Rust Performance Best Practices

Expert-level performance optimization guide for Rust. Contains 45+ rules across 9 categories with real benchmarks, failure modes, and profiling workflows.

When to Apply

Reference these guidelines when:

• Investigating slow Rust programs or high latency
• Optimizing build times or binary size
• Reviewing allocation-heavy code
• Debugging lock contention or thread scaling issues
• Setting up release profiles for production
• Working with async runtimes (Tokio, async-std)

When NOT to Apply

Skip these optimizations when: