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#!/usr/bin/env python
# Copyright 2010-2015 Lars Wirzenius
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
import sys
import time
import cliapp
import yaml
import obnamlib
def measure(n, func):
start = time.clock()
for i in range(n):
func()
end = time.clock()
return end - start
class MicroBenchmark(cliapp.Application):
def process_args(self, args):
n = int(args[0])
if len(args) > 1:
obj = self.read_object(args[1])
else:
obj = self.get_builtin_object()
encoded = obnamlib.serialise_object(obj)
calibrate = measure(n, lambda: None)
encode = measure(n, lambda: obnamlib.serialise_object(obj))
self.report('encode', n, encode - calibrate)
decode = measure(n, lambda: obnamlib.deserialise_object(encoded))
self.report('decode', n, decode - calibrate)
def read_object(self, filename):
with open(filename) as f:
return yaml.safe_load(f)
def get_builtin_object(self):
return {
'foo': 'bar',
'big': 'x' * 1024**2,
'dict': {
'foo': 'yo',
'long': ['x'] * 1024**2,
}
}
def report(self, what, num_iters, duration):
self.output.write(
'%s: %s ms/iter (%.1f/s)\n' %
(what, 1000.0 * duration/num_iters, num_iters/duration))
if __name__ == '__main__':
MicroBenchmark().run()
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