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English(EN) The Two-Phase Machine: Your LLM Request Is Two Jobs in a Trench Coat

LLM 服务拆分为两个阶段,GPU 通量加倍

现代 LLM 服务架构正通过将过程拆分为两个不同的阶段来更有效地处理请求:预填充(prefill)和解码(decode)。预填充阶段处理整个提示,是计算密集型的,受益于高 GPU 利用率。解码阶段负责逐个生成 token,是内存带宽密集型的,需要高效的 KV 缓存管理。PagedAttention、连续批处理(continuous batching)和分块预填充(chunked prefill)等创新对于优化这些阶段至关重要,而分离式服务(disaggregated serving)正成为最大化吞吐量和最小化延迟的行业标准。 AI

影响 优化的 LLM 服务架构对于降低推理成本和改善响应时间至关重要,从而能够更广泛地采用 AI 应用。

排序理由 该条目详细介绍了 LLM 服务基础设施的技术优化和架构转变。[lever_c_demoted from research: ic=1 ai=1.0]

在 dev.to — LLM tag 阅读 →

AI 生成摘要 · Google Gemini · 来自 1 个来源。 我们如何撰写摘要 →

LLM 服务拆分为两个阶段,GPU 通量加倍

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该条目详细介绍了 LLM 服务基础设施的技术优化和架构转变。[lever_c_demoted from research: ic=1 ai=1.0]
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  1. dev.to — LLM tag TIER_1 English(EN) · Daniel Sam Pete Thiyagu ·

    两阶段机器:你的 LLM 请求是穿风衣的两个工作

    <p>Every API call you make to an LLM is secretly two jobs glued together. The first reads your entire prompt in one giant matrix multiply — compute-bound, GPUs at full throttle. The second dribbles out tokens one at a time, each step re-reading the entire conversation history fro…