How to use _process_time method in pytest-benchmark

Best Python code snippet using pytest-benchmark

pep418.py

Source:pep418.py

...348_perf_counter.use_monotonic = has_monotonic349def perf_counter():350    return _perf_counter(False)[0]351if os.name == 'nt':352    def _process_time(use_info):353        handle = GetCurrentProcess()354        process_times = GetProcessTimes(handle)355        value = (process_times[2] + process_times[3]) * 1e-7356        if use_info:357            info = {358                "implementation": "GetProcessTimes()",359                "resolution": 1e-7,360                "monotonic": True,361                "adjustable": False,362                # FIXME: call GetSystemTimeAdjustment() to get the resolution363            }364        else:365            info = None366        return (value, info)367else:368    import os369    try:370        import resource371    except ImportError:372        has_resource = False373    else:374        has_resource = True375    def _process_time(use_info):376        info = None377        if _process_time.clock_id is not None:378            try:379                return _clock_gettime_info(use_info, _process_time.clock_id)380            except OSError:381                _process_time.clock_id = None382        if _process_time.use_getrusage:383            try:384                usage = resource.getrusage(resource.RUSAGE_SELF)385                value = usage[0] + usage[1]386            except OSError:387                _process_time.use_getrusage = False388            else:389                if use_info:390                    info = {391                        "implementation": "getrusage(RUSAGE_SELF)",392                        "resolution": 1e-6,393                        "monotonic": True,394                        "adjustable": False,395                    }396                return (value, info)397        if _process_time.use_times:398            try:399                times = os.times()400                value = times[0] + times[1]401            except OSError:402                _process_time.use_getrusage = False403            else:404                if use_info:405                    try:406                        ticks_per_second = os.sysconf("SC_CLK_TCK")407                    except ValueError:408                        ticks_per_second = 60 # FIXME: get HZ constant409                    info = {410                        "implementation": "times()",411                        "resolution": 1.0 / ticks_per_second,412                        "monotonic": True,413                        "adjustable": False,414                    }415                return (value, info)416        return _libc_clock_info(use_info)417    if has_clock_gettime and CLOCK_PROCESS_CPUTIME_ID is not None:418        _process_time.clock_id = CLOCK_PROCESS_CPUTIME_ID419    elif has_clock_gettime and CLOCK_PROF is not None:420        _process_time.clock_id = CLOCK_PROF421    else:422        _process_time.clock_id = None423    _process_time.use_getrusage = has_resource424    # On OS/2, only the 5th field of os.times() is set, others are zeros425    _process_time.use_times = (hasattr(os, 'times') and os.name != 'os2')426def process_time():427    return _process_time(False)[0]428if os.name == "nt":429    def _time(use_info):430        value = GetSystemTimeAsFileTime() * 1e-7431        if use_info:432            info = {433                'implementation': 'GetSystemTimeAsFileTime',434                'resolution': 1e-7,435                'monotonic': False,436                # FIXME: call GetSystemTimeAdjustment() to get the resolution437                # and adjustable438            }439        else:440            info = None441        return (value, info)442else:443    def _time(use_info):444        info = None445        if has_clock_gettime and CLOCK_REALTIME is not None:446            try:447                return _clock_gettime_info(use_info, CLOCK_REALTIME)448            except OSError:449                # CLOCK_REALTIME is not supported (unlikely)450                pass451        if has_gettimeofday:452            try:453                tv = gettimeofday()454            except OSError:455                # gettimeofday() should not fail456                pass457            else:458                if use_info:459                    info = {460                        'monotonic': False,461                        "implementation": "gettimeofday()",462                        "resolution": 1e-6,463                        'monotonic': False,464                        'adjustable': True,465                    }466                value = tv.tv_sec + tv.tv_usec * 1e-6467                return (value, info)468        # FIXME: implement ftime()469        if has_ftime:470            if use_info:471                info = {472                    "implementation": "ftime()",473                    "resolution": 1e-3,474                    'monotonic': False,475                    'adjustable': True,476                }477            value = ftime()478        elif has_libc_time:479            if use_info:480                info = {481                    "implementation": "time()",482                    "resolution": 1.0,483                    'monotonic': False,484                    'adjustable': True,485                }486            value = float(_libc_time())487        else:488            if use_info:489                info = {490                    "implementation": "time.time()",491                    'monotonic': False,492                    'adjustable': True,493                }494                if os.name == "nt":495                    # On Windows, time.time() uses ftime()496                    info["resolution"] = 1e-3497                else:498                    # guess that time.time() uses gettimeofday()499                    info["resolution"] = 1e-6500            value = python_time.time()501        return (value, info)502def time():503    return _time(False)[0]504try:505    import select506except ImportError:507    has_select = False508else:509    # FIXME: On Windows, select.select([], [], [], seconds) fails with510    #        select.error(10093)511    has_select = (hasattr(select, "select") and os.name != "nt")512if has_select:513    def _sleep(seconds):514        return select.select([], [], [], seconds)515elif has_delay:516    def _sleep(seconds):517        milliseconds = int(seconds * 1000)518        # FIXME519        delay(milliseconds)520#elif os.name == "nt":521#    def _sleep(seconds):522#        milliseconds = int(seconds * 1000)523#        # FIXME: use ctypes524#        win32api.ResetEvent(hInterruptEvent);525#        win32api.WaitForSingleObject(sleep.sigint_event, milliseconds)526#527#    sleep.sigint_event = win32api.CreateEvent(NULL, TRUE, FALSE, FALSE)528#    # SetEvent(sleep.sigint_event) will be called by the signal handler of SIGINT529elif os.name == "os2":530    def _sleep(seconds):531        milliseconds = int(seconds * 1000)532        # FIXME533        DosSleep(milliseconds)534elif has_libc_sleep:535    def _sleep(seconds):536        seconds = int(seconds)537        _libc_sleep(seconds)538else:539    def _sleep(seconds):540        python_time.sleep(seconds)541def sleep(seconds):542    if seconds < 0:543        raise ValueError("sleep length must be non-negative")544    _sleep(seconds)545def _libc_clock_info(use_info):546    if use_info:547        info = {548            'implementation': 'clock()',549            'resolution': 1.0,550            # FIXME: 'resolution': 1.0 / CLOCKS_PER_SEC,551            'monotonic': True,552            'adjustable': False,553        }554        if os.name != "nt":555            info['monotonic'] = True556    else:557        info = None558    if has_libc_clock:559        value = _libc_clock()560        if use_info:561            info['implementation'] = 'clock()'562    else:563        value = python_time.clock()564        if use_info:565            info['implementation'] = 'time.clock()'566    return (value, info)567def _win_perf_counter(use_info):568    if _win_perf_counter.perf_frequency is None:569        try:570            _win_perf_counter.perf_frequency = float(QueryPerformanceFrequency())571        except WindowsError:572            # QueryPerformanceFrequency() fails if the installed573            # hardware does not support a high-resolution performance574            # counter575            return (None, None)576    value = QueryPerformanceCounter() / _win_perf_counter.perf_frequency577    if use_info:578        info = {579            'implementation': 'QueryPerformanceCounter',580            'resolution': 1.0 / _win_perf_counter.perf_frequency,581            'monotonic': True,582            'adjustable': False,583        }584    else:585        info = None586    return (value, info)587_win_perf_counter.perf_frequency = None588if os.name == 'nt':589    def _clock(use_info):590        info = None591        if _clock.use_performance_counter:592            value, info = _win_perf_counter(use_info)593            if value is not None:594                return (value, info)595        return _libc_clock_info(use_info)596    _clock.use_performance_counter = True597else:598    def _clock(use_info):599        return _libc_clock_info(use_info)600def clock():601    return _clock(False)[0]602class clock_info(object):603    def __init__(self, implementation, monotonic, adjustable, resolution):604        self.implementation = implementation605        self.monotonic = monotonic606        self.adjustable = adjustable607        self.resolution = resolution608    def __repr__(self):609        return (610            'clockinfo(adjustable=%s, implementation=%r, monotonic=%s, resolution=%s'611            % (self.adjustable, self.implementation, self.monotonic, self.resolution))612def get_clock_info(name):613    if name == 'clock':614        info = _clock(True)[1]615    elif name == 'perf_counter':616        info = _perf_counter(True)[1]617    elif name == 'process_time':618        info = _process_time(True)[1]619    elif name == 'time':620        info = _time(True)[1]621    elif has_monotonic and name == 'monotonic':622        info = _monotonic(True)[1]623    else:624        raise ValueError("unknown clock: %s" % name)625    return clock_info(**info)626if __name__ == "__main__":627    import threading628    import unittest629    from errno import EPERM630    class TestPEP418(unittest.TestCase):631        if not hasattr(unittest.TestCase, 'assertIsInstance'):632            # Python < 2.7 or Python < 3.2633            def assertIsInstance(self, obj, klass):634                self.assertTrue(isinstance(obj, klass))635            def assertGreater(self, a, b):636                self.assertTrue(a > b)637            def assertLess(self, a, b):638                self.assertTrue(a < b)639            def assertLessEqual(self, a, b):640                self.assertTrue(a <= b)641            def assertAlmostEqual(self, first, second, delta):642                self.assertTrue(abs(first - second) <= delta)643        def test_clock(self):644            clock()645            info = get_clock_info('clock')646            self.assertEqual(info.monotonic, True)647            self.assertEqual(info.adjustable, False)648        def test_get_clock_info(self):649            clocks = ['clock', 'perf_counter', 'process_time', 'time']650            if has_monotonic:651                clocks.append('monotonic')652            for name in clocks:653                info = get_clock_info(name)654                self.assertIsInstance(info.implementation, str)655                self.assertNotEqual(info.implementation, '')656                self.assertIsInstance(info.monotonic, bool)657                self.assertIsInstance(info.resolution, float)658                # 0 < resolution <= 1.0659                self.assertGreater(info.resolution, 0)660                self.assertLessEqual(info.resolution, 1)661                self.assertIsInstance(info.adjustable, bool)662            self.assertRaises(ValueError, get_clock_info, 'xxx')663        if not has_monotonic:664            print("Skip test_monotonic: need time.monotonic")665        else:666            def test_monotonic(self):667                t1 = monotonic()668                python_time.sleep(0.1)669                t2 = monotonic()670                dt = t2 - t1671                self.assertGreater(t2, t1)672                self.assertAlmostEqual(dt, 0.1, delta=0.2)673                info = get_clock_info('monotonic')674                self.assertEqual(info.monotonic, True)675                self.assertEqual(info.adjustable, False)676        if not has_monotonic or not has_clock_gettime:677            if not has_monotonic:678                print('Skip test_monotonic_settime: need time.monotonic')679            elif not has_clock_gettime:680                print('Skip test_monotonic_settime: need time.clock_settime')681        else:682            def test_monotonic_settime(self):683                t1 = monotonic()684                realtime = clock_gettime(CLOCK_REALTIME)685                # jump backward with an offset of 1 hour686                try:687                    clock_settime(CLOCK_REALTIME, realtime - 3600)688                except OSError as err:689                    if err.errno == EPERM:690                        if hasattr(unittest, 'SkipTest'):691                            raise unittest.SkipTest(str(err))692                        else:693                            print("Skip test_monotonic_settime: %s" % err)694                            return695                    else:696                        raise697                t2 = monotonic()698                clock_settime(CLOCK_REALTIME, realtime)699                # monotonic must not be affected by system clock updates700                self.assertGreaterEqual(t2, t1)701        def test_perf_counter(self):702            perf_counter()703        def test_process_time(self):704            start = process_time()705            python_time.sleep(0.1)706            stop = process_time()707            self.assertLess(stop - start, 0.01)708            info = get_clock_info('process_time')709            self.assertEqual(info.monotonic, True)710            self.assertEqual(info.adjustable, False)711        def test_process_time_threads(self):712            class BusyThread(threading.Thread):713                def run(self):714                    while not self.stop:715                        pass716            thread = BusyThread()717            thread.stop = False...

test_link_hook.py

Source:test_link_hook.py

...15        self.forward_preprocess_args = []16        self.forward_postprocess_args = []17    def added(self, link):18        assert link is None or isinstance(link, chainer.Link)19        self.added_args.append((_process_time(), link))20    def deleted(self, link):21        assert link is None or isinstance(link, chainer.Link)22        self.deleted_args.append((_process_time(), link))23    def forward_preprocess(self, args):24        assert isinstance(args.link, chainer.Link)25        assert isinstance(args.forward_name, str)26        assert isinstance(args.args, tuple)27        assert isinstance(args.kwargs, dict)28        assert isinstance(str(args), str)29        assert isinstance(repr(args), str)30        self.forward_preprocess_args.append((_process_time(), args))31    def forward_postprocess(self, args):32        assert isinstance(args.link, chainer.Link)33        assert isinstance(args.forward_name, str)34        assert isinstance(args.args, tuple)35        assert isinstance(args.kwargs, dict)36        assert hasattr(args, 'out')37        assert isinstance(str(args), str)38        assert isinstance(repr(args), str)39        self.forward_postprocess_args.append((_process_time(), args))40class MyModel(chainer.Chain):41    def __init__(self, w):42        super(MyModel, self).__init__()43        with self.init_scope():44            self.l1 = chainer.links.Linear(3, 2, initialW=w)45    def forward(self, x, test1, test2):46        return self.l1(x)47class TestLinkHook(unittest.TestCase):48    def _create_model_and_data(self):49        x = numpy.array([[3, 1, 2]], numpy.float32)50        w = numpy.array([[1, 3, 2], [6, 4, 5]], numpy.float32)51        dot = numpy.dot(x, w.T)52        model = MyModel(w)53        return model, x, dot...

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