Masami Hiramatsu c3fde1bd28 net: tcp: Add trace events for TCP congestion window tracing
This adds an event to trace TCP stat variables with
slightly intrusive trace-event. This uses ftrace/perf
event log buffer to trace those state, no needs to
prepare own ring-buffer, nor custom user apps.

User can use ftrace to trace this event as below;

  # cd /sys/kernel/debug/tracing
  # echo 1 > events/tcp/tcp_probe/enable
  (run workloads)
  # cat trace

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2018-01-02 14:27:29 -05:00
..
2017-11-30 09:26:32 -05:00
2018-01-02 13:49:32 -05:00
2017-11-01 12:19:03 +09:00
2017-12-27 12:11:51 -05:00
2017-11-08 16:12:33 +09:00