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prompt ordering

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papersTODAY 04:00 UTC

arXiv Paper Casts LLM Prefix Sharing as a Sorting Problem

A new arXiv paper argues that when prompts are built from reusable components such as retrieved passages, tool definitions, or few-shot examples, the order in which those pieces are arranged determines how much KV cache computation can be reused. Since current serving systems only reuse cache on exact prefix matches, the work recasts the ordering decision as a sorting problem. No specific benchmark results are described in the provided abstract.

kv-cache/llm-serving/efficiency/research