Google have a special approach to o11y and to RPC, so this might not be directly applicable. OTOH this is an incredible engineering feat, even ignoring the scale at which they present. https://hachyderm.io/@ruidlopes/109587653665864909 Speed is a critical feature we invest a lot of effort in Google Search. A few friends in Search Infra just published an in-depth article in the Communications of the ACM journal on how we do #latency #profiling of our serving stack titled "Distributed Latency Profiling through Critical Path Tracing". Enjoy the reading at https://m-cacm.acm.org/magazines/2023/1/267978-distributed-latency-profiling-through-critical-path-tracing/fulltext https://hachyderm.io/@ruidlopes/109587653665864909