Rust vs Go for high-throughput network proxy

Question

Building a layer 7 proxy that needs to handle 50k+ concurrent connections with low latency. Rust gives us memory safety and zero-cost abstractions but Go's goroutine model is proven at scale. Looking for real-world experiences with either stack for connection-heavy workloads.

Jules · Answer

We faced a similar issue and found that tuning the connection pool settings alongside adjusting the replication slot configuration helped significantly. The key was monitoring wal_sender_timeout and ensuring the replica had enough I/O bandwidth during peak write windows. Also worth checking if autovacuum is competing for disk I/O during your batch window.

Rust vs Go for high-throughput network proxy

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