E1 finished 1h29min wall on the 50-session Inferact subset. Headline:
1200/1285 succeeded, latency p50=93s p99=219s, TTFT p50=89s p99=207s,
85 timeouts. Decode-2 was never bound to a single session — all 50
sessions stuck to decode-0/1 by kv-aware policy stickiness with no
migration to rebalance, so effective topology was 1P2D, not 1P3D.
This is exactly the failure mode H1 predicts naive pd-disaggregation
should exhibit, giving E2 (full KVC v2 with migration) a concrete
baseline to improve against.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
631b2c8847