1# Copyright 2013 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 5import json 6import logging 7 8from metrics import Metric 9 10_COUNTER_NAMES = [ 11 'V8.OsMemoryAllocated', 12 'V8.MemoryNewSpaceBytesAvailable', 13 'V8.MemoryNewSpaceBytesCommitted', 14 'V8.MemoryNewSpaceBytesUsed', 15 'V8.MemoryOldPointerSpaceBytesAvailable', 16 'V8.MemoryOldPointerSpaceBytesCommitted', 17 'V8.MemoryOldPointerSpaceBytesUsed', 18 'V8.MemoryOldDataSpaceBytesAvailable', 19 'V8.MemoryOldDataSpaceBytesCommitted', 20 'V8.MemoryOldDataSpaceBytesUsed', 21 'V8.MemoryCodeSpaceBytesAvailable', 22 'V8.MemoryCodeSpaceBytesCommitted', 23 'V8.MemoryCodeSpaceBytesUsed', 24 'V8.MemoryMapSpaceBytesAvailable', 25 'V8.MemoryMapSpaceBytesCommitted', 26 'V8.MemoryMapSpaceBytesUsed', 27 'V8.MemoryCellSpaceBytesAvailable', 28 'V8.MemoryCellSpaceBytesCommitted', 29 'V8.MemoryCellSpaceBytesUsed', 30 'V8.MemoryPropertyCellSpaceBytesAvailable', 31 'V8.MemoryPropertyCellSpaceBytesCommitted', 32 'V8.MemoryPropertyCellSpaceBytesUsed', 33 'V8.MemoryLoSpaceBytesAvailable', 34 'V8.MemoryLoSpaceBytesCommitted', 35 'V8.MemoryLoSpaceBytesUsed', 36 'V8.SizeOf_ACCESSOR_PAIR_TYPE', 37 'V8.SizeOf_ACCESS_CHECK_INFO_TYPE', 38 'V8.SizeOf_ALIASED_ARGUMENTS_ENTRY_TYPE', 39 'V8.SizeOf_ALLOCATION_MEMENTO_TYPE', 40 'V8.SizeOf_ALLOCATION_SITE_TYPE', 41 'V8.SizeOf_ASCII_INTERNALIZED_STRING_TYPE', 42 'V8.SizeOf_ASCII_STRING_TYPE', 43 'V8.SizeOf_BOX_TYPE', 44 'V8.SizeOf_BREAK_POINT_INFO_TYPE', 45 'V8.SizeOf_BYTE_ARRAY_TYPE', 46 'V8.SizeOf_CALL_HANDLER_INFO_TYPE', 47 'V8.SizeOf_CELL_TYPE', 48 'V8.SizeOf_CODE_CACHE_TYPE', 49 'V8.SizeOf_CODE_TYPE', 50 'V8.SizeOf_CODE_TYPE-BINARY_OP_IC', 51 'V8.SizeOf_CODE_TYPE-BUILTIN', 52 'V8.SizeOf_CODE_TYPE-CALL_IC', 53 'V8.SizeOf_CODE_TYPE-COMPARE_IC', 54 'V8.SizeOf_CODE_TYPE-COMPARE_NIL_IC', 55 'V8.SizeOf_CODE_TYPE-FUNCTION', 56 'V8.SizeOf_CODE_TYPE-KEYED_CALL_IC', 57 'V8.SizeOf_CODE_TYPE-KEYED_LOAD_IC', 58 'V8.SizeOf_CODE_TYPE-KEYED_STORE_IC', 59 'V8.SizeOf_CODE_TYPE-LOAD_IC', 60 'V8.SizeOf_CODE_TYPE-OPTIMIZED_FUNCTION', 61 'V8.SizeOf_CODE_TYPE-REGEXP', 62 'V8.SizeOf_CODE_TYPE-STORE_IC', 63 'V8.SizeOf_CODE_TYPE-STUB', 64 'V8.SizeOf_CODE_TYPE-TO_BOOLEAN_IC', 65 'V8.SizeOf_CONS_ASCII_INTERNALIZED_STRING_TYPE', 66 'V8.SizeOf_CONS_ASCII_STRING_TYPE', 67 'V8.SizeOf_CONS_INTERNALIZED_STRING_TYPE', 68 'V8.SizeOf_CONS_STRING_TYPE', 69 'V8.SizeOf_DEBUG_INFO_TYPE', 70 'V8.SizeOf_DECLARED_ACCESSOR_DESCRIPTOR_TYPE', 71 'V8.SizeOf_DECLARED_ACCESSOR_INFO_TYPE', 72 'V8.SizeOf_EXECUTABLE_ACCESSOR_INFO_TYPE', 73 'V8.SizeOf_EXTERNAL_ASCII_INTERNALIZED_STRING_TYPE', 74 'V8.SizeOf_EXTERNAL_ASCII_STRING_TYPE', 75 'V8.SizeOf_EXTERNAL_BYTE_ARRAY_TYPE', 76 'V8.SizeOf_EXTERNAL_DOUBLE_ARRAY_TYPE', 77 'V8.SizeOf_EXTERNAL_FLOAT_ARRAY_TYPE', 78 'V8.SizeOf_EXTERNAL_INTERNALIZED_STRING_TYPE', 79 'V8.SizeOf_EXTERNAL_INTERNALIZED_STRING_WITH_ONE_BYTE_DATA_TYPE', 80 'V8.SizeOf_EXTERNAL_INT_ARRAY_TYPE', 81 'V8.SizeOf_EXTERNAL_PIXEL_ARRAY_TYPE', 82 'V8.SizeOf_EXTERNAL_SHORT_ARRAY_TYPE', 83 'V8.SizeOf_EXTERNAL_STRING_TYPE', 84 'V8.SizeOf_EXTERNAL_STRING_WITH_ONE_BYTE_DATA_TYPE', 85 'V8.SizeOf_EXTERNAL_UNSIGNED_BYTE_ARRAY_TYPE', 86 'V8.SizeOf_EXTERNAL_UNSIGNED_INT_ARRAY_TYPE', 87 'V8.SizeOf_EXTERNAL_UNSIGNED_SHORT_ARRAY_TYPE', 88 'V8.SizeOf_FILLER_TYPE', 89 'V8.SizeOf_FIXED_ARRAY-DESCRIPTOR_ARRAY_SUB_TYPE', 90 'V8.SizeOf_FIXED_ARRAY-DICTIONARY_ELEMENTS_SUB_TYPE', 91 'V8.SizeOf_FIXED_ARRAY-DICTIONARY_PROPERTIES_SUB_TYPE', 92 'V8.SizeOf_FIXED_ARRAY-FAST_ELEMENTS_SUB_TYPE', 93 'V8.SizeOf_FIXED_ARRAY-FAST_PROPERTIES_SUB_TYPE', 94 'V8.SizeOf_FIXED_ARRAY-MAP_CODE_CACHE_SUB_TYPE', 95 'V8.SizeOf_FIXED_ARRAY-SCOPE_INFO_SUB_TYPE', 96 'V8.SizeOf_FIXED_ARRAY-STRING_TABLE_SUB_TYPE', 97 'V8.SizeOf_FIXED_ARRAY-TRANSITION_ARRAY_SUB_TYPE', 98 'V8.SizeOf_FIXED_ARRAY_TYPE', 99 'V8.SizeOf_FIXED_DOUBLE_ARRAY_TYPE', 100 'V8.SizeOf_FOREIGN_TYPE', 101 'V8.SizeOf_FREE_SPACE_TYPE', 102 'V8.SizeOf_FUNCTION_TEMPLATE_INFO_TYPE', 103 'V8.SizeOf_HEAP_NUMBER_TYPE', 104 'V8.SizeOf_INTERCEPTOR_INFO_TYPE', 105 'V8.SizeOf_INTERNALIZED_STRING_TYPE', 106 'V8.SizeOf_JS_ARRAY_BUFFER_TYPE', 107 'V8.SizeOf_JS_ARRAY_TYPE', 108 'V8.SizeOf_JS_BUILTINS_OBJECT_TYPE', 109 'V8.SizeOf_JS_CONTEXT_EXTENSION_OBJECT_TYPE', 110 'V8.SizeOf_JS_DATA_VIEW_TYPE', 111 'V8.SizeOf_JS_DATE_TYPE', 112 'V8.SizeOf_JS_FUNCTION_PROXY_TYPE', 113 'V8.SizeOf_JS_FUNCTION_TYPE', 114 'V8.SizeOf_JS_GENERATOR_OBJECT_TYPE', 115 'V8.SizeOf_JS_GLOBAL_OBJECT_TYPE', 116 'V8.SizeOf_JS_GLOBAL_PROXY_TYPE', 117 'V8.SizeOf_JS_MAP_TYPE', 118 'V8.SizeOf_JS_MESSAGE_OBJECT_TYPE', 119 'V8.SizeOf_JS_MODULE_TYPE', 120 'V8.SizeOf_JS_OBJECT_TYPE', 121 'V8.SizeOf_JS_PROXY_TYPE', 122 'V8.SizeOf_JS_REGEXP_TYPE', 123 'V8.SizeOf_JS_SET_TYPE', 124 'V8.SizeOf_JS_TYPED_ARRAY_TYPE', 125 'V8.SizeOf_JS_VALUE_TYPE', 126 'V8.SizeOf_JS_WEAK_MAP_TYPE', 127 'V8.SizeOf_JS_WEAK_SET_TYPE', 128 'V8.SizeOf_MAP_TYPE', 129 'V8.SizeOf_OBJECT_TEMPLATE_INFO_TYPE', 130 'V8.SizeOf_ODDBALL_TYPE', 131 'V8.SizeOf_POLYMORPHIC_CODE_CACHE_TYPE', 132 'V8.SizeOf_PROPERTY_CELL_TYPE', 133 'V8.SizeOf_SCRIPT_TYPE', 134 'V8.SizeOf_SHARED_FUNCTION_INFO_TYPE', 135 'V8.SizeOf_SHORT_EXTERNAL_ASCII_INTERNALIZED_STRING_TYPE', 136 'V8.SizeOf_SHORT_EXTERNAL_ASCII_STRING_TYPE', 137 'V8.SizeOf_SHORT_EXTERNAL_INTERNALIZED_STRING_TYPE', 138 'V8.SizeOf_SHORT_EXTERNAL_INTERNALIZED_STRING_WITH_ONE_BYTE_DATA_TYPE', 139 'V8.SizeOf_SHORT_EXTERNAL_STRING_TYPE', 140 'V8.SizeOf_SHORT_EXTERNAL_STRING_WITH_ONE_BYTE_DATA_TYPE', 141 'V8.SizeOf_SIGNATURE_INFO_TYPE', 142 'V8.SizeOf_SLICED_ASCII_STRING_TYPE', 143 'V8.SizeOf_SLICED_STRING_TYPE', 144 'V8.SizeOf_STRING_TYPE', 145 'V8.SizeOf_SYMBOL_TYPE', 146 'V8.SizeOf_TYPE_FEEDBACK_INFO_TYPE', 147 'V8.SizeOf_TYPE_SWITCH_INFO_TYPE' 148 ] 149 150class V8ObjectStatsMetric(Metric): 151 """V8ObjectStatsMetric gathers statistics on the size of types in the V8 heap. 152 153 It does this by enabling the --track_gc_object_stats flag on V8 and reading 154 these statistics from the StatsTableMetric. 155 """ 156 157 def __init__(self): 158 super(V8ObjectStatsMetric, self).__init__() 159 self._results = None 160 161 @classmethod 162 def CustomizeBrowserOptions(cls, options): 163 options.AppendExtraBrowserArgs([ 164 '--enable-stats-table', 165 '--enable-benchmarking', 166 '--js-flags=--track_gc_object_stats --expose_gc', 167 # TODO(rmcilroy): This is needed for --enable-stats-table. Update once 168 # https://codereview.chromium.org/22911027/ lands. 169 '--no-sandbox' 170 ]) 171 172 @staticmethod 173 def GetV8StatsTable(tab, counters=None): 174 counters = counters or _COUNTER_NAMES 175 176 return tab.EvaluateJavaScript(""" 177 (function(counters) { 178 var results = {}; 179 if (!window.chrome || !window.chrome.benchmarking) 180 return results; 181 window.gc(); // Trigger GC to ensure stats are checkpointed. 182 for (var i = 0; i < counters.length; i++) 183 results[counters[i]] = 184 chrome.benchmarking.counterForRenderer(counters[i]); 185 return results; 186 })(%s); 187 """ % json.dumps(counters)) 188 189 def Start(self, page, tab): 190 """Do Nothing.""" 191 pass 192 193 def Stop(self, page, tab): 194 """Get the values in the stats table after the page is loaded.""" 195 self._results = V8ObjectStatsMetric.GetV8StatsTable(tab) 196 if not self._results: 197 logging.warning('No V8 object stats from website: ' + page.display_name) 198 199 def AddResults(self, tab, results): 200 """Add results for this page to the results object.""" 201 assert self._results != None, 'Must call Stop() first' 202 for counter_name in self._results: 203 results.Add(counter_name, 'kb', self._results[counter_name] / 1024.0) 204