memmap2

June 24, 2026 ยท View on GitHub

Build Status crates.io Documentation MSRV 1.65.0

A Rust library for cross-platform memory mapped IO.

This is a fork of the memmap crate.

Features

  • file-backed memory maps
  • anonymous memory maps
  • synchronous and asynchronous flushing
  • copy-on-write memory maps
  • read-only memory maps
  • stack support (MAP_STACK on Unix)
  • executable memory maps
  • huge page support (Linux only)

A list of supported/tested targets can be found in Actions.

License

memmap2 is primarily distributed under the terms of both the MIT license and the Apache License (Version 2.0).

See LICENSE-APACHE, LICENSE-MIT for details.

Copyright (c) 2020 Yevhenii Reizner

Copyright (c) 2015 Dan Burkert