80 lines
2.2 KiB
Python
80 lines
2.2 KiB
Python
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# Copyright 2018 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""Writes a Perf-formated json file with stats about the given web file."""
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import json
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import os
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import subprocess
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import sys
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def main():
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input_file = sys.argv[1]
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out_dir = sys.argv[2]
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keystr = sys.argv[3]
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propstr = sys.argv[4]
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bloaty_path = sys.argv[5]
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results = {
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'key': { },
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'results': { }
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}
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magic_seperator = '#$%^&*'
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print magic_seperator
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print 'If you see lots of func[19] and such, go check out the debug build'
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print ('Note that template instantiations are grouped together, '
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'thus the elided types.')
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print ('If you notice an unsymbolized "duplicate" entry, it is simply how '
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'many bytes the function name itself takes up')
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print subprocess.check_output([bloaty_path, input_file,
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'-d', 'shortsymbols', '-n', '0'])
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print magic_seperator
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print 'If you see lots of func[19] and such, go check out the debug build'
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print subprocess.check_output([bloaty_path, input_file,
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'-d', 'fullsymbols', '-n', '0'])
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props = propstr.split(' ')
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for i in range(0, len(props), 2):
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results[props[i]] = props[i+1]
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keys = keystr.split(' ')
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for i in range(0, len(keys), 2):
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results['key'][keys[i]] = keys[i+1]
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r = {
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'total_size_bytes': os.path.getsize(input_file)
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}
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# Make a copy to avoid destroying the hardlinked file.
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# Swarming hardlinks in the builds from isolated cache.
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temp_file = input_file + '_tmp'
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subprocess.check_call(['cp', input_file, temp_file])
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subprocess.check_call(['gzip', temp_file])
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r['gzip_size_bytes'] = os.path.getsize(temp_file + '.gz')
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name = os.path.basename(input_file)
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results['results'][name] = {
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# We need this top level layer 'config'/slice
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# Other analysis methods (e.g. libskia) might have
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# slices for data on the 'code' section, etc.
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'default' : r,
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}
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print magic_seperator
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print json.dumps(results, indent=2)
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with open(os.path.join(out_dir, name+'.json'), 'w') as output:
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output.write(json.dumps(results, indent=2))
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if '__main__' == __name__:
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main()
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