Overview
Benchmarks gRPC streaming vs WebSocket connections for real-time data pipelines in Rust. Tests message throughput, connection overhead, and tail latency under varying payload sizes.
Results (10K messages, 256B payload)
| Protocol | RPS | p99 latency | Connections | |---|---|---|---| | gRPC unary | 45K | 3.2ms | 1 per call | | gRPC streaming | 210K | 1.8ms | 1 persistent | | WebSocket | 180K | 2.1ms | 1 persistent |
Key Insight
gRPC streaming wins on throughput due to HTTP/2 multiplexing, but WebSockets are simpler to implement and debug. For browser clients, WebSockets remain the pragmatic choice.