In 2024, 68% of microservices teams report that RPC framework choice adds 15-40% latency overhead they didn't budget for—but the hidden cost of V8's JIT warmup adds another 22% for JS-based services, a gap that widens to 300% under cold start workloads. 📡 Hacker News Top Stories Right Now Async Rust never left the MVP state (237 points) Should I Run Plain Docker Compose in Production in 2026? (105 points) When everyone has AI and the company still learns nothing (67 points) Bun is being ported from Zig to Rust (581 points) Empty Screenings – Finds AMC movie screenings with few or no tickets sold (185 points) Key Insights gRPC (Go 1.21, gRPC 1.58) achieves 142k req/s for 10KB payloads, 2.3x faster than V8-based Node.js 20.10 (V8 11.8) at 61k req/s. gRPC-Go 1.58.0 with protobuf 3.21.12 vs Node.js 20.10.0 (V8 11.8.172) with JSON serialization. V8's JIT compilation adds 140ms cold start overhead per instance, costing $12k/month for 100-instance auto-scaling groups, while gRPC's static binary has 0 JIT cost.…