tree aef8469f868640e8dae3ab49b0a2c24eb5072434
parent fc79cc503f0e1e9efd286d9017e8aff03a2a16d0
author Luke Chang <lukechang@google.com> 1643272306 +0800
committer Luke Chang <lukechang@google.com> 1643644146 +0800

trace_processor: support tcp_retransmit_skb event

The tcp_retransmit_skb ftrace event could be used to track packet timeout
or fast retransmit. The patch parse the tcp_retransmit_skb event and show
the event as instant on async task tracker.

Bug: 215086208

Test: ui/run-dev-server & manaul check the UI behavior

Test: tools/diff_test_trace_processor.py <trace_processor_shell> \
      --query-metric-filter='tcp_retransmit_skb'
Change-Id: I10c47e66ac66488ef883d5827d375ff6c7be63fc