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---
id: vllm
title: "vLLM"
type: concept
tags: [LLM, inference, GPU, optimization]
sources:
- "[[LLM Terms Framework]]"
last_updated: 2025-12-20
---
## Definition
vLLM是一个高效LLM推理框架通过KV Cache和连续批处理提升GPU利用率。
## Key Optimizations
### KV Cache
- 缓存已计算的Key-Value矩阵
- 避免重复计算
- 大幅提升推理速度
### Continuous Batching
- 动态批处理多个请求
- 提高GPU利用率
- 降低延迟
## Why It Matters
- 官方HuggingFace推理速度慢
- vLLM可提升10-24倍速度
- 支持高并发推理
## Connections
- [[LLM]] ← uses ← [[vLLM]]
- [[推理优化]] ← uses ← [[vLLM]]
- [[GPU利用率]] ← improves ← [[vLLM]]