PrefixPlace assigns prefix-complete KV targets to workers using a modular-plus-coverage objective, an exact O(nk) tree DP, and a 1/2-approximation, achieving 99.84% of the exact optimum on 432 benchmark instances.
KVCache cache in the wild: Characterizing and optimizing KVCache cache at a large cloud provider,
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PrefixPlace: Provable Prefix Key-Value Placement for Large Language Model Serving under Heterogeneous Compute and Transfer Costs
PrefixPlace assigns prefix-complete KV targets to workers using a modular-plus-coverage objective, an exact O(nk) tree DP, and a 1/2-approximation, achieving 99.84% of the exact optimum on 432 benchmark instances.