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[宽带症候群] 多线程为什么速度就快,如何排查原因

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公司拉了一条移动的千兆 VPN 专线,北京-福州专线,使用 wget 从福州服务器请求北京服务器上面的资源,速度只能到 8M/s,但是使用 axel 进行多线程下载,速度可以到 40-50M/s

网上搜索了下,好像是 TCP 丢包策略,会导致单线程下载降速,但是 ping 了下两端,并没有丢包啊

有谁能知道原因是什么嘛,如何优化能使 wget 下载也能跑 40M/s 左右吗?

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