Really? With Google Bench or Criterion I've gotten pretty good resolution on microbenchmarks The gold standard (in my experience) for latency measurement is se

Really? With Google Bench or Criterion I've gotten pretty good resolution on microbenchmarks The gold standard (in my experience) for latency measurement is setting up a packet splitting, marking your outbound packets with some hash/id of the inbound packet, taking hardware timestamps of all these on some dedicated host, and putting it all together after the fact. Ultimately packet-in to packet out is all the matters anyways You can actually get pretty solid internal timestamps (how long did I take to fully process event X) with TSC counters, but you then have a coordinated omissions problem: https://www.programmingtalks.org/talk/how-not-to-measure-latency-by-gil-tene https://www.programmingtalks.org/talk/how-not-to-measure-lat...