probe(1brc): lanes G–J — kanban-update arc: ownership, orchestration, batch pipeline, and the 64×64 gridlake sweet spot#635

Merged

AdaWorldAPI merged 7 commits into

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claude/v3-substrate-migration-review-o0yoxv

Jul 2, 2026

Commits on Jul 2, 2026

probe(1brc): lane G (kanban-update write path) — t4: 0.54x vs private merge, tax is all boundary, never shard ownership below contention
claude
committed
probe(1brc): lane G topology corrected — one mailbox per SoA (canon); full ownership-granularity curve to 64K mailboxes
claude
committed
probe(1brc): lane H — orchestration finds the sweet spot: lazy activation + ahead-firing batching flatten the ownership curve (23x at the 64K end)
claude
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probe(1brc): lane I — the batch pipeline spec: 64K upfront mailboxes, codebook CAM addressing, whole-table double-casts, flush cache
claude
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probe(1brc): lane J knob matrix — the 64x64 gridlake SoA is the sweet spot (46 Mrows/s, equals best streamed topology, double-WAL)
claude
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probe(1brc): FINDINGS/COMMENTARY split, 8 batching presets, ndarray array_chunks wiring
claude
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fix(onebrc lane H): derive router grain from owner grain (no straddle)
claude
committed