mimalloc

工具介绍

mimalloc是一个紧凑的通用分配器,性能优异.

核心特点

• •__small and consistent__: the library is about 10k LOC using simple and
• •__free list sharding__: instead of one big free list (per size class) we have
• •__free list multi-sharding__: the big idea! Not only do we shard the free list
• •__eager page purging__: when a "page" becomes empty (with increased chance
• •__secure__: _mimalloc_ can be built in secure mode, adding guard pages,
• •__first-class heaps__: efficiently create and use multiple heaps to allocate across different regions.
• •__bounded__: it does not suffer from _blowup_ \[1\], has bounded worst-case allocation
• •__fast__: In our benchmarks (see below),
• •__v3__: recommended: simplifies the lock-free design of previous versions and improves sharing of
• •__v2__: stable legacy mimalloc version. Uses thread-local segments to reduce fragmentation. (release tags: v2.x, development branch dev2 and main)