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Daan Leijen 2021-01-31 14:12:51 -08:00
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@ -12,7 +12,8 @@ is a general purpose allocator with excellent [performance](#performance) charac
Initially developed by Daan Leijen for the run-time systems of the Initially developed by Daan Leijen for the run-time systems of the
[Koka](https://koka-lang.github.io) and [Lean](https://github.com/leanprover/lean) languages. [Koka](https://koka-lang.github.io) and [Lean](https://github.com/leanprover/lean) languages.
Latest release tag: `v1.7.0` (2020-01-31). Latest release tag: `v2.0.0` (beta, 2021-01-31).
Latest stable tag: `v1.7.0` (2021-01-31).
mimalloc is a drop-in replacement for `malloc` and can be used in other programs mimalloc is a drop-in replacement for `malloc` and can be used in other programs
without code changes, for example, on dynamically linked ELF-based systems (Linux, BSD, etc.) you can use it as: without code changes, for example, on dynamically linked ELF-based systems (Linux, BSD, etc.) you can use it as:
@ -67,15 +68,20 @@ Enjoy!
### Branches ### Branches
* `master`: latest stable release. * `master`: latest stable release.
* `dev`: latest development branch. * `dev`: development branch for mimalloc v1.
* `dev-slice`: experimental branch with a different way of managing mimalloc pages that tends * `dev-slice`: development branch for mimalloc v2 with a new algorithm for managing internal mimalloc pages.
to use less memory than regular mimalloc with similar performance. Give it a try and please
report any significant performance improvement or degradation.
### Releases ### Release
* 2021-01-31, `v2.0.0`: beta release 2.0: new algorithm for managing internal mimalloc pages that tends to use reduce memory usage
and fragmentation compared to mimalloc v1 (especially for large workloads). Should otherwise have similar performance
(see [below](#performance)); please report if you observe any significant performance regression.
* 2021-01-31, `v1.7.0`: stable release 1.7: support explicit user provided memory regions, more precise statistics, * 2021-01-31, `v1.7.0`: stable release 1.7: support explicit user provided memory regions, more precise statistics,
improve macOS overriding, initial support for Apple M1, improved DragonFly support, faster memcpy on Windows, various small fixes. improve macOS overriding, initial support for Apple M1, improved DragonFly support, faster memcpy on Windows, various small fixes.
### Older Releases
* 2020-09-24, `v1.6.7`: stable release 1.6: using standard C atomics, passing tsan testing, improved * 2020-09-24, `v1.6.7`: stable release 1.6: using standard C atomics, passing tsan testing, improved
handling of failing to commit on Windows, add [`mi_process_info`](https://github.com/microsoft/mimalloc/blob/master/include/mimalloc.h#L156) api call. handling of failing to commit on Windows, add [`mi_process_info`](https://github.com/microsoft/mimalloc/blob/master/include/mimalloc.h#L156) api call.
* 2020-08-06, `v1.6.4`: stable release 1.6: improved error recovery in low-memory situations, * 2020-08-06, `v1.6.4`: stable release 1.6: improved error recovery in low-memory situations,