/*
playback timings (ms):
  captures_list: 160.334
  exclusion.robots: 0.089
  exclusion.robots.policy: 0.081
  cdx.remote: 0.072
  esindex: 0.009
  LoadShardBlock: 117.429 (3)
  PetaboxLoader3.datanode: 128.274 (5)
  CDXLines.iter: 15.419 (3)
  load_resource: 379.182 (2)
  PetaboxLoader3.resolve: 333.512 (2)
*/