Allow backfill progress whenever shared capacity is positive - #52
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Allow backfill progress whenever shared capacity is positive#52chaptersix wants to merge 1 commit into
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marked this pull request as ready for review
September 5, 2026 02:09
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When the number of backfillers exceeds shared free capacity, integer division previously prevented every range from progressing. Admit one start when capacity is positive; serialized CHASM tasks recompute the remaining global budget before every enqueue. Zero capacity still stalls.
Validation: deterministic 450/451/1000-range drain tests pass with unique request identities and the existing shared budget; affected scheduler packages and V1 scheduler/replay tests pass;
make lint-code-fastreports zero issues;git diff --checkpasses. No schema or V1 workflow behavior changes.Evidence report. This fixes admission liveness; it does not impose a new ordering contract on concurrent ranges or remove the existing O(N) counting scan.