System jitter
20 Nov 2024
https://www.youtube.com/watch?v=I_TtMk5z0O0&ab_channel=JaneStreet
Perf investigation
- Plot your latency histograms!
- Stop using a virtual machine, moving to bare metal
- Tracing to recognise control flow transfer
- Find why cpu is getting interrupted
- Notice microarchitecture issues, speculative execution issues