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117 lines
3.7 KiB
Python
Executable File
117 lines
3.7 KiB
Python
Executable File
#! /usr/bin/env python
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# Copyright 2015 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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import argparse
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import os
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import re
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import shutil
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import sys
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import tempfile
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import zipfile
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import devil_chromium
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from devil.android.sdk import dexdump
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from pylib.constants import host_paths
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sys.path.append(os.path.join(host_paths.DIR_SOURCE_ROOT, 'build', 'util', 'lib',
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'common'))
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import perf_tests_results_helper # pylint: disable=import-error
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# Example dexdump output:
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# DEX file header:
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# magic : 'dex\n035\0'
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# checksum : b664fc68
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# signature : ae73...87f1
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# file_size : 4579656
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# header_size : 112
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# link_size : 0
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# link_off : 0 (0x000000)
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# string_ids_size : 46148
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# string_ids_off : 112 (0x000070)
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# type_ids_size : 5730
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# type_ids_off : 184704 (0x02d180)
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# proto_ids_size : 8289
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# proto_ids_off : 207624 (0x032b08)
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# field_ids_size : 17854
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# field_ids_off : 307092 (0x04af94)
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# method_ids_size : 33699
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# method_ids_off : 449924 (0x06dd84)
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# class_defs_size : 2616
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# class_defs_off : 719516 (0x0afa9c)
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# data_size : 3776428
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# data_off : 803228 (0x0c419c)
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# For what these mean, refer to:
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# https://source.android.com/devices/tech/dalvik/dex-format.html
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CONTRIBUTORS_TO_DEX_CACHE = {'type_ids_size': 'types',
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'string_ids_size': 'strings',
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'method_ids_size': 'methods',
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'field_ids_size': 'fields'}
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def _ExtractSizesFromDexFile(dex_path):
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counts = {}
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for line in dexdump.DexDump(dex_path, file_summary=True):
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if not line.strip():
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# Each method, type, field, and string contributes 4 bytes (1 reference)
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# to our DexCache size.
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return counts, sum(counts[x] for x in CONTRIBUTORS_TO_DEX_CACHE) * 4
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m = re.match(r'([a-z_]+_size) *: (\d+)', line)
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if m and m.group(1) in CONTRIBUTORS_TO_DEX_CACHE:
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counts[m.group(1)] = int(m.group(2))
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raise Exception('Unexpected end of output.')
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def ExtractSizesFromZip(path):
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tmpdir = tempfile.mkdtemp(suffix='_dex_extract')
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try:
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counts = {}
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total = 0
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with zipfile.ZipFile(path, 'r') as z:
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for subpath in z.namelist():
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if not subpath.endswith('.dex'):
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continue
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extracted_path = z.extract(subpath, tmpdir)
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cur_counts, cur_total = _ExtractSizesFromDexFile(extracted_path)
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dex_basename = os.path.basename(extracted_path)
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counts[dex_basename] = cur_counts
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total += cur_total
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return counts, total
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finally:
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shutil.rmtree(tmpdir)
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('filename')
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args = parser.parse_args()
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devil_chromium.Initialize()
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if os.path.splitext(args.filename)[1] in ('.zip', '.apk', '.jar'):
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sizes, total_size = ExtractSizesFromZip(args.filename)
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else:
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single_set_of_sizes, total_size = _ExtractSizesFromDexFile(args.filename)
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sizes = {"": single_set_of_sizes}
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file_basename = os.path.basename(args.filename)
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for classes_dex_file, classes_dex_sizes in sizes.iteritems():
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for dex_header_name, readable_name in CONTRIBUTORS_TO_DEX_CACHE.iteritems():
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if dex_header_name in classes_dex_sizes:
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perf_tests_results_helper.PrintPerfResult(
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'%s_%s_%s' % (file_basename, classes_dex_file, readable_name),
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'total', [classes_dex_sizes[dex_header_name]], readable_name)
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perf_tests_results_helper.PrintPerfResult(
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'%s_DexCache_size' % (file_basename), 'total', [total_size],
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'bytes of permanent dirty memory')
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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