/*
playback timings (ms):
  CDXLines.iter: 18.478 (3)
  exclusion.robots: 0.209
  esindex: 0.012
  captures_list: 63.397
  PetaboxLoader3.datanode: 76.809 (5)
  load_resource: 288.66
  exclusion.robots.policy: 0.194
  PetaboxLoader3.resolve: 213.043 (2)
  RedisCDXSource: 5.661
  LoadShardBlock: 34.999 (3)
*/