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Test z6 cluster tile scheduling#23

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Symmetricity wants to merge 1 commit into
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Test z6 cluster tile scheduling#23
Symmetricity wants to merge 1 commit into
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tmp/pr892-dynamic-cluster-clean

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AI-generated investigation PR for fork CI only.

This branch replaces PR systemed#892 fixed polygon clip-cache level with dynamic z6-cluster tile scheduling, on top of the submitted PR stack. It is intended to run the fork native CI matrix before deciding whether to revise the upstream PR.

Local checks completed:

  • Build: local-builds/pr892-dynamic-cluster-clean
  • Smoke generation: local-builds/pr892-dynamic-cluster-clean-smoke-20260524-142605
  • 10-run semantic repeat: local-builds/pr892-dynamic-cluster-clean-10repeat-20260524-142632
  • 30-run semantic repeat: local-builds/pr892-dynamic-cluster-clean-30repeat-20260524-143414

All local semantic repeat checks passed. Raw PMTiles archive bytes still differed between runs, but decoded tile content matched.

Higher zoom polygon tiles need a deterministic cached parent, but
forcing all polygon cache lookups to z6 removes most dynamic cache hits
and increases clipping fallback work.

Keep the existing dynamic clip cache behavior and instead schedule each
z6 parent tile before posting its higher-zoom descendants. This
preserves parallelism across z6 clusters while making the ancestor choice
deterministic within each cluster.

Co-authored-by: Codex <noreply@openai.com>
@Symmetricity Symmetricity deleted the tmp/pr892-dynamic-cluster-clean branch May 25, 2026 05:18
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