Crate mimalloc

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A drop-in global allocator wrapper around the mimalloc allocator. Mimalloc is a general purpose, performance oriented allocator built by Microsoft.


use mimalloc::MiMalloc;

static GLOBAL: MiMalloc = MiMalloc;

§Usage with secure mode

Using secure mode adds guard pages, randomized allocation, encrypted free lists, etc. The performance penalty is usually around 10% according to mimalloc’s own benchmarks.

To enable secure mode, put in Cargo.toml:

mimalloc = { version = "*", features = ["secure"] }


  • Drop-in mimalloc global allocator.