High‑Performance Rust: How to Identify and Remove Memory Fragmentation

A technical article explores memory fragmentation in Rust programs that require high performance. It describes how fragmentation can degrade allocation efficiency and increase latency. The author outlines methods to profile memory usage and locate fragmented regions. Strategies such as using arena allocators and pre‑allocating buffers are presented. Code examples demonstrate how to replace default allocators with custom ones. The piece also discusses trade‑offs between safety and raw speed. Readers are guided on measuring the impact of fragmentation before and after changes. The article is published on kerkour.com for developers seeking Rust performance optimizations.