Source code for pymor.tools.timing

# This file is part of the pyMOR project (http://www.pymor.org).
# Copyright 2013-2018 pyMOR developers and contributors. All rights reserved.
# License: BSD 2-Clause License (http://opensource.org/licenses/BSD-2-Clause)

import time
import numpy as np
import functools

from pymor.core.logger import getLogger


[docs]class Timer(object): """You can use me as a context manager, plain instance or decorator to time execution of a code scope:: with Timer() as timer: do_some_stuff() do more stuff() #outputs time in (s) ### OR ### @timing.Timer('name', logging.debug) def function(*args): do_stuff function(1) #outputs time in (s) to logging.debug ### OR ### timer = timing.Timer() timer.start() do_stuff() timer.stop() print(timer.dt) """ def __init__(self, section, log=getLogger(__name__)): self._section = section self._log = log self._start = 0 def start(self): self.dt = -1 self._start = time.clock() def stop(self): self.dt = time.clock() - self._start def __enter__(self): self.start() def __exit__(self, type_, value, traceback): self.stop() self._log.info('Execution of %s took %f (s)', self._section, self.dt)
[docs] def __call__(self, func): func.decorated = self @functools.wraps(func) def new_func(*args, **kwargs): with self: return func(*args, **kwargs) return new_func
[docs]def busywait(amount): arr = np.arange(1000) for _ in range(amount): np.random.shuffle(arr)