Both numbers can be true at once. The answer shows how to turn the gap into a short list of measurable dilutions, which one usually eats most of the 2x, and the replay test that settles it.
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The benchmark showed a 2x speedup, and production saw 10%. Reconcile the two numbers before anyone rolls it back.
Both numbers can be true at once. The answer shows how to turn the gap into a short list of measurable dilutions, which one usually eats most of the 2x, and the replay test that settles it.
Updated Oct 2026 · Worked answers on inference mechanisms, with calculations, implementation details, and follow-up questions.
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Next in this trackp99 TPOT spikes every few seconds in a regular pattern while p50 stays flat. Find the cause.Next in this trackA two-node deployment loads weights, reports healthy, then hangs on the first request. Debug NCCL and the engine.Next in this trackAfter turning on speculative decoding, p50 latency improved and p99 got worse. Explain it, and decide what to ship.
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