start_vllm_pair.sh
ROLE_A / ROLE_B env vars (default kv_producer / kv_consumer for strict
PD-disagg). Override to kv_both for the kv_both control. The role is
injected into --kv-transfer-config so vLLM imposes the role restriction.
mb2_kv_transfer.py
--skip-verify flag drops step 3 (the plain completion sanity-check on
the destination), required when the dst is kv_consumer-only since a
kv_consumer instance refuses to serve a request without
do_remote_prefill. The transfer-time itself is still measured from
step 2 (do_remote_prefill on the consumer).
Also: per-step client-side wall-clock timestamps (t_step1_client_unix,
t_step2_client_unix, t_step2_end_unix) are now captured so the
post-hoc breakdown analyzer can join with the per-instance JSONL logs
on absolute time.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Gahow Wang
622e0bc04c