| #!/usr/local/bin/python -O |
| |
| """ A Python Benchmark Suite |
| |
| """ |
| # Note: Please keep this module compatible to Python 2.6. |
| # |
| # Tests may include features in later Python versions, but these |
| # should then be embedded in try-except clauses in the configuration |
| # module Setup.py. |
| # |
| |
| from __future__ import print_function |
| |
| # pybench Copyright |
| __copyright__ = """\ |
| Copyright (c), 1997-2006, Marc-Andre Lemburg (mal@lemburg.com) |
| Copyright (c), 2000-2006, eGenix.com Software GmbH (info@egenix.com) |
| |
| All Rights Reserved. |
| |
| Permission to use, copy, modify, and distribute this software and its |
| documentation for any purpose and without fee or royalty is hereby |
| granted, provided that the above copyright notice appear in all copies |
| and that both that copyright notice and this permission notice appear |
| in supporting documentation or portions thereof, including |
| modifications, that you make. |
| |
| THE AUTHOR MARC-ANDRE LEMBURG DISCLAIMS ALL WARRANTIES WITH REGARD TO |
| THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND |
| FITNESS, IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, |
| INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING |
| FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, |
| NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION |
| WITH THE USE OR PERFORMANCE OF THIS SOFTWARE ! |
| """ |
| |
| import sys, time, operator, platform |
| from CommandLine import * |
| |
| try: |
| import cPickle |
| pickle = cPickle |
| except ImportError: |
| import pickle |
| |
| # Version number; version history: see README file ! |
| __version__ = '2.1' |
| |
| ### Constants |
| |
| # Second fractions |
| MILLI_SECONDS = 1e3 |
| MICRO_SECONDS = 1e6 |
| |
| # Percent unit |
| PERCENT = 100 |
| |
| # Horizontal line length |
| LINE = 79 |
| |
| # Minimum test run-time |
| MIN_TEST_RUNTIME = 1e-3 |
| |
| # Number of calibration runs to use for calibrating the tests |
| CALIBRATION_RUNS = 20 |
| |
| # Number of calibration loops to run for each calibration run |
| CALIBRATION_LOOPS = 20 |
| |
| # Allow skipping calibration ? |
| ALLOW_SKIPPING_CALIBRATION = 1 |
| |
| # Timer types |
| TIMER_TIME_TIME = 'time.time' |
| TIMER_TIME_CLOCK = 'time.clock' |
| TIMER_SYSTIMES_PROCESSTIME = 'systimes.processtime' |
| |
| # Choose platform default timer |
| if sys.platform[:3] == 'win': |
| # On WinXP this has 2.5ms resolution |
| TIMER_PLATFORM_DEFAULT = TIMER_TIME_CLOCK |
| else: |
| # On Linux this has 1ms resolution |
| TIMER_PLATFORM_DEFAULT = TIMER_TIME_TIME |
| |
| # Print debug information ? |
| _debug = 0 |
| |
| ### Helpers |
| |
| def get_timer(timertype): |
| |
| if timertype == TIMER_TIME_TIME: |
| return time.time |
| elif timertype == TIMER_TIME_CLOCK: |
| return time.clock |
| elif timertype == TIMER_SYSTIMES_PROCESSTIME: |
| import systimes |
| return systimes.processtime |
| else: |
| raise TypeError('unknown timer type: %s' % timertype) |
| |
| def get_machine_details(): |
| |
| if _debug: |
| print('Getting machine details...') |
| buildno, builddate = platform.python_build() |
| python = platform.python_version() |
| if sys.maxunicode == 65535: |
| # UCS2 build (standard) |
| unitype = 'UCS2' |
| else: |
| # UCS4 build (most recent Linux distros) |
| unitype = 'UCS4' |
| bits, linkage = platform.architecture() |
| return { |
| 'platform': platform.platform(), |
| 'processor': platform.processor(), |
| 'executable': sys.executable, |
| 'implementation': getattr(platform, 'python_implementation', |
| lambda:'n/a')(), |
| 'python': platform.python_version(), |
| 'compiler': platform.python_compiler(), |
| 'buildno': buildno, |
| 'builddate': builddate, |
| 'unicode': unitype, |
| 'bits': bits, |
| } |
| |
| def print_machine_details(d, indent=''): |
| |
| l = ['Machine Details:', |
| ' Platform ID: %s' % d.get('platform', 'n/a'), |
| ' Processor: %s' % d.get('processor', 'n/a'), |
| '', |
| 'Python:', |
| ' Implementation: %s' % d.get('implementation', 'n/a'), |
| ' Executable: %s' % d.get('executable', 'n/a'), |
| ' Version: %s' % d.get('python', 'n/a'), |
| ' Compiler: %s' % d.get('compiler', 'n/a'), |
| ' Bits: %s' % d.get('bits', 'n/a'), |
| ' Build: %s (#%s)' % (d.get('builddate', 'n/a'), |
| d.get('buildno', 'n/a')), |
| ' Unicode: %s' % d.get('unicode', 'n/a'), |
| ] |
| joiner = '\n' + indent |
| print(indent + joiner.join(l) + '\n') |
| |
| ### Test baseclass |
| |
| class Test: |
| |
| """ All test must have this class as baseclass. It provides |
| the necessary interface to the benchmark machinery. |
| |
| The tests must set .rounds to a value high enough to let the |
| test run between 20-50 seconds. This is needed because |
| clock()-timing only gives rather inaccurate values (on Linux, |
| for example, it is accurate to a few hundreths of a |
| second). If you don't want to wait that long, use a warp |
| factor larger than 1. |
| |
| It is also important to set the .operations variable to a |
| value representing the number of "virtual operations" done per |
| call of .run(). |
| |
| If you change a test in some way, don't forget to increase |
| its version number. |
| |
| """ |
| |
| ### Instance variables that each test should override |
| |
| # Version number of the test as float (x.yy); this is important |
| # for comparisons of benchmark runs - tests with unequal version |
| # number will not get compared. |
| version = 2.1 |
| |
| # The number of abstract operations done in each round of the |
| # test. An operation is the basic unit of what you want to |
| # measure. The benchmark will output the amount of run-time per |
| # operation. Note that in order to raise the measured timings |
| # significantly above noise level, it is often required to repeat |
| # sets of operations more than once per test round. The measured |
| # overhead per test round should be less than 1 second. |
| operations = 1 |
| |
| # Number of rounds to execute per test run. This should be |
| # adjusted to a figure that results in a test run-time of between |
| # 1-2 seconds. |
| rounds = 100000 |
| |
| ### Internal variables |
| |
| # Mark this class as implementing a test |
| is_a_test = 1 |
| |
| # Last timing: (real, run, overhead) |
| last_timing = (0.0, 0.0, 0.0) |
| |
| # Warp factor to use for this test |
| warp = 1 |
| |
| # Number of calibration runs to use |
| calibration_runs = CALIBRATION_RUNS |
| |
| # List of calibration timings |
| overhead_times = None |
| |
| # List of test run timings |
| times = [] |
| |
| # Timer used for the benchmark |
| timer = TIMER_PLATFORM_DEFAULT |
| |
| def __init__(self, warp=None, calibration_runs=None, timer=None): |
| |
| # Set parameters |
| if warp is not None: |
| self.rounds = int(self.rounds / warp) |
| if self.rounds == 0: |
| raise ValueError('warp factor set too high') |
| self.warp = warp |
| if calibration_runs is not None: |
| if (not ALLOW_SKIPPING_CALIBRATION and |
| calibration_runs < 1): |
| raise ValueError('at least one calibration run is required') |
| self.calibration_runs = calibration_runs |
| if timer is not None: |
| self.timer = timer |
| |
| # Init variables |
| self.times = [] |
| self.overhead_times = [] |
| |
| # We want these to be in the instance dict, so that pickle |
| # saves them |
| self.version = self.version |
| self.operations = self.operations |
| self.rounds = self.rounds |
| |
| def get_timer(self): |
| |
| """ Return the timer function to use for the test. |
| |
| """ |
| return get_timer(self.timer) |
| |
| def compatible(self, other): |
| |
| """ Return 1/0 depending on whether the test is compatible |
| with the other Test instance or not. |
| |
| """ |
| if self.version != other.version: |
| return 0 |
| if self.rounds != other.rounds: |
| return 0 |
| return 1 |
| |
| def calibrate_test(self): |
| |
| if self.calibration_runs == 0: |
| self.overhead_times = [0.0] |
| return |
| |
| calibrate = self.calibrate |
| timer = self.get_timer() |
| calibration_loops = range(CALIBRATION_LOOPS) |
| |
| # Time the calibration loop overhead |
| prep_times = [] |
| for i in range(self.calibration_runs): |
| t = timer() |
| for i in calibration_loops: |
| pass |
| t = timer() - t |
| prep_times.append(t) |
| min_prep_time = min(prep_times) |
| if _debug: |
| print() |
| print('Calib. prep time = %.6fms' % ( |
| min_prep_time * MILLI_SECONDS)) |
| |
| # Time the calibration runs (doing CALIBRATION_LOOPS loops of |
| # .calibrate() method calls each) |
| for i in range(self.calibration_runs): |
| t = timer() |
| for i in calibration_loops: |
| calibrate() |
| t = timer() - t |
| self.overhead_times.append(t / CALIBRATION_LOOPS |
| - min_prep_time) |
| |
| # Check the measured times |
| min_overhead = min(self.overhead_times) |
| max_overhead = max(self.overhead_times) |
| if _debug: |
| print('Calib. overhead time = %.6fms' % ( |
| min_overhead * MILLI_SECONDS)) |
| if min_overhead < 0.0: |
| raise ValueError('calibration setup did not work') |
| if max_overhead - min_overhead > 0.1: |
| raise ValueError( |
| 'overhead calibration timing range too inaccurate: ' |
| '%r - %r' % (min_overhead, max_overhead)) |
| |
| def run(self): |
| |
| """ Run the test in two phases: first calibrate, then |
| do the actual test. Be careful to keep the calibration |
| timing low w/r to the test timing. |
| |
| """ |
| test = self.test |
| timer = self.get_timer() |
| |
| # Get calibration |
| min_overhead = min(self.overhead_times) |
| |
| # Test run |
| t = timer() |
| test() |
| t = timer() - t |
| if t < MIN_TEST_RUNTIME: |
| raise ValueError('warp factor too high: ' |
| 'test times are < 10ms') |
| eff_time = t - min_overhead |
| if eff_time < 0: |
| raise ValueError('wrong calibration') |
| self.last_timing = (eff_time, t, min_overhead) |
| self.times.append(eff_time) |
| |
| def calibrate(self): |
| |
| """ Calibrate the test. |
| |
| This method should execute everything that is needed to |
| setup and run the test - except for the actual operations |
| that you intend to measure. pybench uses this method to |
| measure the test implementation overhead. |
| |
| """ |
| return |
| |
| def test(self): |
| |
| """ Run the test. |
| |
| The test needs to run self.rounds executing |
| self.operations number of operations each. |
| |
| """ |
| return |
| |
| def stat(self): |
| |
| """ Return test run statistics as tuple: |
| |
| (minimum run time, |
| average run time, |
| total run time, |
| average time per operation, |
| minimum overhead time) |
| |
| """ |
| runs = len(self.times) |
| if runs == 0: |
| return 0.0, 0.0, 0.0, 0.0 |
| min_time = min(self.times) |
| total_time = sum(self.times) |
| avg_time = total_time / float(runs) |
| operation_avg = total_time / float(runs |
| * self.rounds |
| * self.operations) |
| if self.overhead_times: |
| min_overhead = min(self.overhead_times) |
| else: |
| min_overhead = self.last_timing[2] |
| return min_time, avg_time, total_time, operation_avg, min_overhead |
| |
| ### Load Setup |
| |
| # This has to be done after the definition of the Test class, since |
| # the Setup module will import subclasses using this class. |
| |
| import Setup |
| |
| ### Benchmark base class |
| |
| class Benchmark: |
| |
| # Name of the benchmark |
| name = '' |
| |
| # Number of benchmark rounds to run |
| rounds = 1 |
| |
| # Warp factor use to run the tests |
| warp = 1 # Warp factor |
| |
| # Average benchmark round time |
| roundtime = 0 |
| |
| # Benchmark version number as float x.yy |
| version = 2.1 |
| |
| # Produce verbose output ? |
| verbose = 0 |
| |
| # Dictionary with the machine details |
| machine_details = None |
| |
| # Timer used for the benchmark |
| timer = TIMER_PLATFORM_DEFAULT |
| |
| def __init__(self, name, verbose=None, timer=None, warp=None, |
| calibration_runs=None): |
| |
| if name: |
| self.name = name |
| else: |
| self.name = '%04i-%02i-%02i %02i:%02i:%02i' % \ |
| (time.localtime(time.time())[:6]) |
| if verbose is not None: |
| self.verbose = verbose |
| if timer is not None: |
| self.timer = timer |
| if warp is not None: |
| self.warp = warp |
| if calibration_runs is not None: |
| self.calibration_runs = calibration_runs |
| |
| # Init vars |
| self.tests = {} |
| if _debug: |
| print('Getting machine details...') |
| self.machine_details = get_machine_details() |
| |
| # Make .version an instance attribute to have it saved in the |
| # Benchmark pickle |
| self.version = self.version |
| |
| def get_timer(self): |
| |
| """ Return the timer function to use for the test. |
| |
| """ |
| return get_timer(self.timer) |
| |
| def compatible(self, other): |
| |
| """ Return 1/0 depending on whether the benchmark is |
| compatible with the other Benchmark instance or not. |
| |
| """ |
| if self.version != other.version: |
| return 0 |
| if (self.machine_details == other.machine_details and |
| self.timer != other.timer): |
| return 0 |
| if (self.calibration_runs == 0 and |
| other.calibration_runs != 0): |
| return 0 |
| if (self.calibration_runs != 0 and |
| other.calibration_runs == 0): |
| return 0 |
| return 1 |
| |
| def load_tests(self, setupmod, limitnames=None): |
| |
| # Add tests |
| if self.verbose: |
| print('Searching for tests ...') |
| print('--------------------------------------') |
| for testclass in setupmod.__dict__.values(): |
| if not hasattr(testclass, 'is_a_test'): |
| continue |
| name = testclass.__name__ |
| if name == 'Test': |
| continue |
| if (limitnames is not None and |
| limitnames.search(name) is None): |
| continue |
| self.tests[name] = testclass( |
| warp=self.warp, |
| calibration_runs=self.calibration_runs, |
| timer=self.timer) |
| l = sorted(self.tests) |
| if self.verbose: |
| for name in l: |
| print(' %s' % name) |
| print('--------------------------------------') |
| print(' %i tests found' % len(l)) |
| print() |
| |
| def calibrate(self): |
| |
| print('Calibrating tests. Please wait...', end=' ') |
| sys.stdout.flush() |
| if self.verbose: |
| print() |
| print() |
| print('Test min max') |
| print('-' * LINE) |
| tests = sorted(self.tests.items()) |
| for i in range(len(tests)): |
| name, test = tests[i] |
| test.calibrate_test() |
| if self.verbose: |
| print('%30s: %6.3fms %6.3fms' % \ |
| (name, |
| min(test.overhead_times) * MILLI_SECONDS, |
| max(test.overhead_times) * MILLI_SECONDS)) |
| if self.verbose: |
| print() |
| print('Done with the calibration.') |
| else: |
| print('done.') |
| print() |
| |
| def run(self): |
| |
| tests = sorted(self.tests.items()) |
| timer = self.get_timer() |
| print('Running %i round(s) of the suite at warp factor %i:' % \ |
| (self.rounds, self.warp)) |
| print() |
| self.roundtimes = [] |
| for i in range(self.rounds): |
| if self.verbose: |
| print(' Round %-25i effective absolute overhead' % (i+1)) |
| total_eff_time = 0.0 |
| for j in range(len(tests)): |
| name, test = tests[j] |
| if self.verbose: |
| print('%30s:' % name, end=' ') |
| test.run() |
| (eff_time, abs_time, min_overhead) = test.last_timing |
| total_eff_time = total_eff_time + eff_time |
| if self.verbose: |
| print(' %5.0fms %5.0fms %7.3fms' % \ |
| (eff_time * MILLI_SECONDS, |
| abs_time * MILLI_SECONDS, |
| min_overhead * MILLI_SECONDS)) |
| self.roundtimes.append(total_eff_time) |
| if self.verbose: |
| print(' ' |
| ' ------------------------------') |
| print(' ' |
| ' Totals: %6.0fms' % |
| (total_eff_time * MILLI_SECONDS)) |
| print() |
| else: |
| print('* Round %i done in %.3f seconds.' % (i+1, |
| total_eff_time)) |
| print() |
| |
| def stat(self): |
| |
| """ Return benchmark run statistics as tuple: |
| |
| (minimum round time, |
| average round time, |
| maximum round time) |
| |
| XXX Currently not used, since the benchmark does test |
| statistics across all rounds. |
| |
| """ |
| runs = len(self.roundtimes) |
| if runs == 0: |
| return 0.0, 0.0 |
| min_time = min(self.roundtimes) |
| total_time = sum(self.roundtimes) |
| avg_time = total_time / float(runs) |
| max_time = max(self.roundtimes) |
| return (min_time, avg_time, max_time) |
| |
| def print_header(self, title='Benchmark'): |
| |
| print('-' * LINE) |
| print('%s: %s' % (title, self.name)) |
| print('-' * LINE) |
| print() |
| print(' Rounds: %s' % self.rounds) |
| print(' Warp: %s' % self.warp) |
| print(' Timer: %s' % self.timer) |
| print() |
| if self.machine_details: |
| print_machine_details(self.machine_details, indent=' ') |
| print() |
| |
| def print_benchmark(self, hidenoise=0, limitnames=None): |
| |
| print('Test ' |
| ' minimum average operation overhead') |
| print('-' * LINE) |
| tests = sorted(self.tests.items()) |
| total_min_time = 0.0 |
| total_avg_time = 0.0 |
| for name, test in tests: |
| if (limitnames is not None and |
| limitnames.search(name) is None): |
| continue |
| (min_time, |
| avg_time, |
| total_time, |
| op_avg, |
| min_overhead) = test.stat() |
| total_min_time = total_min_time + min_time |
| total_avg_time = total_avg_time + avg_time |
| print('%30s: %5.0fms %5.0fms %6.2fus %7.3fms' % \ |
| (name, |
| min_time * MILLI_SECONDS, |
| avg_time * MILLI_SECONDS, |
| op_avg * MICRO_SECONDS, |
| min_overhead *MILLI_SECONDS)) |
| print('-' * LINE) |
| print('Totals: ' |
| ' %6.0fms %6.0fms' % |
| (total_min_time * MILLI_SECONDS, |
| total_avg_time * MILLI_SECONDS, |
| )) |
| print() |
| |
| def print_comparison(self, compare_to, hidenoise=0, limitnames=None): |
| |
| # Check benchmark versions |
| if compare_to.version != self.version: |
| print('* Benchmark versions differ: ' |
| 'cannot compare this benchmark to "%s" !' % |
| compare_to.name) |
| print() |
| self.print_benchmark(hidenoise=hidenoise, |
| limitnames=limitnames) |
| return |
| |
| # Print header |
| compare_to.print_header('Comparing with') |
| print('Test ' |
| ' minimum run-time average run-time') |
| print(' ' |
| ' this other diff this other diff') |
| print('-' * LINE) |
| |
| # Print test comparisons |
| tests = sorted(self.tests.items()) |
| total_min_time = other_total_min_time = 0.0 |
| total_avg_time = other_total_avg_time = 0.0 |
| benchmarks_compatible = self.compatible(compare_to) |
| tests_compatible = 1 |
| for name, test in tests: |
| if (limitnames is not None and |
| limitnames.search(name) is None): |
| continue |
| (min_time, |
| avg_time, |
| total_time, |
| op_avg, |
| min_overhead) = test.stat() |
| total_min_time = total_min_time + min_time |
| total_avg_time = total_avg_time + avg_time |
| try: |
| other = compare_to.tests[name] |
| except KeyError: |
| other = None |
| if other is None: |
| # Other benchmark doesn't include the given test |
| min_diff, avg_diff = 'n/a', 'n/a' |
| other_min_time = 0.0 |
| other_avg_time = 0.0 |
| tests_compatible = 0 |
| else: |
| (other_min_time, |
| other_avg_time, |
| other_total_time, |
| other_op_avg, |
| other_min_overhead) = other.stat() |
| other_total_min_time = other_total_min_time + other_min_time |
| other_total_avg_time = other_total_avg_time + other_avg_time |
| if (benchmarks_compatible and |
| test.compatible(other)): |
| # Both benchmark and tests are comparable |
| min_diff = ((min_time * self.warp) / |
| (other_min_time * other.warp) - 1.0) |
| avg_diff = ((avg_time * self.warp) / |
| (other_avg_time * other.warp) - 1.0) |
| if hidenoise and abs(min_diff) < 10.0: |
| min_diff = '' |
| else: |
| min_diff = '%+5.1f%%' % (min_diff * PERCENT) |
| if hidenoise and abs(avg_diff) < 10.0: |
| avg_diff = '' |
| else: |
| avg_diff = '%+5.1f%%' % (avg_diff * PERCENT) |
| else: |
| # Benchmark or tests are not comparable |
| min_diff, avg_diff = 'n/a', 'n/a' |
| tests_compatible = 0 |
| print('%30s: %5.0fms %5.0fms %7s %5.0fms %5.0fms %7s' % \ |
| (name, |
| min_time * MILLI_SECONDS, |
| other_min_time * MILLI_SECONDS * compare_to.warp / self.warp, |
| min_diff, |
| avg_time * MILLI_SECONDS, |
| other_avg_time * MILLI_SECONDS * compare_to.warp / self.warp, |
| avg_diff)) |
| print('-' * LINE) |
| |
| # Summarise test results |
| if not benchmarks_compatible or not tests_compatible: |
| min_diff, avg_diff = 'n/a', 'n/a' |
| else: |
| if other_total_min_time != 0.0: |
| min_diff = '%+5.1f%%' % ( |
| ((total_min_time * self.warp) / |
| (other_total_min_time * compare_to.warp) - 1.0) * PERCENT) |
| else: |
| min_diff = 'n/a' |
| if other_total_avg_time != 0.0: |
| avg_diff = '%+5.1f%%' % ( |
| ((total_avg_time * self.warp) / |
| (other_total_avg_time * compare_to.warp) - 1.0) * PERCENT) |
| else: |
| avg_diff = 'n/a' |
| print('Totals: ' |
| ' %5.0fms %5.0fms %7s %5.0fms %5.0fms %7s' % |
| (total_min_time * MILLI_SECONDS, |
| (other_total_min_time * compare_to.warp/self.warp |
| * MILLI_SECONDS), |
| min_diff, |
| total_avg_time * MILLI_SECONDS, |
| (other_total_avg_time * compare_to.warp/self.warp |
| * MILLI_SECONDS), |
| avg_diff |
| )) |
| print() |
| print('(this=%s, other=%s)' % (self.name, |
| compare_to.name)) |
| print() |
| |
| class PyBenchCmdline(Application): |
| |
| header = ("PYBENCH - a benchmark test suite for Python " |
| "interpreters/compilers.") |
| |
| version = __version__ |
| |
| debug = _debug |
| |
| options = [ArgumentOption('-n', |
| 'number of rounds', |
| Setup.Number_of_rounds), |
| ArgumentOption('-f', |
| 'save benchmark to file arg', |
| ''), |
| ArgumentOption('-c', |
| 'compare benchmark with the one in file arg', |
| ''), |
| ArgumentOption('-s', |
| 'show benchmark in file arg, then exit', |
| ''), |
| ArgumentOption('-w', |
| 'set warp factor to arg', |
| Setup.Warp_factor), |
| ArgumentOption('-t', |
| 'run only tests with names matching arg', |
| ''), |
| ArgumentOption('-C', |
| 'set the number of calibration runs to arg', |
| CALIBRATION_RUNS), |
| SwitchOption('-d', |
| 'hide noise in comparisons', |
| 0), |
| SwitchOption('-v', |
| 'verbose output (not recommended)', |
| 0), |
| SwitchOption('--with-gc', |
| 'enable garbage collection', |
| 0), |
| SwitchOption('--with-syscheck', |
| 'use default sys check interval', |
| 0), |
| ArgumentOption('--timer', |
| 'use given timer', |
| TIMER_PLATFORM_DEFAULT), |
| ] |
| |
| about = """\ |
| The normal operation is to run the suite and display the |
| results. Use -f to save them for later reuse or comparisons. |
| |
| Available timers: |
| |
| time.time |
| time.clock |
| systimes.processtime |
| |
| Examples: |
| |
| python2.1 pybench.py -f p21.pybench |
| python2.5 pybench.py -f p25.pybench |
| python pybench.py -s p25.pybench -c p21.pybench |
| """ |
| copyright = __copyright__ |
| |
| def main(self): |
| |
| rounds = self.values['-n'] |
| reportfile = self.values['-f'] |
| show_bench = self.values['-s'] |
| compare_to = self.values['-c'] |
| hidenoise = self.values['-d'] |
| warp = int(self.values['-w']) |
| withgc = self.values['--with-gc'] |
| limitnames = self.values['-t'] |
| if limitnames: |
| if _debug: |
| print('* limiting test names to one with substring "%s"' % \ |
| limitnames) |
| limitnames = re.compile(limitnames, re.I) |
| else: |
| limitnames = None |
| verbose = self.verbose |
| withsyscheck = self.values['--with-syscheck'] |
| calibration_runs = self.values['-C'] |
| timer = self.values['--timer'] |
| |
| print('-' * LINE) |
| print('PYBENCH %s' % __version__) |
| print('-' * LINE) |
| print('* using %s %s' % ( |
| getattr(platform, 'python_implementation', lambda:'Python')(), |
| ' '.join(sys.version.split()))) |
| |
| # Switch off garbage collection |
| if not withgc: |
| try: |
| import gc |
| except ImportError: |
| print('* Python version doesn\'t support garbage collection') |
| else: |
| try: |
| gc.disable() |
| except NotImplementedError: |
| print('* Python version doesn\'t support gc.disable') |
| else: |
| print('* disabled garbage collection') |
| |
| # "Disable" sys check interval |
| if not withsyscheck: |
| # Too bad the check interval uses an int instead of a long... |
| value = 2147483647 |
| try: |
| sys.setcheckinterval(value) |
| except (AttributeError, NotImplementedError): |
| print('* Python version doesn\'t support sys.setcheckinterval') |
| else: |
| print('* system check interval set to maximum: %s' % value) |
| |
| if timer == TIMER_SYSTIMES_PROCESSTIME: |
| import systimes |
| print('* using timer: systimes.processtime (%s)' % \ |
| systimes.SYSTIMES_IMPLEMENTATION) |
| else: |
| print('* using timer: %s' % timer) |
| |
| print() |
| |
| if compare_to: |
| try: |
| f = open(compare_to,'rb') |
| bench = pickle.load(f) |
| bench.name = compare_to |
| f.close() |
| compare_to = bench |
| except IOError as reason: |
| print('* Error opening/reading file %s: %s' % ( |
| repr(compare_to), |
| reason)) |
| compare_to = None |
| |
| if show_bench: |
| try: |
| f = open(show_bench,'rb') |
| bench = pickle.load(f) |
| bench.name = show_bench |
| f.close() |
| bench.print_header() |
| if compare_to: |
| bench.print_comparison(compare_to, |
| hidenoise=hidenoise, |
| limitnames=limitnames) |
| else: |
| bench.print_benchmark(hidenoise=hidenoise, |
| limitnames=limitnames) |
| except IOError as reason: |
| print('* Error opening/reading file %s: %s' % ( |
| repr(show_bench), |
| reason)) |
| print() |
| return |
| |
| if reportfile: |
| print('Creating benchmark: %s (rounds=%i, warp=%i)' % \ |
| (reportfile, rounds, warp)) |
| print() |
| |
| # Create benchmark object |
| bench = Benchmark(reportfile, |
| verbose=verbose, |
| timer=timer, |
| warp=warp, |
| calibration_runs=calibration_runs) |
| bench.rounds = rounds |
| bench.load_tests(Setup, limitnames=limitnames) |
| try: |
| bench.calibrate() |
| bench.run() |
| except KeyboardInterrupt: |
| print() |
| print('*** KeyboardInterrupt -- Aborting') |
| print() |
| return |
| bench.print_header() |
| if compare_to: |
| bench.print_comparison(compare_to, |
| hidenoise=hidenoise, |
| limitnames=limitnames) |
| else: |
| bench.print_benchmark(hidenoise=hidenoise, |
| limitnames=limitnames) |
| |
| # Ring bell |
| sys.stderr.write('\007') |
| |
| if reportfile: |
| try: |
| f = open(reportfile,'wb') |
| bench.name = reportfile |
| pickle.dump(bench,f) |
| f.close() |
| except IOError as reason: |
| print('* Error opening/writing reportfile') |
| except IOError as reason: |
| print('* Error opening/writing reportfile %s: %s' % ( |
| reportfile, |
| reason)) |
| print() |
| |
| if __name__ == '__main__': |
| PyBenchCmdline() |