skia2/infra/bots/buildstats/buildstats_wasm.py

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