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README.md

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Directory with trace-cruncher scripts, used to run ftrace on containers. All user callable scripts must:

  • Have prefix trace_, in order to be auto discovered.
  • Support at least these arguments:
    • --pid : list of Process IDs to be traced, a mandatory argument.
    • --instance : Name of the trace instance used for tracing, optional argument.
    • --time : Duration of the trace in milliseconds, optional argument.
    • --describe : Return a user description of the script.
  • The scripts run in blocking mode and must support graceful termination with the signals SIGUSR1 or SIGINT.

This common functionality is implemented in tc_base.py, it can be reused by scripts by inheriting class tracer.