"""
This script executes a config repeatedly and measures the execution time,
computes the mean values and deviation.
"""
from __future__ import absolute_import
from __future__ import print_function
import os
import sys
import subprocess
import numpy
from optparse import OptionParser
from datetime import datetime
sumoBinary = os.environ.get("SUMO_BINARY", os.path.join(
os.path.dirname(sys.argv[0]), '..', '..', 'bin', 'sumo'))
optParser = OptionParser()
optParser.add_option("-v", "--verbose", action="store_true",
default=False, help="tell me what you are doing")
optParser.add_option("-c", "--configuration",
help="sumo configuration to run", metavar="FILE")
optParser.add_option("-a", "--application", default=sumoBinary,
help="application to run", metavar="FILE")
optParser.add_option("-r", "--repeat", type="int", default="20",
help="how many times to run")
(options, args) = optParser.parse_args()
app = options.application
elapsed = []
for run in range(options.repeat):
before = datetime.now()
subprocess.call([app, '-c', options.configuration])
td = datetime.now() - before
elapsed.append(td.microseconds + 1000000 * td.seconds)
a = numpy.array(elapsed)
print("%.4f %.4f" % (a.mean() / 1000, a.std() / 1000))