Tag

allocator

2 posts

SystemsGuide

Writing a Custom Global Allocator in Rust to Track Memory

A global allocator is a type implementing GlobalAlloc, registered with one attribute. Wrapping the system allocator with atomic counters gives you live memory numbers.

19 min read

Systems

Allocators in Rust Jemalloc Mimalloc and the System One

Swap the global allocator with one line. Compare the system allocator, jemalloc, mimalloc and snmalloc on fragmentation, thread scaling, memory return and portability, and measure before switching.

3 min read