- new flag wraps even a single endpoint as a one-member pool so the
per-endpoint AdaptiveGate takes over; --concurrency becomes the gate's
STARTING point (global semaphore lifted to the gate ceiling of 96)
- demand-driven AIMD fallback for endpoints without /metrics (404,
gateway-stripped, non-sglang): ramp +1 while callers wait on acquire
and the interval is failure-free; the old code early-returned on
fetch errors and never adapted at all. Real GLM endpoint verified:
/metrics is 404, so this fallback is the live path there
- probe fetch moved to a thread: a blocked urlopen parked the whole
event loop for its 4s timeout
- current limit surfaces on the progress bar as a magenta 'gate N'
field (pushed on every change)
Co-Authored-By: Claude <noreply@anthropic.com>
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