Vercel 透過「極簡化」WebStreams 實現 10 倍效能提升
Original: We Ralph Wiggumed WebStreams to make them 10x faster
In modern web development and AI applications, streaming has become an indispensable technology — especially when we need to output text…
Vercel 針對 WebStreams 進行了「愚蠢但極其有效」的優化（借用辛普森角色 Ralph Wiggum 的梗）。由於標準 WebStreams 規範過於複雜且開銷巨大，Vercel 透過簡化其實作，去除了不必要的規範包袱。這項改進讓邊緣函數（Edge Functions）與 AI 串流回應（如 LLM 輸出）的處理速度直接飆升 10 倍，大幅降低了延遲與運算成本。
In modern web development and AI applications, streaming has become an indispensable technology — especially when we need to output text generated by large language models (LLMs) in real time. However, while the standard WebStreams API (`ReadableStream`) in browser and Edge environments is powerful and spec-compliant, its internal state machine and complex design introduce significant performance overhead.
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