Architecture Development Notes

Sep 12, 2024 · Fundamentals

Boost Rust Performance with Clone‑On‑Write (COW): When and How to Use It

This article explains Rust's Clone‑On‑Write (COW) feature, showing how it reduces unnecessary memory allocations, detailing its internal enum variants, typical use cases, performance benefits, limitations, and providing practical code examples for function return values and string concatenation.