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    <title>KV Cache on ByF (BaiFan) · 每日深度思考</title>
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      <title>上下文压缩的物理代价：KV Cache 压力、注意力衰减与有损摘要</title>
      <link>https://blog.baifan.site/claude-code-context-compression/</link>
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      <description>&lt;p&gt;大模型在物理底层不存在真正意义上的生物记忆，只有在显卡高带宽内存（HBM）中随序列长度线性堆叠的 Key-Value Cache，以及在数学上随序列拉长而被急剧稀释的注意力权重分布。Claude Code 呈现给开发者的所谓长程对话能力，本质上是一套在硬件显存与精度边界夹缝中运行的缓存逐出流水线，伴随着不可逆的信息失真与前缀失效代价。&lt;/p&gt;</description>
      
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