python_assert_debug_logging - benchmark, using python assert to discard function calls and arguments evaluation

python_assert_debug_logging.py

import contextlib
import time

@contextlib.contextmanager
def time_print(prefix):
  t0 = time.time()
  yield
  t1 = time.time()
  print "'%s' time: %fmsec" % (prefix, (t1-t0)*1000)


def DBG_empty(message):
  """
  Release version of debug logging function: do nothing
  """
  pass


def DBG(message):
  """
  Debug logging function
  """
  return True


ITERATIONS = 30000
ENABLE_DEBUG_MESSAGES = False
SOME_LIST = xrange(8)

with time_print("pass"):
  for x in xrange(ITERATIONS):
    pass

with time_print("empty logging function"):
  for x in xrange(ITERATIONS):
    DBG_empty( "some message with costy parameter : '%s'" + str( [x for x in SOME_LIST ] ) )

with time_print("if __debug__"):
  for x in xrange(ITERATIONS):
    if __debug__:
      DBG("some message with costy parameter : '%s'" + str( [x for x in SOME_LIST ] ))

with time_print("if ENABLE_DEBUG_MESSAGES"):
  for x in xrange(ITERATIONS):
    if ENABLE_DEBUG_MESSAGES:
      DBG("some message with costy parameter : '%s'" + str( [x for x in SOME_LIST ] ))

with time_print("assert logging function"):
  for x in xrange(ITERATIONS):
    assert DBG("some message with costy parameter : '%s'" + str( [x for x in SOME_LIST ] ))