Cloudflare Workers 处理函数计算中的 CPU 性能问题 - V2EX
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iugo

Cloudflare Workers 处理函数计算中的 CPU 性能问题

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  •   iugo
    iugo Oct 16, 2025 2394 views
    This topic created in 205 days ago, the information mentioned may be changed or developed.
    4 replies    2025-10-17 08:39:21 +08:00
    FlashEcho
        1
    FlashEcho  
       Oct 16, 2025   1
    cloudflare 现实的做法就是预热而不是减少冷启动,它们倾向于把新任务调度到一个热实例上: https://blog.cloudflare.com/eliminating-cold-starts-2-shard-and-conquer/
    iugo
        2
    iugo  
    OP
       Oct 16, 2025   1
    @FlashEcho 应该是我没表达清楚, 我提到的 "预热" 是阿里云正在做的那种 "预置实例".

    1. 预置带来了成本.
    2. 目前阿里云的预置不是智能的, 是固定的.

    如果最近 10 分钟的并发是 10 实例, 也无法直接预测将来的并发. 比如 08:00 开始预购活动, 可能会导致 07:50 到 08:20 之间有超出平时数倍的并发, 在 08:00 到 08:01 尤甚.

    减少冷启动时间是很重要的, 但 "预置实例" 难以应对这样的场景.
    CEBBCAT
        3
    CEBBCAT  
       Oct 16, 2025   1
    谢谢分享,可能是因为不是本行的关系,感觉大意是能体会的,但是文章有些散。字体很漂亮

    update:用 GPT 总结了下,清晰多了 https://poe.com/s/z8x8lMVkhWxuA4LYNK7P
    DefoliationM
        4
    DefoliationM  
       Oct 17, 2025 via Android   1
    我现在都是用 workers-rs 写,和 aws lambda 对比过,workers 的延迟比 lambda 低很多,但是因为只能 wasm ,写起来麻烦很多。
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