TLDR Tech / Practical
vLLM enhances disaggregated inference with push-based KV transfer
The vLLM team has implemented a push-based NIXL connector for disaggregated LLM inference, moving transfer coordination and setup away from the latency-sensitive path. Benchmarks conducted on Amazon EC2 P5en instances utilizing AWS Elastic Fabric Adapter (EFA) showed that the push-based connector reduced time-to-first-token (TTFT) by up to three times and improved time-per-output-token (TPOT) by 30% for the Qwen3-32B model, in contrast to the standard pull-based method.
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