Programming Tutorials

  The Optimization Wall In the lifecycle of every high-scale backend system, you hit the "Go Ceiling." You chose Go for its developer velocity, CSP-style concurrency, and the "boring" simplicity that allows new hires to ship code on day one. It worked perfectly—until you hit 500k concurrent WebSocket connections or started ingesting telemetry data at 50GB/hour. Now, your P99 latency is erratic. You are throwing hardware at the problem, but CPU utilization spikes unpredictably. Profiling reveals the culprit isn't your business logic; it's the Go Runtime. Specifically, the Garbage Collector (GC) trying to manage a massive heap of short-lived objects. You are faced with a binary choice: rewrite the entire service in Rust (stalling product development for months) or accept the latency/cost inefficiency. There is a third option:  Hybrid Architecture.  By offloading specifically the high-churn memory operations to Rust via Foreign Function Interface (FFI), you can...