Unverified50% confidenceFactExact time
KV Cache通过将已计算的键值对持久化存储，使相同Prompt前缀的后续请求可直接复用，跳过重复的矩阵运算
1
Sources
50%
Confidence
Long-term
Relevance
7/19/2026
First Seen
Sources
Related Claims
UnverifiedThe KV Cache (Key-Value Cache) mechanism allows API requests sharing the same prefix to reuse already-computed Key and Value vectors, thereby significantly reducing inference costs.80% similarUnverifiedThe core principle of prompt caching is cross-request reuse of the KV Cache, where already-computed KV states can be cached and reused when multiple requests share the same prefix.77% similarUnverifiedPrefix Caching technology persistently stores already-computed KV vectors on the server side, allowing direct reuse when new requests share a large number of repeated prefixes with previous requests, with the matched portion billed at the cache price.76% similarUnverifiedvLLM的前缀缓存（Prefix Caching）对KV Cache块计算哈希值，当新请求输入前缀与已缓存请求重叠时直接复用物理缓存块，跳过该部分prefill计算75% similarUnverifiedContinuous Batching adopts iteration-level scheduling granularity, allowing completed requests to be removed and new requests to be inserted upon each token generation completion.70% similar
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