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feat: publish reproducible million-row temporal join measurements - #14

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dev-belly merged 1 commit into
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codex/scaling-evidence-20261013
Oct 13, 2026
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dev-belly merged 1 commit into
mainfrom
codex/scaling-evidence-20261013

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PITBridge had detailed correctness evidence but no reproducible large-workload measurement. This adds an isolated-process scalar benchmark with a fixed 20-observation / 4-decision shape, late revisions, tombstone fallback and TTL. Every trial checks all status counts, compares eight complete entities with the independent oracle, and records timings, whole-process RSS, environment, source hashes and the complete output digest.

Three trials at each size are published: 100,000 observations / 20,000 lookups at 2.875 s median; 1,000,000 observations / 200,000 lookups at 31.130 s median and 1.064 GiB peak whole-process RSS. All repetitions at each size agree on the output digest. The docs distinguish generation time, join time, whole-process memory, sample-oracle coverage and unmeasured rolling/online workloads. CI exercises the runner without unstable speed assertions.

Validation: 94 unittest cases pass, including isolated subprocess determinism and late correction/deletion/TTL behavior.

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dev-belly merged commit 4ba8bde into main Oct 13, 2026
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