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collect_metrics.py
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collect_metrics.py
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import os
import argparse
import json
import re
import shutil
from pathlib import Path
parser = argparse.ArgumentParser(description='Collect all metrics data produced by clang -ftime-trace.')
parser.add_argument('-b', '--build_directory', help="The directory in which targets were compiled", required=True)
parser.add_argument('-t', '--target', help="Expected target, can be passed multiple times. Targets not passed will be ignored. Passed targets that are not found are considered a failed build.", action="append")
parser.add_argument('-v', '--verbose', help="Print verbose information", action="store_true")
parser.add_argument('-p', '--pretty', help="Output collected data into a pretty json file (using indentation and new-lines)", action="store_true")
args = parser.parse_args()
def is_expected_target(target_name):
return not args.target or target_name in args.target
def get_missing_targets(found_targets):
return [] if not args.target else [target for target in args.target if target not in found_targets]
def verbose_print(msg):
if args.verbose:
print(msg)
def verbose_print_ignore_once(ignored):
if ignored not in verbose_print_ignore_once.ignored:
verbose_print_ignore_once.ignored.append(ignored)
verbose_print('\t\tIgnoring unkown "{}"'.format(ignored))
verbose_print_ignore_once.ignored = []
def is_dla_file(header):
return '/dla/' in Path(header).as_posix()
def is_dla_symbol(symbol):
return 'dla::' in symbol
def remove_prefix(string, prefix):
return string[len(prefix):] if string.startswith(prefix) else string
def remove_suffix(string, suffix):
return string[:-len(suffix)] if string.endswith(suffix) else string
collected_data_tier_1 = dict()
collected_data_tier_2 = dict()
found_targets = []
target_name_regex = re.compile(r'([\w\-. ]+)\.dir')
metrics_folder = Path(args.build_directory) / Path("metrics")
if not metrics_folder.exists():
os.mkdir(metrics_folder)
metrics_tier_3_folder = metrics_folder / Path("tier_3")
if not metrics_tier_3_folder.exists():
os.mkdir(metrics_tier_3_folder)
verbose_print('Discovering all metrics data in "{}"...'.format(args.build_directory))
json_file_paths = Path(args.build_directory).glob('**/*.json')
for json_file_path in json_file_paths:
if metrics_folder in json_file_path.parents:
continue
with open(json_file_path, 'r') as json_file:
file_content = json.load(json_file)
if 'traceEvents' in file_content:
shutil.copyfile(json_file_path, metrics_tier_3_folder / json_file_path.name)
target_name_candidates = target_name_regex.findall(json_file_path.as_posix())
if not target_name_candidates:
verbose_print('\tCould not determine name for target found in {}'.format(json_file_path))
continue
target_name = target_name_candidates[-1]
if not is_expected_target(target_name):
verbose_print('\tIgnoring target "{}"...'.format(target_name))
continue
verbose_print('\tCollecting metrics data for target "{}"...'.format(target_name))
data_tier_2 = {
'Build': 'Success',
'Type': None,
'Total': 0,
'Frontend': 0,
'Backend': 0,
'Source': {
'Total': 0,
'dla': [],
'stl': []
},
'ParseClass': {
'Total': 0,
'dla': [],
'stl': []
},
'ParseTemplate': {
'Total': 0,
'dla': [],
'stl': []
},
'InstantiateClass': {
'Total': 0,
'dla': [],
'stl': []
},
'InstantiateFunction': {
'Total': 0,
'dla': [],
'stl': []
},
'CodeGen Function': {
'Total': 0,
'dla': [],
'stl': []
}
}
for data_point in file_content['traceEvents']:
data_point_name = data_point['name']
if data_point_name in [ 'ExecuteCompiler', 'Total ExecuteCompiler' ]:
data_tier_2['Total'] = data_point['dur']
elif data_point_name in [ 'Total Frontend', 'Total Backend' ]:
data_point_name = data_point_name[len('Total '):]
data_tier_2[data_point_name] = data_point['dur']
elif data_point_name.startswith('Total'):
data_point_name = remove_prefix(data_point_name, 'Total ')
if data_point_name not in data_tier_2:
verbose_print_ignore_once(data_point_name)
continue
data_tier_2[data_point_name]['Total'] = data_point['dur']
elif data_point_name not in data_tier_2:
verbose_print_ignore_once(data_point_name)
pass
elif data_point_name == 'Source':
source_name = data_point['args']['detail']
source_origin = 'dla' if is_dla_file(source_name) else 'stl'
data_tier_2[data_point_name][source_origin].append({
'File': Path(source_name).name,
'Time': data_point['dur']
})
elif data_point_name in [ 'ParseClass', 'ParseFunction', 'ParseTemplate',
'InstantiateClass', 'InstantiateFunction',
'CodeGen Function' ]:
symbol_name = data_point['args']['detail']
if not symbol_name.startswith(('_', 'std::_')):
symbol_origin = 'dla' if is_dla_file(symbol_name) else 'stl'
data_tier_2[data_point_name][symbol_origin].append({
'Symbol': symbol_name,
'Time': data_point['dur']
})
if '/test/' in json_file_path.as_posix():
verbose_print('\t\tTarget is a unit test suite.')
data_tier_2['Type'] = 'Test'
else:
verbose_print('\t\tTarget is a pure header metrics test.')
data_tier_2['Type'] = 'Header'
if target_name in found_targets:
print('ERROR: Target "{}" exists more than once.'.format(target_name))
exit(1)
collected_data_tier_1[target_name] = {
'Build': data_tier_2['Build'],
'Type': data_tier_2['Type'],
'Total': data_tier_2['Total']
}
collected_data_tier_2[target_name] = data_tier_2
found_targets.append(target_name)
missing_targets = get_missing_targets(found_targets)
for missing_target in missing_targets:
verbose_print('Could not find target "{}", considering this a failed build.'.format(missing_target))
collected_data_tier_2[missing_target] = {
'Build': 'Failure'
}
with open(metrics_folder / Path("metrics_tier_1.json"), "w") as output_file:
json_output = json.dumps(collected_data_tier_1, indent=4 if args.pretty else None)
output_file.write(json_output)
with open(metrics_folder / Path("metrics_tier_2.json"), "w") as output_file:
json_output = json.dumps(collected_data_tier_2, indent=4 if args.pretty else None)
output_file.write(json_output)