specific method · filed under inference & serving
Cross-layer KV-cache reuse
Reuses KV-cache content across layers to reduce the global cache footprint.
Also called Cross-layer key-value cache reuse.
- source
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- model
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- lab adopt it
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- strongest
- core
How sources treat it
One count per evidence span, weakest treatment to strongest.
core 1
Documented in
Evidence
1 span quoted from the sources, strongest treatment first.
cross-layer KV cache reuse in Compressed Sparse Attention 2 (CSA2) and FP4 KV caching reduce its global KV cache footprint
coreinference servingin DeepSeek-V4.1-FlashDeepSeek
Filed alongside
Other methods under inference & serving :: KV cache management.
Chunked prefillPrefix cachingPrompt cachingSWA Bounded ReplayLanguage-model-only serving modePeriodic cache checkpointingCompressed KV cachingKDA-aware prefix-cache managementRadixCacheZero SWA caching8-bit Mamba cache quantizationAsynchronous cache offloading and restorationAutomatic cacheBlock-based KV cacheCustomized heterogeneous KV-cache layoutDisable prefix caching for benchmarkingDynamic allocation of fixed-size state-cache poolsEncoder SWA bounded replayExact SWA KV reconstruction via full multi-layer replayFine-grained prefix hashingHierarchical KV cachingInference-side KV-cache reset on weight synchronizationKDA with prefill cacheKey-value reuse in global attention layers