[Performance]: Non-spec Qwen3.5 CUDA GDN wrapper fallback regressed H200 throughput (fixed by #59735)
![[Performance]: Non-spec Qwen3.5 CUDA GDN wrapper fallback regressed H200 throughput (fixed by #59735)](https://www.chat-gpts.plus/wp-content/uploads/2026/10/59520-c6b19167-768x403.jpg)
在 vLLM 0.29.0 上以纯非投机(non-spec)方式运行 Qwen3.5 并启用 CUDA 版 GDN 解码内核时,H200 吞吐会跌入性能回退路径,报错为 [Performance]: Non-spec Qwen3.5 CUDA GDN wrapper fallback regress
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