Get amount of fast retransmissions from TCP info

From	Lars Erik Storbukås <storbukas.dev@gmail.com>
Newsgroups	linux.kernel
Subject	Get amount of fast retransmissions from TCP info
Date	2017-04-24 21:20 +0200
Message-ID	<tzRGF-2y4-5@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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I'm trying to get amount of congestion events in TCP caused by
DUPACK's (fast retransmissions), and can't seem to find any variable
in the TCP info struct which hold that value. There are three
variables in the TCP info struct that seem to hold similar congestion
values: __u8 tcpi_retransmits;__u32 tcpi_retrans; __u32
tcpi_total_retrans;

Does anyone have any pointers on how to find this value in the TCP code?

Please CC me personally if answering this question. Any help is
greatly appreciated.

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Get amount of fast retransmissions from TCP info Lars Erik Storbukås <storbukas.dev@gmail.com> - 2017-04-24 21:20 +0200
  Re: Get amount of fast retransmissions from TCP info Neal Cardwell <ncardwell@google.com> - 2017-04-24 21:50 +0200
    Re: Get amount of fast retransmissions from TCP info Lars Erik Storbukås <storbukas.dev@gmail.com> - 2017-04-24 22:30 +0200
      Re: Get amount of fast retransmissions from TCP info Neal Cardwell <ncardwell@google.com> - 2017-04-24 23:10 +0200
        Re: Get amount of fast retransmissions from TCP info Lars Erik Storbukås <storbukas.dev@gmail.com> - 2017-04-24 23:40 +0200
          Re: Get amount of fast retransmissions from TCP info Andreas Petlund <apetlund@simula.no> - 2017-04-25 00:30 +0200
            Re: Get amount of fast retransmissions from TCP info Lars Erik Storbukås <storbukas.dev@gmail.com> - 2017-05-03 21:50 +0200
              Re: Get amount of fast retransmissions from TCP info Neal Cardwell <ncardwell@google.com> - 2017-05-03 22:10 +0200

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