The Web streams spec requires promise creation at numerous points, often in hot paths and often invisible to users. Each read() call doesn't just return a promise; internally, the implementation creates additional promises for queue management, pull() coordination, and backpressure signaling.
Chained 3× transforms (8KB × 500)
。服务器推荐是该领域的重要参考
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await writer.write(enc.encode("Hello, World!"));