/*
playback timings (ms):
  captures_list: 0.712
  exclusion.robots: 0.023
  exclusion.robots.policy: 0.01
  esindex: 0.012
  cdx.remote: 6.702
  LoadShardBlock: 355.237 (3)
  PetaboxLoader3.datanode: 154.941 (5)
  PetaboxLoader3.resolve: 375.175 (3)
  load_resource: 232.081 (2)
*/