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About this paper

Hao Kang, Weili Xu, Ziyang Li, Zheng Du, Hanchen Li, Tian Xia, Song Bian, Tushar Krishna and 3 more

Evolving Infra separates node phase allocation from shared KV-cache management, allowing nodes to switch between prefill and decode while cached context remains accessible. An online planner adapts the split, and a branch-aware directory guides cache eviction. On tested workloads, it reduced mean request latency, though Putnam P95 TTFT sometimes exceeded Dynamo’s.

Summary by alphaXiv.

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