What method should I have to track the congestion window of MPTCP?

multipath-tcp / mptcp

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What method should I have to track the congestion window of MPTCP? #414

Closed JianHaoYu closed 3 years ago

JianHaoYu commented 3 years ago

What method should I have to track the congestion window of MPTCP? Is the congestion window tracked by tcpprobe still reliable?

matttbe commented 3 years ago

Hi,

I think TCP Probe kernel module has been deprecated and removed a long time ago, no? Maybe we are not talking about the same thing.

I guess the best is to use eBPF and/or tracing functions. There is a TCP Probe tracing function I think /sys/kernel/debug/tracing/events/tcp/tcp_probe/.

yogiex commented 3 years ago

maybe since ubuntu 16.04 tcpprobe has been removed from the kernel, but maybe ss -i command can trace cwnd