def _RunBuildStepForPerformanceTest(bisect_instance, build_string, revision):
if revision:
bisect_utils.OutputAnnotationStepStart('Syncing [%s]' % revision)
if not source_control.SyncToRevision(revision, 'gclient'):
raise RuntimeError('Failed to sync to [%s].' % revision)
bisect_utils.OutputAnnotationStepClosed()
bisect_utils.OutputAnnotationStepStart(build_string)
if bisect_utils.RunGClient(['runhooks']):
raise RuntimeError('Failed to run gclient runhooks')
if not bisect_instance.ObtainBuild('chromium'):
raise RuntimeError('Patched version failed to build.')
bisect_utils.OutputAnnotationStepClosed()
def _PrintConfigStep(config):
"""Prints out the given config, along with Buildbot annotations."""
bisect_utils.OutputAnnotationStepStart('Config')
print
for k, v in config.iteritems():
print ' %s : %s' % (k, v)
print
bisect_utils.OutputAnnotationStepClosed()
def _ParseAndOutputCloudLinks(results_without_patch, results_with_patch,
annotations_dict):
cloud_links_without_patch = _ParseCloudLinksFromOutput(
results_without_patch[2])
cloud_links_with_patch = _ParseCloudLinksFromOutput(results_with_patch[2])
cloud_file_link = (cloud_links_without_patch['html-results'][0]
if cloud_links_without_patch['html-results'] else '')
profiler_file_links_with_patch = cloud_links_with_patch['profiler']
profiler_file_links_without_patch = cloud_links_without_patch['profiler']
# Calculate the % difference in the means of the 2 runs.
percent_diff_in_means = None
std_err = None
if (results_with_patch[0].has_key('mean')
and results_with_patch[0].has_key('values')):
percent_diff_in_means = (results_with_patch[0]['mean'] / max(
0.0001, results_without_patch[0]['mean'])) * 100.0 - 100.0
std_err = math_utils.PooledStandardError([
results_with_patch[0]['values'], results_without_patch[0]['values']
])
if percent_diff_in_means is not None and std_err is not None:
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()
elif cloud_file_link:
bisect_utils.OutputAnnotationStepLink('HTML Results', cloud_file_link)
if profiler_file_links_with_patch and profiler_file_links_without_patch:
for i in xrange(len(profiler_file_links_with_patch)):
bisect_utils.OutputAnnotationStepLink(
'%s[%d]' % (annotations_dict.get('profiler_link1'), i),
profiler_file_links_with_patch[i])
for i in xrange(len(profiler_file_links_without_patch)):
bisect_utils.OutputAnnotationStepLink(
'%s[%d]' % (annotations_dict.get('profiler_link2'), i),
profiler_file_links_without_patch[i])
def _RunPerformanceTest(config):
"""Runs a performance test with and without the current patch.
Args:
config: Contents of the config file, a dictionary.
Attempts to build and run the current revision with and without the
current patch, with the parameters passed in.
"""
# Bisect script expects to be run from the src directory
os.chdir(SRC_DIR)
opts = _CreateBisectOptionsFromConfig(config)
revisions = _ResolveRevisionsFromConfig(config)
annotations_dict = _GetStepAnnotationStringsDict(config)
b = bisect_perf_regression.BisectPerformanceMetrics(opts, os.getcwd())
_RunBuildStepForPerformanceTest(b,
annotations_dict.get('build1'),
annotations_dict.get('sync1'),
revisions[0])
results_with_patch = _RunCommandStepForPerformanceTest(
b, opts, True, True, annotations_dict['results_label1'],
annotations_dict['run1'])
bisect_utils.OutputAnnotationStepStart('Reverting Patch')
# TODO: When this is re-written to recipes, this should use bot_update's
# revert mechanism to fully revert the client. But for now, since we know that
# the perf try bot currently only supports src/ and src/third_party/WebKit, we
# simply reset those two directories.
bisect_utils.CheckRunGit(['reset', '--hard'])
bisect_utils.CheckRunGit(['reset', '--hard'],
os.path.join('third_party', 'WebKit'))
bisect_utils.OutputAnnotationStepClosed()
_RunBuildStepForPerformanceTest(b,
annotations_dict.get('build2'),
annotations_dict.get('sync2'),
revisions[1])
results_without_patch = _RunCommandStepForPerformanceTest(
b, opts, False, True, annotations_dict['results_label2'],
annotations_dict['run2'])
# Find the link to the cloud stored results file.
_ParseAndOutputCloudLinks(
results_without_patch, results_with_patch, annotations_dict)
def _OutputOverallResults(results):
"""Creates results step and prints results on buildbot job."""
test_status = all(current_value == True
for current_value in results.values())
bisect_utils.OutputAnnotationStepStart(
'Results - %s' % ('Passed' if test_status else 'Failed'))
print
print 'Results of benchmarks:'
print
for benchmark, result in results.iteritems():
print '%s: %s' % (benchmark, 'Passed' if result else 'Failed')
if not test_status:
bisect_utils.OutputAnnotationStepFailure()
bisect_utils.OutputAnnotationStepClosed()
# Returns 0 for success and 1 for failure.
return 0 if test_status else 1
def _RunCommandStepForPerformanceTest(bisect_instance, opts,
reset_on_first_run, upload_on_last_run,
results_label, run_string):
bisect_utils.OutputAnnotationStepStart(run_string)
results = bisect_instance.RunPerformanceTestAndParseResults(
opts.command,
opts.metric,
reset_on_first_run=reset_on_first_run,
upload_on_last_run=upload_on_last_run,
results_label=results_label,
allow_flakes=False)
if results[1]:
raise RuntimeError('Patched version failed to run performance test.')
bisect_utils.OutputAnnotationStepClosed()
return results
def _RunBenchmark(bisect_instance, opts, bot_name, benchmark_name):
"""Runs a Telemetry benchmark."""
bisect_utils.OutputAnnotationStepStart(benchmark_name)
command_to_run = _GuessTelemetryTestCommand(bot_name, benchmark_name)
args = shlex.split(command_to_run, posix=not bisect_utils.IsWindowsHost())
output, return_code = bisect_utils.RunProcessAndRetrieveOutput(
args, SRC_DIR)
# A value other than 0 indicates that the test couldn't be run, and results
# should also include an error message.
if return_code:
print(
'Error: Something went wrong running the benchmark: %s.'
'Please review the command line:%s\n\n%s' %
(benchmark_name, command_to_run, output))
bisect_utils.OutputAnnotationStepFailure()
print output
bisect_utils.OutputAnnotationStepClosed()
# results[1] contains the return code from subprocess that executes test
# command, On successful test run it contains 0 otherwise any non-zero value.
return return_code == 0
def _RunBenchmarksForCommitQueue(config):
"""Runs Telemetry benchmark for the commit queue."""
os.chdir(SRC_DIR)
# To determine the bot platform by reading buildbot name from environment
# variable.
bot_name = os.environ.get(BUILDBOT_BUILDERNAME)
if not bot_name:
bot_name = sys.platform
bot_name = bot_name.split('_')[0]
affected_benchmarks = _GetAffectedBenchmarkModuleNames()
# Abort if there are no changes to benchmark any existing benchmark files.
if not affected_benchmarks:
bisect_utils.OutputAnnotationStepStart('Results')
print
print(
'There are no modification to Telemetry benchmarks,'
' aborting the try job.')
bisect_utils.OutputAnnotationStepClosed()
return 0
# Bisect script expects to be run from the src directory
# Gets required options inorder to create BisectPerformanceMetrics instance.
# Since command is a required arg in BisectPerformanceMetrics, we just create
# a dummy command for now.
opts = _GetConfigBasedOnPlatform(config, bot_name, test_name='')
annotations_dict = _GetStepAnnotationStringsDict(config)
b = bisect_perf_regression.BisectPerformanceMetrics(opts, os.getcwd())
_RunBuildStepForPerformanceTest(b, annotations_dict.get('build1'),
annotations_dict.get('sync1'), None)
available_benchmarks = _ListAvailableBenchmarks(bot_name)
overall_results = {}
for affected_benchmark in affected_benchmarks:
for benchmark in available_benchmarks:
if (benchmark.startswith(affected_benchmark)
and not benchmark.endswith('reference')):
overall_results[benchmark] = _RunBenchmark(
b, opts, bot_name, benchmark)
return _OutputOverallResults(overall_results)
def _OutputFailedResults(text_to_print):
bisect_utils.OutputAnnotationStepStart('Results - Failed')
print
print text_to_print
print
bisect_utils.OutputAnnotationStepClosed()
def _RunPerformanceTest(config, path_to_file):
"""Runs a performance test with and without the current patch.
Args:
config: Contents of the config file, a dictionary.
path_to_file: Path to the bisect-perf-regression.py script.
Attempts to build and run the current revision with and without the
current patch, with the parameters passed in.
"""
# Bisect script expects to be run from the src directory
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')
# TODO: When this is re-written to recipes, this should use bot_update's
# revert mechanism to fully revert the client. But for now, since we know that
# the perf trybot currently only supports src/ and src/third_party/WebKit, we
# simply reset those two directories.
bisect_utils.CheckRunGit(['reset', '--hard'])
bisect_utils.CheckRunGit(['reset', '--hard'],
os.path.join('third_party', 'WebKit'))
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 = None
std_err = None
if (results_with_patch[0].has_key('mean')
and results_with_patch[0].has_key('values')):
percent_diff_in_means = (results_with_patch[0]['mean'] / max(
0.0001, results_without_patch[0]['mean'])) * 100.0 - 100.0
std_err = math_utils.PooledStandardError([
results_with_patch[0]['values'], results_without_patch[0]['values']
])
bisect_utils.OutputAnnotationStepClosed()
if percent_diff_in_means is not None and std_err is not None:
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()
elif cloud_file_link:
bisect_utils.OutputAnnotationStepLink('HTML Results', cloud_file_link)