python-math #46: feat(delphi): large-conv tick benchmark (Phase 5) — synthesized 33k x 783 shape, cold+warm tick timing - #2675
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python-math #43: docs(delphi): s7 goal state + journal — mode collapse executed, battery 20/20
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…synthesized 33k x 783 shape, cold+warm tick timing ## What `GOAL_CUTOVER_READY.md` Phase 5 / `CUTOVER_RUNBOOK.md` risk item 3: the pre-flip measurement tool — a benchmark answering whether the Python engine can tick the largest production-scale conversations serially before production is flipped onto it. ## How it works Synthesizes the largest conversation shape found in prodclone (the local clone of the production database): 33,422 participants x 783 comments, ~2.0M votes — seeded RNG, no real data. It then times one COLD tick (full PCA from scratch) and one WARM tick (lineage warm starts populated — the steady per-tick cost the serial-capacity verdict rides on). ## First numbers Smoke run at 2000 x 200 x 120k votes on an arm64 laptop: cold 6.5s, warm 14.4s — the warm tick is the expensive one at scale (the legacy kmeans warm-start path). The benchmark runs on the bench EC2 instance class via a plain clone; the dataset is synthesized on-instance. commit-id:5747f8c9
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What
GOAL_CUTOVER_READY.mdPhase 5 /CUTOVER_RUNBOOK.mdrisk item 3: the pre-flip measurement tool — a benchmark answering whether the Python engine can tick the largest production-scale conversations serially before production is flipped onto it.How it works
Synthesizes the largest conversation shape found in prodclone (the local clone of the production database): 33,422 participants x 783 comments, ~2.0M votes — seeded RNG, no real data. It then times one COLD tick (full PCA from scratch) and one WARM tick (lineage warm starts populated — the steady per-tick cost the serial-capacity verdict rides on).
First numbers
Smoke run at 2000 x 200 x 120k votes on an arm64 laptop: cold 6.5s, warm 14.4s — the warm tick is the expensive one at scale (the legacy kmeans warm-start path). The benchmark runs on the bench EC2 instance class via a plain clone; the dataset is synthesized on-instance.
commit-id:5747f8c9
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