Latency Profiling Deep Dive overview

Investigates end-to-end request latency anomalies through systematic profiling -- capturing distributed traces, analyzing per-service latency contributions, identifying slow database queries via explain plans, profiling serialization/deserialization overhead, measuring network round-trip times between services, correlating latency spikes with GC pauses or thread contention, generating flame graphs for critical code paths, and producing targeted optimization recommendations with expected latency improvements. Excludes load testing and performance budgeting.