Unverified50% confidenceFactExact time
In the decoder route, the context can be placed first and cached; under the causal mask, the context only needs one prefill to obtain the KV cache, which is then reused directly for each subsequent question, computing only the newly added question tokens.
1
Sources
50%
Confidence
Long-term
Relevance
10/27/2026
First Seen
Sources
Jev in Practice: A Decision Model That Replaces Token-by-Token Decoding with a Single Prefill
youtubefreeCodeCamp.org10/27/2026
Related Entities
Related Claims
UnverifiedIn push mode, the prefill instance proactively pushes the KV cache to the decode instance after completing KV cache generation, and the decode instance only needs to wait for the data to arrive, so transfer coordination no longer blocks the decode instance's token generation loop.80% similarVerifiedKV 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78% similarUnverifiedPrompt caching reuses already-computed KV cache on the server side and requires the context prefix of the previous request to be identical to the current one.73% similarUnverifiedThe prefill phase requires processing all input tokens at once and is a compute-intensive operation, whereas the decode phase generates only one token per step and is a memory-bandwidth-intensive operation.72% similarUnverifiedDue to the autoregressive nature, each decode step requires accessing the KV Cache of all previous tokens.72% similar
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