Mimalloc

mimalloc
Original authorsDaan Leijen /
Microsoft Research
DeveloperMicrosoft
Initial releaseJuly 2019; 6 years ago (2019-07)
Stable release
3.3.2[1] Edit this on Wikidata / 15 January 2026, and
3.2.7 release candidate 2 / 15 January 2026
Written inC
Operating systemWindows, FreeBSD, NetBSD, DragonFly BSD, macOS, Linux
TypeSoftware library
LicenseMIT License
Websitemicrosoft.github.io/mimalloc/
Repositorygithub.com/microsoft/mimalloc

mimalloc (pronounced "me-malloc") is a free and open-source compact general-purpose memory allocator developed by Microsoft[2] with focus on performance characteristics. The library is about 11000 lines of code and works as a drop-in replacement for malloc of the C standard library[3] and requires no additional code changes.[4] mimalloc was initially developed for the run-time systems of the Lean and Koka languages. Notable design aspects include free list sharding, eager page reset, and first-class heaps. It can co-exist with other memory allocators linked to the same program. mimalloc is available on Windows, Mac OS X, Linux and *BSD.[5] The source code is licensed under MIT License and available on GitHub.[6]

See also

References

  1. ^ "Release 3.3.2". 29 April 2026. Retrieved 30 April 2026.
  2. ^ "Maruf Ali: Investigation of Memory Allocators" (PDF). Archived (PDF) from the original on 2020-07-06. Retrieved 2020-07-04.
  3. ^ "Microsoft releases optimized malloc() as open source - Slashdot". slashdot.org. Archived from the original on 2023-06-14. Retrieved 2020-07-04.
  4. ^ "Analysis of mimalloc". Develop Paper. September 11, 2019. Archived from the original on July 23, 2022. Retrieved July 4, 2020.
  5. ^ "Google Translate". translate.google.com. 25 June 2019.
  6. ^ "microsoft/mimalloc". July 5, 2020. Archived from the original on July 7, 2020. Retrieved July 4, 2020 – via GitHub.

Further reading

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