新闻
Improve TTFT for Multi-Turn Agentic Workloads with Bi-Directional KV Transfer in vLLM
vLLM · Sunita Nadampalli (AWS) · 发布于 · 阅读约3分钟
30秒读懂
- 发生了什么
- vLLM added bi-directional KV cache transfer between prefill and decode nodes to reduce redundant computation in multi-turn conversations.
- 为何重要
- Matters for engineers building conversational agents or agentic systems where growing context causes repeated prefill recomputation and rising latency.
- 注意
- Bi-directional transfer adds network overhead; only beneficial above a configurable token threshold. Fixed TTL for retained blocks requires tuning to conversation patterns.
- agent
- agentic
- llm
- prompt
- vllm
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