vLLM baseline took 6.84h for an AI-SQL query estimated at 15min speed-of-light
sh_reya · x · 2026-09-25
The Quail team shared baseline numbers: running all LLM calls through a hand-tuned vLLM setup caused heavy host overhead, and vLLM discarded KV cache it needed later, forcing 50 million extra tokens of processing.
One query took 6.84 hours versus a speed-of-light estimate of just 15 minutes — a 27x gap showing that query planning and inference scheduling must be co-designed.
Related event: UC Berkeley and Modal Open-Source Quail, an AI-SQL Inference Engine(25 posts)→
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