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SGLang's +75% sampler speedup skips Qwen3 chat requests

This story is from 2026-10-26. It is preserved in the archive; the latest stories are on the live feed.

SGLang v0.5.20's release notes credit a nine-line change in the sampler with "Qwen3.5-2B decode +75% at batch 1 and +23% at batch 32". The nine lines are real, they are in the published wheel, and they do less work on the host than the line they replace. What the note leaves out is the predicate th…

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  1. 2026-10-26 15:19 · DEV Community — AI
    SGLang's +75% sampler speedup skips Qwen3 chat requests

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