mimalloc

mimalloc
Original author(s)	Daan Leijen /; Microsoft Research
Developer(s)	Microsoft
Initial release	July 2019; 2 years ago
Stable release	v1.7.3 / November 15, 2021; 49 days ago
Preview release	v2.0.3 / November 15, 2021; 49 days ago
Repository	github.com/microsoft/mimalloc
Written in	C
Operating system	Windows, FreeBSD, NetBSD, DragonFly BSD, macOS, Linux
Type	Software library
License	MIT License
Website	microsoft.github.io/mimalloc/

mimalloc (pronounced "me-malloc") is a free and open-source compact general-purpose memory allocator developed by Microsoft^[1] 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^[2] and requires no additional code changes.^[3] mimalloc was initially developed for the run-time systems of the Lean and languages. Notable design aspects include free list sharding, eager page reset, 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.^[4] The source code is licensed under MIT License and available on GitHub.^[5]

References[]

^ "Maruf Ali: Investigation of Memory Allocators" (PDF).
^ "Microsoft releases optimized malloc() as open source - Slashdot". slashdot.org.
^ "Analysis of mimalloc". Develop Paper. September 11, 2019.
^ "Google Translate". translate.google.com.
^ "microsoft/mimalloc". July 5, 2020 – via GitHub.

External links[]

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[1] "Maruf Ali: Investigation of Memory Allocators" (PDF).

[2] "Microsoft releases optimized malloc() as open source - Slashdot". slashdot.org.

[3] "Analysis of mimalloc". Develop Paper. September 11, 2019.

[4] "Google Translate". translate.google.com.

[5] "microsoft/mimalloc". July 5, 2020 – via GitHub.

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v t Memory management
Memory management as a function of an operating system
Manual memory management	Static memory allocation C dynamic memory allocation new and delete (C++)
Virtual memory	Demand paging Page table Paging Virtual memory compression
Memory allocators	dlmalloc Hoard malloc jemalloc mimalloc ptmalloc
Hardware	Memory management unit (MMU) Translation lookaside buffer (TLB) Input–output memory management unit (IOMMU)
Garbage collection	Boehm garbage collector Concurrent mark sweep collector Finalizer Garbage Garbage-first collector Mark-compact algorithm Reference counting Tracing garbage collection Strong reference Weak reference
Memory segmentation	Protected mode Real mode Virtual 8086 mode x86 memory segmentation
Memory safety	Buffer overflow Buffer over-read Dangling pointer Stack overflow
Issues	Fragmentation Memory leak Unreachable memory
Other	Automatic variable International Symposium on Memory Management Region-based memory management

mimalloc

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Original author(s)	Daan Leijen / Microsoft Research
Developer(s)	Microsoft
Initial release	July 2019; 2 years ago (2019-07)

Stable release	v1.7.3 / November 15, 2021; 49 days ago (2021-11-15)
Preview release	v2.0.3 / November 15, 2021; 49 days ago (2021-11-15)

Repository	github.com/microsoft/mimalloc
Written in	C
Operating system	Windows, FreeBSD, NetBSD, DragonFly BSD, macOS, Linux
Type	Software library
License	MIT License
Website	microsoft.github.io/mimalloc/