rtime.py

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# Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
 
#
# $Id: rtime.py,v 1.1 2005-05-06 22:44:59 ssnyder Exp $
# File: normphi.py
# Created: sss, 2004.
# Purpose: Measure the execution time of a function.
#
 
 
import resource
 
 
def rtime (fn, *args, **kw):
    """Call FN with the additional arguments passed in.
Print a report of the CPU time taken.
"""
    ru0 = resource.getrusage (resource.RUSAGE_SELF)
    ret = None
    try:
        ret = fn (*args, **kw)
    finally:
        ru1 = resource.getrusage (resource.RUSAGE_SELF)
        print ("utime: %f, stime: %f" % (ru1.ru_utime-ru0.ru_utime,
                                         ru1.ru_stime-ru0.ru_stime))
    return ret