microsoft/snmalloc 0.7.0

0.7.0

Repository: microsoft/snmalloc

Tag: 0.7.0

Published: 2024-11-28T14:44:12Z

Prerelease: no

Release notes:

What's Changed

See https://github.com/microsoft/snmalloc/blob/main/docs/release/0.7/README.md for an introduction to the 0.7 release.

Optimisation

Startup time

• Startup improvements by @mjp41 in https://github.com/microsoft/snmalloc/pull/639
• Startup speed by @mjp41 in https://github.com/microsoft/snmalloc/pull/665
• Implement MCS Combining lock by @mjp41 in https://github.com/microsoft/snmalloc/pull/666
• Add documentation for the combining lock by @mjp41 in https://github.com/microsoft/snmalloc/pull/683
• implement polite waiting by @SchrodingerZhu in https://github.com/microsoft/snmalloc/pull/685

Produce Consumer workloads (BatchIt)

• Using exclusive mode prefetch by @mjp41 in https://github.com/microsoft/snmalloc/pull/627
• Refactorings to support BatchIt by @nwf-msr in https://github.com/microsoft/snmalloc/pull/652
• msgpass benchmark and its refactoring dependencies by @nwf-msr in https://github.com/microsoft/snmalloc/pull/659
• Bottom commits from BatchIt by @nwf-msr in https://github.com/microsoft/snmalloc/pull/675
• BatchIt by @nwf in https://github.com/microsoft/snmalloc/pull/677

Security Features

• Configurable client meta-data by @mjp41 in https://github.com/microsoft/snmalloc/pull/662

Platforms and Bindings

Libc

• Factor out libc code into a header. by @mjp41 in https://github.com/microsoft/snmalloc/pull/624
• Remove unnecessary assertion from aligned_alloc by @mjp41 in https://github.com/microsoft/snmalloc/pull/658
• aligned_alloc: Permit alignment values smaller than sizeof(uintptr_t) by @bsdjhb in https://github.com/microsoft/snmalloc/pull/671
• aligned_alloc requirements update. by @devnexen in https://github.com/microsoft/snmalloc/pull/681

Rust

• export snmalloc::alloc_size to rust wrappers. by @devnexen in https://github.com/microsoft/snmalloc/pull/676

Windows

• Override _msize on windows by @Naville in https://github.com/microsoft/snmalloc/pull/633
• Disable empty static prefix for Windows. by @mjp41 in https://github.com/microsoft/snmalloc/pull/629
• Add Windows ARM64 support by @jblazquez in https://github.com/microsoft/snmalloc/pull/656

Haiku

• PAL::haiku finally supports getentropy. by @devnexen in https://github.com/microsoft/snmalloc/pull/684

NetBSD

• neasing netbsd build. by @devnexen in https://github.com/microsoft/snmalloc/pull/696

Minor changes and refactorings

• Add a default constructor to seqset nodes. by @davidchisnall in https://github.com/microsoft/snmalloc/pull/636
• Template construction of Pool elements by @mjp41 in https://github.com/microsoft/snmalloc/pull/641
• NFC: sizeclass: differentiate minimum step size and minimum allocation sizes by @nwf-msr in https://github.com/microsoft/snmalloc/pull/651
• Refactor new/delete overrides by @mjp41 in https://github.com/microsoft/snmalloc/pull/660
• Remove the SNMALLOC_USE_CXX17 C preprocessor symbol by @nwf-msr in https://github.com/microsoft/snmalloc/pull/667
• 0-length arrays in Buddy ranges by @nwf-msr in https://github.com/microsoft/snmalloc/pull/672
• gcc UAF warning in test/perf/singlethread -malloc by @nwf in https://github.com/microsoft/snmalloc/pull/679
• Remove some unneeded headers by @mjp41 in https://github.com/microsoft/snmalloc/pull/680
• Remove unneeded template. by @mjp41 in https://github.com/microsoft/snmalloc/pull/687

Build and CI

• Move to clang-format 15 by @mjp41 in https://github.com/microsoft/snmalloc/pull/621
• Adding an option to enable dynamic loading by @matajoh in https://github.com/microsoft/snmalloc/pull/632
• Add C++17 version for Mac. by @mjp41 in https://github.com/microsoft/snmalloc/pull/635
• Workaround runner issue. by @mjp41 in https://github.com/microsoft/snmalloc/pull/645
• FreeBSD CI. by @mjp41 in https://github.com/microsoft/snmalloc/pull/647
• Update NetBSD runner by @mjp41 in https://github.com/microsoft/snmalloc/pull/648
• Updated CI workaround. by @mjp41 in https://github.com/microsoft/snmalloc/pull/650
• Rework CI by @nwf-msr in https://github.com/microsoft/snmalloc/pull/674
• Further gcc -Werror=array-bounds fix by @nwf in https://github.com/microsoft/snmalloc/pull/678
• Provide option to CMake for Page Size by @mjp41 in https://github.com/microsoft/snmalloc/pull/664
• fuzzing test and detect the memmove error by @SchrodingerZhu in https://github.com/microsoft/snmalloc/pull/688
• Add fuzz to CI by @mjp41 in https://github.com/microsoft/snmalloc/pull/690
• clean up Result and make Result move-only by @SchrodingerZhu in https://github.com/microsoft/snmalloc/pull/691
• Minor update to clangformat file. by @mjp41 in https://github.com/microsoft/snmalloc/pull/694
• avoid chrono inclusion when clock_gettime is available by @SchrodingerZhu in https://github.com/microsoft/snmalloc/pull/695

New Contributors

• @matajoh made their first contribution in https://github.com/microsoft/snmalloc/pull/632
• @Naville made their first contribution in https://github.com/microsoft/snmalloc/pull/633
• @jblazquez made their first contribution in https://github.com/microsoft/snmalloc/pull/656
• @bsdjhb made their first contribution in https://github.com/microsoft/snmalloc/pull/671

Full Changelog: https://github.com/microsoft/snmalloc/compare/0.6.2...0.7.0