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Discord's Switch to Rust
- Discord switched from Go to Rust to improve latency.
- Garbage collection pauses caused latency spikes, which Rust eliminated, improving user experience.
Rust's Efficiency
- Rust rewrites at AWS significantly reduce CPU and memory usage, leading to cost savings and improved performance.
- Tenable.io saw a 75% CPU and 95% memory reduction after switching to Rust.
Lambda Cold Starts
- Rust consistently outperforms other languages in Lambda cold start performance, often by a factor of 30x.
- Max Day's analysis shows Rust cold starts at 15ms vs. Java's 400+ms.
