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arXiv — cs.AI

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Decode-Latency Feedback Prefill: A Model-Free Controller and Its Generalization Limits

Concurrent autoregressive inference creates a fundamental interference problem: prefilling a newly arrived long prompt can delay tokens for requests that are already decoding. Fixed prefill chunks reduce this interference, but the best chunk size depends on the model, hardware,…

arXiv — cs.AIBy: Gaurav Agarwal, Ashish Garg, Isha SinghalOctober 1, 2026 (Oct 1)
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  • Concurrent autoregressive inference creates a fundamental interference problem: prefilling a newly arrived long prompt can delay tokens for requests that are already decoding
  • Fixed prefill chunks reduce this interference, but the best chunk size depends on the model, hardware,…
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Decode-Latency Feedback Prefill: A Model-Free Controller and Its Generalization Limits

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