feat(util): add ConcurrentHashtable with lock-free D1/D2 composite-key tables#11675

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dougqh wants to merge 3 commits into

feat/concurrent-hashtable

Commits on Jun 18, 2026

feat(util): add ConcurrentHashtable with lock-free D1/D2 composite-key tables

dougqh
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claude
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refactor(util): move shared ConcurrentHashtable mechanics into Support class; add D2 benchmark

dougqh
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claude
committed
test(util): add chain collision and concurrent distinct-key tests for ConcurrentHashtable

dougqh
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claude
committed