1# Copyright 2018 The Chromium Authors. All rights reserved. 2# Use of this source code is governed by a BSD-style license that can be 3# found in the LICENSE file. 4 5 6"""Writes a Perf-formated json file with stats about the given web file.""" 7 8 9import json 10import os 11import subprocess 12import sys 13 14 15def main(): 16 input_file = sys.argv[1] 17 out_dir = sys.argv[2] 18 keystr = sys.argv[3] 19 propstr = sys.argv[4] 20 bloaty_path = sys.argv[5] 21 22 results = { 23 'key': { }, 24 'results': { } 25 } 26 27 magic_seperator = '#$%^&*' 28 print magic_seperator 29 print 'If you see lots of func[19] and such, go check out the debug build' 30 print ('Note that template instantiations are grouped together, ' 31 'thus the elided types.') 32 print ('If you notice an unsymbolized "duplicate" entry, it is simply how ' 33 'many bytes the function name itself takes up') 34 print subprocess.check_output([bloaty_path, input_file, 35 '-d', 'shortsymbols', '-n', '0']) 36 37 print magic_seperator 38 print 'If you see lots of func[19] and such, go check out the debug build' 39 print subprocess.check_output([bloaty_path, input_file, 40 '-d', 'fullsymbols', '-n', '0']) 41 42 props = propstr.split(' ') 43 for i in range(0, len(props), 2): 44 results[props[i]] = props[i+1] 45 46 keys = keystr.split(' ') 47 for i in range(0, len(keys), 2): 48 results['key'][keys[i]] = keys[i+1] 49 50 r = { 51 'total_size_bytes': os.path.getsize(input_file) 52 } 53 54 # Make a copy to avoid destroying the hardlinked file. 55 # Swarming hardlinks in the builds from isolated cache. 56 temp_file = input_file + '_tmp' 57 subprocess.check_call(['cp', input_file, temp_file]) 58 subprocess.check_call(['gzip', temp_file]) 59 60 r['gzip_size_bytes'] = os.path.getsize(temp_file + '.gz') 61 62 name = os.path.basename(input_file) 63 64 results['results'][name] = { 65 # We need this top level layer 'config'/slice 66 # Other analysis methods (e.g. libskia) might have 67 # slices for data on the 'code' section, etc. 68 'default' : r, 69 } 70 71 print magic_seperator 72 print json.dumps(results, indent=2) 73 74 with open(os.path.join(out_dir, name+'.json'), 'w') as output: 75 output.write(json.dumps(results, indent=2)) 76 77 78if __name__ == '__main__': 79 main() 80