- WAL-RUS is a Rust-based tool for Postgres backup and WAL archival, designed for predictable memory-efficiency and compatibility with WAL-G.
- WAL-G's Go-based implementation leads to unpredictable memory usage due to garbage collection, making resource planning difficult.
- WAL-RUS reduces peak virtual memory by over 70% compared to WAL-G, maintaining stable resource usage and efficient throughput.
- It maintains persistent connections for continuous WAL archival, optimizing for streaming workloads and minimizing buffering.
- Full compatibility with WAL-G archives and configuration allows straightforward migration for existing deployments.