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#!/usr/bin/env python3
#
# Copyright (C) 2023 The Android Open Source Project
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import gzip
import json
import os
import sys
from collections import defaultdict
READ_DURATION = [
'soong',
'kati build',
'ninja',
'total',
]
class Trace:
def __init__(self, trace_file):
self.duration = dict()
self._queue = defaultdict(list)
self.target = os.path.splitext(os.path.basename(trace_file))[0]
if not os.path.isfile(trace_file):
return
self._trace_file = gzip.open(trace_file, 'rt', encoding='utf-8')
self._trace_data = json.load(self._trace_file)
for t in self._trace_data:
if 'ph' not in t:
continue
if t['ph'] == 'X':
self.duration[t['name']] = t['dur']
continue
if t['ph'] == 'B':
self._queue[(t['pid'], t['pid'])].append((t['name'], t['ts']))
continue
if t['ph'] == 'E':
queue = self._queue[(t['pid'], t['pid'])]
if not queue:
raise Exception('pid:{}, tid:{} not started'.format(t['pid'], t['pid']))
name, ts = queue.pop()
self.duration[name] = t['ts'] - ts
continue
def out_durations(self):
out_str = self.target
for name in READ_DURATION:
if name not in self.duration:
continue
out_str = '{}, {}'.format(out_str, self.duration[name])
out_str += '\n'
sys.stdout.write(out_str)
def main(argv):
trace = Trace(argv[1])
trace.out_durations()
if __name__ == '__main__':
main(sys.argv)
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