https://www.youtube.com/watch?v=I_TtMk5z0O0&ab_channel=JaneStreet

Perf investigation

  1. Plot your latency histograms!
  2. Stop using a virtual machine, moving to bare metal
  3. Tracing to recognise control flow transfer
  4. Find why cpu is getting interrupted
  5. Notice microarchitecture issues, speculative execution issues