Linux 系统那条命令可以查看网络连接的 recv/send buffer 缓存的数据包的数量? - V2EX
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wniming
V2EX    Linux

Linux 系统那条命令可以查看网络连接的 recv/send buffer 缓存的数据包的数量?

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  •   wniming Nov 5, 2023 1964 views
    This topic created in 943 days ago, the information mentioned may be changed or developed.

    以前见别人用过一次,但是忘记那个命令叫什么名字了

    当时是在看别人调试一个网络程序时用的,当时他根据 buffer 里有没有被处理的数据包直接判断出了网络环境有问题,我觉得这个命令很有用,可惜当时没把名字记下来。

    7 replies    2023-11-06 12:40:55 +08:00
    wheeler
        1
    wheeler  
       Nov 5, 2023 via iPhone
    ss netstat
    wniming
        2
    wniming  
    OP
       Nov 5, 2023
    @wheeler 感谢回复,能告知一下是哪个参数吗?比如我现在要列出特定进程或所有进程的 resv send buffer 中数据包的数量,要怎么做?
    milzero
        3
    milzero  
       Nov 5, 2023
    devopsdogdog
        4
    devopsdogdog  
       Nov 5, 2023 via Android
    netstat -i or -s
    4kingRAS
        5
    4kingRAS  
       Nov 6, 2023   1
    ss -t -a
    列出所有非 listen 的 tcp 连接, 看 Send-Q 和 Recv-Q 就是,不过单位是 bytes ,不是 tcp frame
    4kingRAS
        6
    4kingRAS  
       Nov 6, 2023   1
    ss -oi 可以列出 tcp segments (更正:不是 frame )个数,看 segs_out: segs_in: ,是个累计值
    fortitudeZDY
        7
    fortitudeZDY  
       Nov 6, 2023
    ss -e -o -t 参数给他搞齐活了,不行的话 man 一把:)
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