#!/usr/bin/env python # Copyright (c) 2013 The Chromium Authors. All rights reserved. # Use of this source code is governed by a BSD-style license that can be # found in the LICENSE file. """Run Performance Test Bisect Tool This script is used by a trybot to run the src/tools/bisect-perf-regression.py script with the parameters specified in run-bisect-perf-regression.cfg. It will check out a copy of the depot in a subdirectory 'bisect' of the working directory provided, and run the bisect-perf-regression.py script there. """ import imp import optparse import os import subprocess import sys import traceback import bisect_utils bisect = imp.load_source('bisect-perf-regression', os.path.join(os.path.abspath(os.path.dirname(sys.argv[0])), 'bisect-perf-regression.py')) CROS_BOARD_ENV = 'BISECT_CROS_BOARD' CROS_IP_ENV = 'BISECT_CROS_IP' class Goma(object): def __init__(self, path_to_goma): self._abs_path_to_goma = None self._abs_path_to_goma_file = None if path_to_goma: self._abs_path_to_goma = os.path.abspath(path_to_goma) self._abs_path_to_goma_file = self._GetExecutablePath( self._abs_path_to_goma) def __enter__(self): if self._HasGOMAPath(): self._SetupAndStart() return self def __exit__(self, *_): if self._HasGOMAPath(): self._Stop() def _HasGOMAPath(self): return bool(self._abs_path_to_goma) def _GetExecutablePath(self, path_to_goma): if os.name == 'nt': return os.path.join(path_to_goma, 'goma_ctl.bat') else: return os.path.join(path_to_goma, 'goma_ctl.sh') def _SetupEnvVars(self): if os.name == 'nt': os.environ['CC'] = (os.path.join(self._abs_path_to_goma, 'gomacc.exe') + ' cl.exe') os.environ['CXX'] = (os.path.join(self._abs_path_to_goma, 'gomacc.exe') + ' cl.exe') else: os.environ['PATH'] = os.pathsep.join([self._abs_path_to_goma, os.environ['PATH']]) def _SetupAndStart(self): """Sets up GOMA and launches it. Args: path_to_goma: Path to goma directory. Returns: True if successful.""" self._SetupEnvVars() # Sometimes goma is lingering around if something went bad on a previous # run. Stop it before starting a new process. Can ignore the return code # since it will return an error if it wasn't running. self._Stop() if subprocess.call([self._abs_path_to_goma_file, 'start']): raise RuntimeError('GOMA failed to start.') def _Stop(self): subprocess.call([self._abs_path_to_goma_file, 'stop']) def _LoadConfigFile(path_to_file): """Attempts to load the specified config file as a module and grab the global config dict. Args: path_to_file: Path to the file. Returns: The config dict which should be formatted as follows: {'command': string, 'good_revision': string, 'bad_revision': string 'metric': string, etc...}. Returns None on failure. """ try: local_vars = {} execfile(path_to_file, local_vars) return local_vars['config'] except: print traceback.print_exc() print return {} def _OutputFailedResults(text_to_print): bisect_utils.OutputAnnotationStepStart('Results - Failed') print print text_to_print print bisect_utils.OutputAnnotationStepClosed() def _CreateBisectOptionsFromConfig(config): opts_dict = {} opts_dict['command'] = config['command'] opts_dict['metric'] = config['metric'] if config['repeat_count']: opts_dict['repeat_test_count'] = int(config['repeat_count']) if config['truncate_percent']: opts_dict['truncate_percent'] = int(config['truncate_percent']) if config['max_time_minutes']: opts_dict['max_time_minutes'] = int(config['max_time_minutes']) if config.has_key('use_goma'): opts_dict['use_goma'] = config['use_goma'] opts_dict['build_preference'] = 'ninja' opts_dict['output_buildbot_annotations'] = True if '--browser=cros' in config['command']: opts_dict['target_platform'] = 'cros' if os.environ[CROS_BOARD_ENV] and os.environ[CROS_IP_ENV]: opts_dict['cros_board'] = os.environ[CROS_BOARD_ENV] opts_dict['cros_remote_ip'] = os.environ[CROS_IP_ENV] else: raise RuntimeError('Cros build selected, but BISECT_CROS_IP or' 'BISECT_CROS_BOARD undefined.') elif 'android' in config['command']: if 'android-chrome' in config['command']: opts_dict['target_platform'] = 'android-chrome' else: opts_dict['target_platform'] = 'android' return bisect.BisectOptions.FromDict(opts_dict) def _RunPerformanceTest(config, path_to_file): # Bisect script expects to be run from src os.chdir(os.path.join(path_to_file, '..')) bisect_utils.OutputAnnotationStepStart('Building With Patch') opts = _CreateBisectOptionsFromConfig(config) b = bisect.BisectPerformanceMetrics(None, opts) if bisect_utils.RunGClient(['runhooks']): raise RuntimeError('Failed to run gclient runhooks') if not b.BuildCurrentRevision('chromium'): raise RuntimeError('Patched version failed to build.') bisect_utils.OutputAnnotationStepClosed() bisect_utils.OutputAnnotationStepStart('Running With Patch') results_with_patch = b.RunPerformanceTestAndParseResults( opts.command, opts.metric, reset_on_first_run=True, results_label='Patch') if results_with_patch[1]: raise RuntimeError('Patched version failed to run performance test.') bisect_utils.OutputAnnotationStepClosed() bisect_utils.OutputAnnotationStepStart('Reverting Patch') if bisect_utils.RunGClient(['revert']): raise RuntimeError('Failed to run gclient runhooks') bisect_utils.OutputAnnotationStepClosed() bisect_utils.OutputAnnotationStepStart('Building Without Patch') if bisect_utils.RunGClient(['runhooks']): raise RuntimeError('Failed to run gclient runhooks') if not b.BuildCurrentRevision('chromium'): raise RuntimeError('Unpatched version failed to build.') bisect_utils.OutputAnnotationStepClosed() bisect_utils.OutputAnnotationStepStart('Running Without Patch') results_without_patch = b.RunPerformanceTestAndParseResults( opts.command, opts.metric, upload_on_last_run=True, results_label='ToT') if results_without_patch[1]: raise RuntimeError('Unpatched version failed to run performance test.') # Find the link to the cloud stored results file. output = results_without_patch[2] cloud_file_link = [t for t in output.splitlines() if 'storage.googleapis.com/chromium-telemetry/html-results/' in t] if cloud_file_link: # What we're getting here is basically "View online at http://..." so parse # out just the url portion. cloud_file_link = cloud_file_link[0] cloud_file_link = [t for t in cloud_file_link.split(' ') if 'storage.googleapis.com/chromium-telemetry/html-results/' in t] assert cloud_file_link, "Couldn't parse url from output." cloud_file_link = cloud_file_link[0] else: cloud_file_link = '' # Calculate the % difference in the means of the 2 runs. percent_diff_in_means = (results_with_patch[0]['mean'] / max(0.0001, results_without_patch[0]['mean'])) * 100.0 - 100.0 std_err = bisect.CalculatePooledStandardError( [results_with_patch[0]['values'], results_without_patch[0]['values']]) bisect_utils.OutputAnnotationStepClosed() bisect_utils.OutputAnnotationStepStart('Results - %.02f +- %0.02f delta' % (percent_diff_in_means, std_err)) print ' %s %s %s' % (''.center(10, ' '), 'Mean'.center(20, ' '), 'Std. Error'.center(20, ' ')) print ' %s %s %s' % ('Patch'.center(10, ' '), ('%.02f' % results_with_patch[0]['mean']).center(20, ' '), ('%.02f' % results_with_patch[0]['std_err']).center(20, ' ')) print ' %s %s %s' % ('No Patch'.center(10, ' '), ('%.02f' % results_without_patch[0]['mean']).center(20, ' '), ('%.02f' % results_without_patch[0]['std_err']).center(20, ' ')) if cloud_file_link: bisect_utils.OutputAnnotationStepLink('HTML Results', cloud_file_link) bisect_utils.OutputAnnotationStepClosed() def _SetupAndRunPerformanceTest(config, path_to_file, path_to_goma): """Attempts to build and run the current revision with and without the current patch, with the parameters passed in. Args: config: The config read from run-perf-test.cfg. path_to_file: Path to the bisect-perf-regression.py script. path_to_goma: Path to goma directory. Returns: 0 on success, otherwise 1. """ try: with Goma(path_to_goma) as goma: config['use_goma'] = bool(path_to_goma) _RunPerformanceTest(config, path_to_file) return 0 except RuntimeError, e: bisect_utils.OutputAnnotationStepClosed() _OutputFailedResults('Error: %s' % e.message) return 1 def _RunBisectionScript(config, working_directory, path_to_file, path_to_goma, path_to_extra_src, dry_run): """Attempts to execute src/tools/bisect-perf-regression.py with the parameters passed in. Args: config: A dict containing the parameters to pass to the script. working_directory: A working directory to provide to the bisect-perf-regression.py script, where it will store it's own copy of the depot. path_to_file: Path to the bisect-perf-regression.py script. path_to_goma: Path to goma directory. path_to_extra_src: Path to extra source file. dry_run: Do a dry run, skipping sync, build, and performance testing steps. Returns: 0 on success, otherwise 1. """ bisect_utils.OutputAnnotationStepStart('Config') print for k, v in config.iteritems(): print ' %s : %s' % (k, v) print bisect_utils.OutputAnnotationStepClosed() cmd = ['python', os.path.join(path_to_file, 'bisect-perf-regression.py'), '-c', config['command'], '-g', config['good_revision'], '-b', config['bad_revision'], '-m', config['metric'], '--working_directory', working_directory, '--output_buildbot_annotations'] if config['repeat_count']: cmd.extend(['-r', config['repeat_count']]) if config['truncate_percent']: cmd.extend(['-t', config['truncate_percent']]) if config['max_time_minutes']: cmd.extend(['--max_time_minutes', config['max_time_minutes']]) cmd.extend(['--build_preference', 'ninja']) if '--browser=cros' in config['command']: cmd.extend(['--target_platform', 'cros']) if os.environ[CROS_BOARD_ENV] and os.environ[CROS_IP_ENV]: cmd.extend(['--cros_board', os.environ[CROS_BOARD_ENV]]) cmd.extend(['--cros_remote_ip', os.environ[CROS_IP_ENV]]) else: print 'Error: Cros build selected, but BISECT_CROS_IP or'\ 'BISECT_CROS_BOARD undefined.' print return 1 if 'android' in config['command']: if 'android-chrome' in config['command']: cmd.extend(['--target_platform', 'android-chrome']) else: cmd.extend(['--target_platform', 'android']) if path_to_goma: cmd.append('--use_goma') if path_to_extra_src: cmd.extend(['--extra_src', path_to_extra_src]) if dry_run: cmd.extend(['--debug_ignore_build', '--debug_ignore_sync', '--debug_ignore_perf_test']) cmd = [str(c) for c in cmd] with Goma(path_to_goma) as goma: return_code = subprocess.call(cmd) if return_code: print 'Error: bisect-perf-regression.py returned with error %d' %\ return_code print return return_code def main(): usage = ('%prog [options] [-- chromium-options]\n' 'Used by a trybot to run the bisection script using the parameters' ' provided in the run-bisect-perf-regression.cfg file.') parser = optparse.OptionParser(usage=usage) parser.add_option('-w', '--working_directory', type='str', help='A working directory to supply to the bisection ' 'script, which will use it as the location to checkout ' 'a copy of the chromium depot.') parser.add_option('-p', '--path_to_goma', type='str', help='Path to goma directory. If this is supplied, goma ' 'builds will be enabled.') parser.add_option('--extra_src', type='str', help='Path to extra source file. If this is supplied, ' 'bisect script will use this to override default behavior.') parser.add_option('--dry_run', action="store_true", help='The script will perform the full bisect, but ' 'without syncing, building, or running the performance ' 'tests.') (opts, args) = parser.parse_args() path_to_current_directory = os.path.abspath(os.path.dirname(sys.argv[0])) path_to_bisect_cfg = os.path.join(path_to_current_directory, 'run-bisect-perf-regression.cfg') config = _LoadConfigFile(path_to_bisect_cfg) # Check if the config is empty config_has_values = [v for v in config.values() if v] if config and config_has_values: if not opts.working_directory: print 'Error: missing required parameter: --working_directory' print parser.print_help() return 1 return _RunBisectionScript(config, opts.working_directory, path_to_current_directory, opts.path_to_goma, opts.extra_src, opts.dry_run) else: perf_cfg_files = ['run-perf-test.cfg', os.path.join('..', 'third_party', 'WebKit', 'Tools', 'run-perf-test.cfg')] for current_perf_cfg_file in perf_cfg_files: path_to_perf_cfg = os.path.join( os.path.abspath(os.path.dirname(sys.argv[0])), current_perf_cfg_file) config = _LoadConfigFile(path_to_perf_cfg) config_has_values = [v for v in config.values() if v] if config and config_has_values: return _SetupAndRunPerformanceTest(config, path_to_current_directory, opts.path_to_goma) print 'Error: Could not load config file. Double check your changes to '\ 'run-bisect-perf-regression.cfg/run-perf-test.cfg for syntax errors.' print return 1 if __name__ == '__main__': sys.exit(main())