New Arena Range - #855

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Matthew Parkinson (mjp41) wants to merge 16 commits into

mainfrom

BackendArenaRange

Commits on Aug 5, 2026

Fix double base-adjust in FlatPagemap::get_mut<true>

Matthew Parkinson (mjp41)
and
Copilot
committed
95d202a
Fix compile-time aligned alloc/dealloc asymmetry

Matthew Parkinson (mjp41)
and
Copilot
committed
75febc9
Add ArenaBins<B>: bin scheme, per-sc tables, and bitmap

Matthew Parkinson (mjp41)
and
Copilot
committed
f6227eb
Add RBTree::neighbours probe helper

Matthew Parkinson (mjp41)
and
Copilot
committed
88b2a42
Add Arena: dual-tree free-range manager with consolidation

Matthew Parkinson (mjp41)
and
Copilot
committed
7a305b5
Arena: representation-agnostic Rep concept + boundary support

Matthew Parkinson (mjp41)
and
Copilot
committed
f8adf4e
Add LargeArenaRange and generalise Arena to byte units

Matthew Parkinson (mjp41)
and
Copilot
committed
6921ca6
Substitute LargeBuddyRange with LargeArenaRange in default range pipelines

Matthew Parkinson (mjp41)
and
Copilot
committed
4d9b61a
Uniform sizeclass encoding for small and large allocations

Matthew Parkinson (mjp41)
and
Copilot
committed
0059958
Per-chunk pagemap offset encoding

Matthew Parkinson (mjp41)
and
Copilot
committed
79ba787
Front-end: request non-pow2 large allocations

Matthew Parkinson (mjp41)
and
Copilot
committed
333ac5c
Add non-pow2 metadata sub-allocator: InplaceRep + SmallArenaRange

Matthew Parkinson (mjp41)
and
Copilot
committed
9948f4c
Wire SmallArenaRange in as the LocalMetaRange

Matthew Parkinson (mjp41)
and
Copilot
committed
667e114
Remove buddy allocators

Matthew Parkinson (mjp41)
and
Copilot
committed
9eec94f
Add docs/Arena.md

Matthew Parkinson (mjp41)
and
Copilot
committed
8016c32

Commits on Sep 3, 2026

Merge branch 'main' into BackendArenaRange
Matthew Parkinson (mjp41)
authored
7ae1128

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New Arena Range - #855

New Arena Range#855
Matthew Parkinson (mjp41) wants to merge 16 commits into
mainfrom
BackendArenaRange

Commits on Aug 5, 2026

Fix double base-adjust in FlatPagemap::get_mut<true>

Fix compile-time aligned alloc/dealloc asymmetry

Add ArenaBins<B>: bin scheme, per-sc tables, and bitmap

Add RBTree::neighbours probe helper

Add Arena: dual-tree free-range manager with consolidation

Arena: representation-agnostic Rep concept + boundary support

Add LargeArenaRange and generalise Arena to byte units

Substitute LargeBuddyRange with LargeArenaRange in default range pipelines

Uniform sizeclass encoding for small and large allocations

Per-chunk pagemap offset encoding

Front-end: request non-pow2 large allocations

Add non-pow2 metadata sub-allocator: InplaceRep + SmallArenaRange

Wire SmallArenaRange in as the LocalMetaRange

Remove buddy allocators

Add docs/Arena.md

Commits on Sep 3, 2026

Merge branch 'main' into BackendArenaRange