MB5 PD ablation v2 results: concurrency axis + reuse 3-way writeup

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- fig3_conc32k.json + fig3_concurrency_axis.png: agentic-corner concurrency
  sweep (in=32768, reuse=0.984, out=128), N 8->128, PD capped 600s / colo
  uncapped. colo completes 100% at every N (graceful, E2E 2.4s->81s); every
  static PD split collapses, earlier as N rises (viable only N<=16; <27% by N=32).
- analysis/mb5_pd_ablation/README.md: self-contained v2 writeup. Reuse axis
  3-way (A=d2048/o256, C=d2048/o128, B=d1024/o128) decomposes shape: output
  ~negligible, delta (real prefill/turn) dominant; crossover to colo at reuse
  ~90-95% robust. Run on dash2 (dash0 NICs faulted for Mooncake).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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Gahow Wang

2026-06-01 09:35:25 +08:00

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