code: def timings_out(reps, func, *args, **kw):
      """timings_out(reps,func,*args,**kw) -> (t_total,t_per_call,output)
  
      Execute a function reps times, return a tuple with the elapsed total
      CPU time in seconds, the time per call and the function's output.
  
      Under Unix, the return value is the sum of user+system time consumed by
      the process, computed via the resource module.  This prevents problems
      related to the wraparound effect which the time.clock() function has.
  
      Under Windows the return value is in wall clock seconds. See the
      documentation for the time module for more details."""
  
      reps = int(reps)
      assert reps >= 1, "reps must be >= 1"
      if reps == 1:
          start = clock()
          out = func(*args, **kw)
          tot_time = clock() - start
      else:
          rng = xrange(
              reps - 1
          )  # the last time is executed separately to store output
          start = clock()
          for dummy in rng:
              func(*args, **kw)
          out = func(*args, **kw)  # one last time
          tot_time = clock() - start
      av_time = tot_time / reps
      return tot_time, av_time, out
  
imports: import time
  from .py3compat import xrange
label_desc: Use image node_id 1 for calling a global function with example usage: timings_out(reps, func) and returns: tot_time,  av_time,  out