DefTruth:[Prefill优化][万字] 原理&图解vLLM Automatic Prefix Cache(RadixAttention): 首Token时延优化 这里希望能结合vllm block_manager_v2的代码,看一下具体的工程实现。 2. 配置: prefix caching配置对应: CacheConfig.enable_prefix_caching默认为False。需要手动开启。 前面大佬的文章, 主要是结合block_manager...
这种优化方法被称为 Prefix Caching,其核心思想是缓存系统提示和历史对话中的 KV Cache,以便在后续请求中复用,从而减少首次 Token 的计算开销。 本文将介绍 Prefix Caching 在一些大型模型推理系统中的实现。 SGLang 中的 Prefix Caching RadixAttention 是在SGLang 的论文《Efficiently Programming Large Language Models...
- Prefix Caching是一种优化技术,用于加速数据访问。 - vLLM是一种用于处理数据的技术。 - 其他与数据处理相关的技术有FlashAttention、Mixtral、CUDA GEMM等。 - 其他与数据管理相关的技术有BlockSpaceManager和BlockAllocator。 - 其他与GPU和CPU相关的技术有gpu_allocator和cpu_allocator。 - 其他与数据块管理相关...
网络释义 1. 前缀缓存 ... 22 §4.1前缀缓存(prefix-caching)... 22 §4.1... www.docin.com|基于5个网页 例句 释义: 全部,前缀缓存
// Due to the optimization of PrefixCaching for computation reuse, a mask is used during rotary_embedding // kernel forward to avoid multiple executions of rotary_embedding on the prefix portion. const int64_t* mask; T* query_; T* key_; int num_tokens_; Expand All @@ -61,6 +65,7...
Your current environment vLLM version 0.5.0.post1 🐛 Describe the bug Hi, Seems that there is a dirty cache issue with --enable-prefix-caching. We noticed it as we saw internal eval scores significantly degrade when running with --enable-...
Prefix Caching for Playback Delay Reduction in Edge-Fog Caching EnvironmentJunho JeongEun San SeongHyounsup LeeJoosang YounThe Korea Institute of Information and Commucation EngineeringProceedings of the Korean Institute of Information and Commucation Sciences Conference...
Multilevel aligned IP prefix caching based on singleton information IP caching has been time-proven to be capable of offloading routing-lookup modules. However, in evaluating the performance of IP caching, the cache size is... WL Shyu,CS Wu,TC Hou - IEEE Global Telecommunications Conference 被...
Proxy prefetch caching aims to reduce the latency in serving web requests by prefetching objects into the proxy cache in anticipation that they might be requested. Thus, when the clients actually request them, these objects can be served directly from the proxy cache without having to be fetched...
KV Cache Reuse (a.k.a. prefix caching) How to use Enabled by setting the environment variable NIM_ENABLE_KV_CACHE_REUSE to 1. See configuration documentation for more information. When to use In scenarios where more than 90% of the initial prompt is identical across multiple requests—...