instrumentation_tracing.py 文件源码

def start_instrumenting(output_file, to_include=(), to_exclude=()):
  """Enable tracing of all function calls (from specified modules)."""
  trace_event.trace_enable(output_file)

  traceFunc = _generate_trace_function(to_include, to_exclude)
  sys.settrace(traceFunc)
  threading.settrace(traceFunc)