=500   k=500  : defective=2.423ms  fixed=0.023ms  speedup=104.0x
N=1000  k=1000 : defective=9.948ms  fixed=0.051ms  speedup=196.8x
N=2000  k=2000 : defective=37.121ms  fixed=0.192ms  speedup=193.7x

