Demystifying llm-d and vLLM: On the Right Track

Source: Red Hat Blog

vLLM: The High‑Performance Inference Engine

vLLM is an enterprise‑grade, open‑source inference engine for LLMs. Its performance edge comes from several key innovations:

• PagedAttention – enables efficient KV cache management.
• Speculative decoding support – accelerates token generation by predicting multiple tokens ahead.
• Tensor parallelism (TP) and multi‑model support – scales across multiple GPUs and serves several models simultaneously.
• Integration with Hugging Face – seamless loading of models from the Hugging Face Hub.