E2 finished 1h33min wall. Headline contrast on the matched Inferact
50-session subset:
E1 (naive 1P3D + kv-aware + RDMA):
1200/1285 succ, lat p50=93s p99=219s, TTFT p50=89s p99=207s
E2 (KVC v2 + RDMA):
231/1285 succ, lat p50= 7.4s p99=65s, TTFT p50=0.43s p99=8.7s
E2 is 12.4× worse on failure rate but 20× better on TTFT p50 among
the requests that did complete. Both runs leave D2 entirely unused
for the same structural reason: Inferact's shared "permissions
instructions" boilerplate makes overlap dominate the kv-aware lex
score, and v2's migration mechanism only fires on capacity rejects
which never reach D2. The 1054 E2 timeouts are downstream of that
imbalance, not a v2 bug per se.
The doc closes with five concrete follow-ups for the next agent —
cold-D bonus, router-mode admission, default-policy control arm,
TCP-loopback comparison, failure mode forensics.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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