Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1 | // Copyright 2009 the V8 project authors. All rights reserved. |
| 2 | // |
| 3 | // Tests for heap profiler |
| 4 | |
| 5 | #ifdef ENABLE_LOGGING_AND_PROFILING |
| 6 | |
| 7 | #include "v8.h" |
| 8 | #include "heap-profiler.h" |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 9 | #include "snapshot.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 10 | #include "string-stream.h" |
| 11 | #include "cctest.h" |
Steve Block | 6ded16b | 2010-05-10 14:33:55 +0100 | [diff] [blame] | 12 | #include "zone-inl.h" |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 13 | #include "../include/v8-profiler.h" |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 14 | |
| 15 | namespace i = v8::internal; |
| 16 | using i::ClustersCoarser; |
| 17 | using i::JSObjectsCluster; |
| 18 | using i::JSObjectsRetainerTree; |
| 19 | using i::JSObjectsClusterTree; |
| 20 | using i::RetainerHeapProfile; |
| 21 | |
| 22 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 23 | namespace { |
| 24 | |
| 25 | class ConstructorHeapProfileTestHelper : public i::ConstructorHeapProfile { |
| 26 | public: |
| 27 | ConstructorHeapProfileTestHelper() |
| 28 | : i::ConstructorHeapProfile(), |
| 29 | f_name_(i::Factory::NewStringFromAscii(i::CStrVector("F"))), |
| 30 | f_count_(0) { |
| 31 | } |
| 32 | |
| 33 | void Call(const JSObjectsCluster& cluster, |
| 34 | const i::NumberAndSizeInfo& number_and_size) { |
| 35 | if (f_name_->Equals(cluster.constructor())) { |
| 36 | CHECK_EQ(f_count_, 0); |
| 37 | f_count_ = number_and_size.number(); |
| 38 | CHECK_GT(f_count_, 0); |
| 39 | } |
| 40 | } |
| 41 | |
| 42 | int f_count() { return f_count_; } |
| 43 | |
| 44 | private: |
| 45 | i::Handle<i::String> f_name_; |
| 46 | int f_count_; |
| 47 | }; |
| 48 | |
| 49 | } // namespace |
| 50 | |
| 51 | |
| 52 | TEST(ConstructorProfile) { |
| 53 | v8::HandleScope scope; |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 54 | LocalContext env; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 55 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 56 | CompileRun( |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 57 | "function F() {} // A constructor\n" |
| 58 | "var f1 = new F();\n" |
| 59 | "var f2 = new F();\n"); |
| 60 | |
| 61 | ConstructorHeapProfileTestHelper cons_profile; |
| 62 | i::AssertNoAllocation no_alloc; |
| 63 | i::HeapIterator iterator; |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 64 | for (i::HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 65 | cons_profile.CollectStats(obj); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 66 | CHECK_EQ(0, cons_profile.f_count()); |
| 67 | cons_profile.PrintStats(); |
| 68 | CHECK_EQ(2, cons_profile.f_count()); |
| 69 | } |
| 70 | |
| 71 | |
| 72 | static JSObjectsCluster AddHeapObjectToTree(JSObjectsRetainerTree* tree, |
| 73 | i::String* constructor, |
| 74 | int instance, |
| 75 | JSObjectsCluster* ref1 = NULL, |
| 76 | JSObjectsCluster* ref2 = NULL, |
| 77 | JSObjectsCluster* ref3 = NULL) { |
| 78 | JSObjectsCluster o(constructor, reinterpret_cast<i::Object*>(instance)); |
| 79 | JSObjectsClusterTree* o_tree = new JSObjectsClusterTree(); |
| 80 | JSObjectsClusterTree::Locator o_loc; |
| 81 | if (ref1 != NULL) o_tree->Insert(*ref1, &o_loc); |
| 82 | if (ref2 != NULL) o_tree->Insert(*ref2, &o_loc); |
| 83 | if (ref3 != NULL) o_tree->Insert(*ref3, &o_loc); |
| 84 | JSObjectsRetainerTree::Locator loc; |
| 85 | tree->Insert(o, &loc); |
| 86 | loc.set_value(o_tree); |
| 87 | return o; |
| 88 | } |
| 89 | |
| 90 | |
| 91 | static void AddSelfReferenceToTree(JSObjectsRetainerTree* tree, |
| 92 | JSObjectsCluster* self_ref) { |
| 93 | JSObjectsRetainerTree::Locator loc; |
| 94 | CHECK(tree->Find(*self_ref, &loc)); |
| 95 | JSObjectsClusterTree::Locator o_loc; |
| 96 | CHECK_NE(NULL, loc.value()); |
| 97 | loc.value()->Insert(*self_ref, &o_loc); |
| 98 | } |
| 99 | |
| 100 | |
| 101 | static inline void CheckEqualsHelper(const char* file, int line, |
| 102 | const char* expected_source, |
| 103 | const JSObjectsCluster& expected, |
| 104 | const char* value_source, |
| 105 | const JSObjectsCluster& value) { |
| 106 | if (JSObjectsCluster::Compare(expected, value) != 0) { |
| 107 | i::HeapStringAllocator allocator; |
| 108 | i::StringStream stream(&allocator); |
| 109 | stream.Add("# Expected: "); |
| 110 | expected.DebugPrint(&stream); |
| 111 | stream.Add("\n# Found: "); |
| 112 | value.DebugPrint(&stream); |
| 113 | V8_Fatal(file, line, "CHECK_EQ(%s, %s) failed\n%s", |
| 114 | expected_source, value_source, |
| 115 | *stream.ToCString()); |
| 116 | } |
| 117 | } |
| 118 | |
| 119 | |
| 120 | static inline void CheckNonEqualsHelper(const char* file, int line, |
| 121 | const char* expected_source, |
| 122 | const JSObjectsCluster& expected, |
| 123 | const char* value_source, |
| 124 | const JSObjectsCluster& value) { |
| 125 | if (JSObjectsCluster::Compare(expected, value) == 0) { |
| 126 | i::HeapStringAllocator allocator; |
| 127 | i::StringStream stream(&allocator); |
| 128 | stream.Add("# !Expected: "); |
| 129 | expected.DebugPrint(&stream); |
| 130 | stream.Add("\n# Found: "); |
| 131 | value.DebugPrint(&stream); |
| 132 | V8_Fatal(file, line, "CHECK_NE(%s, %s) failed\n%s", |
| 133 | expected_source, value_source, |
| 134 | *stream.ToCString()); |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | |
| 139 | TEST(ClustersCoarserSimple) { |
| 140 | v8::HandleScope scope; |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 141 | LocalContext env; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 142 | |
| 143 | i::ZoneScope zn_scope(i::DELETE_ON_EXIT); |
| 144 | |
| 145 | JSObjectsRetainerTree tree; |
| 146 | JSObjectsCluster function(i::Heap::function_class_symbol()); |
| 147 | JSObjectsCluster a(*i::Factory::NewStringFromAscii(i::CStrVector("A"))); |
| 148 | JSObjectsCluster b(*i::Factory::NewStringFromAscii(i::CStrVector("B"))); |
| 149 | |
| 150 | // o1 <- Function |
| 151 | JSObjectsCluster o1 = |
| 152 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x100, &function); |
| 153 | // o2 <- Function |
| 154 | JSObjectsCluster o2 = |
| 155 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x200, &function); |
| 156 | // o3 <- A, B |
| 157 | JSObjectsCluster o3 = |
| 158 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x300, &a, &b); |
| 159 | // o4 <- B, A |
| 160 | JSObjectsCluster o4 = |
| 161 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x400, &b, &a); |
| 162 | // o5 <- A, B, Function |
| 163 | JSObjectsCluster o5 = |
| 164 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x500, |
| 165 | &a, &b, &function); |
| 166 | |
| 167 | ClustersCoarser coarser; |
| 168 | coarser.Process(&tree); |
| 169 | |
| 170 | CHECK_EQ(coarser.GetCoarseEquivalent(o1), coarser.GetCoarseEquivalent(o2)); |
| 171 | CHECK_EQ(coarser.GetCoarseEquivalent(o3), coarser.GetCoarseEquivalent(o4)); |
| 172 | CHECK_NE(coarser.GetCoarseEquivalent(o1), coarser.GetCoarseEquivalent(o3)); |
| 173 | CHECK_EQ(JSObjectsCluster(), coarser.GetCoarseEquivalent(o5)); |
| 174 | } |
| 175 | |
| 176 | |
| 177 | TEST(ClustersCoarserMultipleConstructors) { |
| 178 | v8::HandleScope scope; |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 179 | LocalContext env; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 180 | |
| 181 | i::ZoneScope zn_scope(i::DELETE_ON_EXIT); |
| 182 | |
| 183 | JSObjectsRetainerTree tree; |
| 184 | JSObjectsCluster function(i::Heap::function_class_symbol()); |
| 185 | |
| 186 | // o1 <- Function |
| 187 | JSObjectsCluster o1 = |
| 188 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x100, &function); |
| 189 | // a1 <- Function |
| 190 | JSObjectsCluster a1 = |
| 191 | AddHeapObjectToTree(&tree, i::Heap::Array_symbol(), 0x1000, &function); |
| 192 | // o2 <- Function |
| 193 | JSObjectsCluster o2 = |
| 194 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x200, &function); |
| 195 | // a2 <- Function |
| 196 | JSObjectsCluster a2 = |
| 197 | AddHeapObjectToTree(&tree, i::Heap::Array_symbol(), 0x2000, &function); |
| 198 | |
| 199 | ClustersCoarser coarser; |
| 200 | coarser.Process(&tree); |
| 201 | |
| 202 | CHECK_EQ(coarser.GetCoarseEquivalent(o1), coarser.GetCoarseEquivalent(o2)); |
| 203 | CHECK_EQ(coarser.GetCoarseEquivalent(a1), coarser.GetCoarseEquivalent(a2)); |
| 204 | } |
| 205 | |
| 206 | |
| 207 | TEST(ClustersCoarserPathsTraversal) { |
| 208 | v8::HandleScope scope; |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 209 | LocalContext env; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 210 | |
| 211 | i::ZoneScope zn_scope(i::DELETE_ON_EXIT); |
| 212 | |
| 213 | JSObjectsRetainerTree tree; |
| 214 | |
| 215 | // On the following graph: |
| 216 | // |
| 217 | // p |
| 218 | // <- o21 <- o11 <- |
| 219 | // q o |
| 220 | // <- o22 <- o12 <- |
| 221 | // r |
| 222 | // |
| 223 | // we expect that coarser will deduce equivalences: p ~ q ~ r, |
| 224 | // o21 ~ o22, and o11 ~ o12. |
| 225 | |
| 226 | JSObjectsCluster o = |
| 227 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x100); |
| 228 | JSObjectsCluster o11 = |
| 229 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x110, &o); |
| 230 | JSObjectsCluster o12 = |
| 231 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x120, &o); |
| 232 | JSObjectsCluster o21 = |
| 233 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x210, &o11); |
| 234 | JSObjectsCluster o22 = |
| 235 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x220, &o12); |
| 236 | JSObjectsCluster p = |
| 237 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x300, &o21); |
| 238 | JSObjectsCluster q = |
| 239 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x310, &o21, &o22); |
| 240 | JSObjectsCluster r = |
| 241 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x320, &o22); |
| 242 | |
| 243 | ClustersCoarser coarser; |
| 244 | coarser.Process(&tree); |
| 245 | |
| 246 | CHECK_EQ(JSObjectsCluster(), coarser.GetCoarseEquivalent(o)); |
| 247 | CHECK_NE(JSObjectsCluster(), coarser.GetCoarseEquivalent(o11)); |
| 248 | CHECK_EQ(coarser.GetCoarseEquivalent(o11), coarser.GetCoarseEquivalent(o12)); |
| 249 | CHECK_EQ(coarser.GetCoarseEquivalent(o21), coarser.GetCoarseEquivalent(o22)); |
| 250 | CHECK_NE(coarser.GetCoarseEquivalent(o11), coarser.GetCoarseEquivalent(o21)); |
| 251 | CHECK_NE(JSObjectsCluster(), coarser.GetCoarseEquivalent(p)); |
| 252 | CHECK_EQ(coarser.GetCoarseEquivalent(p), coarser.GetCoarseEquivalent(q)); |
| 253 | CHECK_EQ(coarser.GetCoarseEquivalent(q), coarser.GetCoarseEquivalent(r)); |
| 254 | CHECK_NE(coarser.GetCoarseEquivalent(o11), coarser.GetCoarseEquivalent(p)); |
| 255 | CHECK_NE(coarser.GetCoarseEquivalent(o21), coarser.GetCoarseEquivalent(p)); |
| 256 | } |
| 257 | |
| 258 | |
| 259 | TEST(ClustersCoarserSelf) { |
| 260 | v8::HandleScope scope; |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 261 | LocalContext env; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 262 | |
| 263 | i::ZoneScope zn_scope(i::DELETE_ON_EXIT); |
| 264 | |
| 265 | JSObjectsRetainerTree tree; |
| 266 | |
| 267 | // On the following graph: |
| 268 | // |
| 269 | // p (self-referencing) |
| 270 | // <- o1 <- |
| 271 | // q (self-referencing) o |
| 272 | // <- o2 <- |
| 273 | // r (self-referencing) |
| 274 | // |
| 275 | // we expect that coarser will deduce equivalences: p ~ q ~ r, o1 ~ o2; |
| 276 | |
| 277 | JSObjectsCluster o = |
| 278 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x100); |
| 279 | JSObjectsCluster o1 = |
| 280 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x110, &o); |
| 281 | JSObjectsCluster o2 = |
| 282 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x120, &o); |
| 283 | JSObjectsCluster p = |
| 284 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x300, &o1); |
| 285 | AddSelfReferenceToTree(&tree, &p); |
| 286 | JSObjectsCluster q = |
| 287 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x310, &o1, &o2); |
| 288 | AddSelfReferenceToTree(&tree, &q); |
| 289 | JSObjectsCluster r = |
| 290 | AddHeapObjectToTree(&tree, i::Heap::Object_symbol(), 0x320, &o2); |
| 291 | AddSelfReferenceToTree(&tree, &r); |
| 292 | |
| 293 | ClustersCoarser coarser; |
| 294 | coarser.Process(&tree); |
| 295 | |
| 296 | CHECK_EQ(JSObjectsCluster(), coarser.GetCoarseEquivalent(o)); |
| 297 | CHECK_NE(JSObjectsCluster(), coarser.GetCoarseEquivalent(o1)); |
| 298 | CHECK_EQ(coarser.GetCoarseEquivalent(o1), coarser.GetCoarseEquivalent(o2)); |
| 299 | CHECK_NE(JSObjectsCluster(), coarser.GetCoarseEquivalent(p)); |
| 300 | CHECK_EQ(coarser.GetCoarseEquivalent(p), coarser.GetCoarseEquivalent(q)); |
| 301 | CHECK_EQ(coarser.GetCoarseEquivalent(q), coarser.GetCoarseEquivalent(r)); |
| 302 | CHECK_NE(coarser.GetCoarseEquivalent(o1), coarser.GetCoarseEquivalent(p)); |
| 303 | } |
| 304 | |
| 305 | |
| 306 | namespace { |
| 307 | |
| 308 | class RetainerProfilePrinter : public RetainerHeapProfile::Printer { |
| 309 | public: |
| 310 | RetainerProfilePrinter() : stream_(&allocator_), lines_(100) {} |
| 311 | |
| 312 | void PrintRetainers(const JSObjectsCluster& cluster, |
| 313 | const i::StringStream& retainers) { |
| 314 | cluster.Print(&stream_); |
| 315 | stream_.Add("%s", *(retainers.ToCString())); |
| 316 | stream_.Put('\0'); |
| 317 | } |
| 318 | |
| 319 | const char* GetRetainers(const char* constructor) { |
| 320 | FillLines(); |
| 321 | const size_t cons_len = strlen(constructor); |
| 322 | for (int i = 0; i < lines_.length(); ++i) { |
| 323 | if (strncmp(constructor, lines_[i], cons_len) == 0 && |
| 324 | lines_[i][cons_len] == ',') { |
| 325 | return lines_[i] + cons_len + 1; |
| 326 | } |
| 327 | } |
| 328 | return NULL; |
| 329 | } |
| 330 | |
| 331 | private: |
| 332 | void FillLines() { |
| 333 | if (lines_.length() > 0) return; |
| 334 | stream_.Put('\0'); |
| 335 | stream_str_ = stream_.ToCString(); |
| 336 | const char* pos = *stream_str_; |
| 337 | while (pos != NULL && *pos != '\0') { |
| 338 | lines_.Add(pos); |
| 339 | pos = strchr(pos, '\0'); |
| 340 | if (pos != NULL) ++pos; |
| 341 | } |
| 342 | } |
| 343 | |
| 344 | i::HeapStringAllocator allocator_; |
| 345 | i::StringStream stream_; |
| 346 | i::SmartPointer<const char> stream_str_; |
| 347 | i::List<const char*> lines_; |
| 348 | }; |
| 349 | |
| 350 | } // namespace |
| 351 | |
| 352 | |
| 353 | TEST(RetainerProfile) { |
| 354 | v8::HandleScope scope; |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 355 | LocalContext env; |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 356 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 357 | CompileRun( |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 358 | "function A() {}\n" |
| 359 | "function B(x) { this.x = x; }\n" |
| 360 | "function C(x) { this.x1 = x; this.x2 = x; }\n" |
| 361 | "var a = new A();\n" |
| 362 | "var b1 = new B(a), b2 = new B(a);\n" |
| 363 | "var c = new C(a);"); |
| 364 | |
| 365 | RetainerHeapProfile ret_profile; |
| 366 | i::AssertNoAllocation no_alloc; |
| 367 | i::HeapIterator iterator; |
Leon Clarke | d91b9f7 | 2010-01-27 17:25:45 +0000 | [diff] [blame] | 368 | for (i::HeapObject* obj = iterator.next(); obj != NULL; obj = iterator.next()) |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 369 | ret_profile.CollectStats(obj); |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 370 | ret_profile.CoarseAndAggregate(); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 371 | RetainerProfilePrinter printer; |
| 372 | ret_profile.DebugPrintStats(&printer); |
| 373 | const char* retainers_of_a = printer.GetRetainers("A"); |
| 374 | // The order of retainers is unspecified, so we check string length, and |
| 375 | // verify each retainer separately. |
Steve Block | d0582a6 | 2009-12-15 09:54:21 +0000 | [diff] [blame] | 376 | CHECK_EQ(i::StrLength("(global property);1,B;2,C;2"), |
| 377 | i::StrLength(retainers_of_a)); |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 378 | CHECK(strstr(retainers_of_a, "(global property);1") != NULL); |
| 379 | CHECK(strstr(retainers_of_a, "B;2") != NULL); |
| 380 | CHECK(strstr(retainers_of_a, "C;2") != NULL); |
| 381 | CHECK_EQ("(global property);2", printer.GetRetainers("B")); |
| 382 | CHECK_EQ("(global property);1", printer.GetRetainers("C")); |
| 383 | } |
| 384 | |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 385 | |
| 386 | namespace { |
| 387 | |
| 388 | class NamedEntriesDetector { |
| 389 | public: |
| 390 | NamedEntriesDetector() |
Russell Brenner | 90bac25 | 2010-11-18 13:33:46 -0800 | [diff] [blame] | 391 | : has_A2(false), has_B2(false), has_C2(false) { |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 392 | } |
| 393 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 394 | void Apply(i::HeapEntry** entry_ptr) { |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 395 | if (IsReachableNodeWithName(*entry_ptr, "A2")) has_A2 = true; |
| 396 | if (IsReachableNodeWithName(*entry_ptr, "B2")) has_B2 = true; |
| 397 | if (IsReachableNodeWithName(*entry_ptr, "C2")) has_C2 = true; |
| 398 | } |
| 399 | |
| 400 | static bool IsReachableNodeWithName(i::HeapEntry* entry, const char* name) { |
| 401 | return strcmp(name, entry->name()) == 0 && entry->painted_reachable(); |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 402 | } |
| 403 | |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 404 | bool has_A2; |
| 405 | bool has_B2; |
| 406 | bool has_C2; |
| 407 | }; |
| 408 | |
| 409 | } // namespace |
| 410 | |
| 411 | |
| 412 | static const v8::HeapGraphNode* GetGlobalObject( |
| 413 | const v8::HeapSnapshot* snapshot) { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 414 | CHECK_EQ(2, snapshot->GetRoot()->GetChildrenCount()); |
| 415 | const v8::HeapGraphNode* global_obj = |
| 416 | snapshot->GetRoot()->GetChild(0)->GetToNode(); |
| 417 | CHECK_EQ("Object", const_cast<i::HeapEntry*>( |
| 418 | reinterpret_cast<const i::HeapEntry*>(global_obj))->name()); |
| 419 | return global_obj; |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 420 | } |
| 421 | |
| 422 | |
| 423 | static const v8::HeapGraphNode* GetProperty(const v8::HeapGraphNode* node, |
| 424 | v8::HeapGraphEdge::Type type, |
| 425 | const char* name) { |
| 426 | for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) { |
| 427 | const v8::HeapGraphEdge* prop = node->GetChild(i); |
| 428 | v8::String::AsciiValue prop_name(prop->GetName()); |
| 429 | if (prop->GetType() == type && strcmp(name, *prop_name) == 0) |
| 430 | return prop->GetToNode(); |
| 431 | } |
| 432 | return NULL; |
| 433 | } |
| 434 | |
| 435 | |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 436 | static bool IsNodeRetainedAs(const v8::HeapGraphNode* node, |
| 437 | v8::HeapGraphEdge::Type type, |
| 438 | const char* name) { |
| 439 | for (int i = 0, count = node->GetRetainersCount(); i < count; ++i) { |
| 440 | const v8::HeapGraphEdge* prop = node->GetRetainer(i); |
| 441 | v8::String::AsciiValue prop_name(prop->GetName()); |
| 442 | if (prop->GetType() == type && strcmp(name, *prop_name) == 0) |
| 443 | return true; |
| 444 | } |
| 445 | return false; |
| 446 | } |
| 447 | |
| 448 | |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 449 | static bool HasString(const v8::HeapGraphNode* node, const char* contents) { |
| 450 | for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) { |
| 451 | const v8::HeapGraphEdge* prop = node->GetChild(i); |
| 452 | const v8::HeapGraphNode* node = prop->GetToNode(); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 453 | if (node->GetType() == v8::HeapGraphNode::kString) { |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 454 | v8::String::AsciiValue node_name(node->GetName()); |
| 455 | if (strcmp(contents, *node_name) == 0) return true; |
| 456 | } |
| 457 | } |
| 458 | return false; |
| 459 | } |
| 460 | |
| 461 | |
| 462 | TEST(HeapSnapshot) { |
| 463 | v8::HandleScope scope; |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 464 | LocalContext env2; |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 465 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 466 | CompileRun( |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 467 | "function A2() {}\n" |
| 468 | "function B2(x) { return function() { return typeof x; }; }\n" |
| 469 | "function C2(x) { this.x1 = x; this.x2 = x; this[1] = x; }\n" |
| 470 | "var a2 = new A2();\n" |
| 471 | "var b2_1 = new B2(a2), b2_2 = new B2(a2);\n" |
| 472 | "var c2 = new C2(a2);"); |
| 473 | const v8::HeapSnapshot* snapshot_env2 = |
| 474 | v8::HeapProfiler::TakeSnapshot(v8::String::New("env2")); |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 475 | i::HeapSnapshot* i_snapshot_env2 = |
| 476 | const_cast<i::HeapSnapshot*>( |
| 477 | reinterpret_cast<const i::HeapSnapshot*>(snapshot_env2)); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 478 | const v8::HeapGraphNode* global_env2 = GetGlobalObject(snapshot_env2); |
| 479 | // Paint all nodes reachable from global object. |
| 480 | i_snapshot_env2->ClearPaint(); |
| 481 | const_cast<i::HeapEntry*>( |
| 482 | reinterpret_cast<const i::HeapEntry*>(global_env2))->PaintAllReachable(); |
| 483 | |
Russell Brenner | 90bac25 | 2010-11-18 13:33:46 -0800 | [diff] [blame] | 484 | // Verify, that JS global object of env2 has '..2' properties. |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 485 | const v8::HeapGraphNode* a2_node = |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 486 | GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "a2"); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 487 | CHECK_NE(NULL, a2_node); |
| 488 | CHECK_NE( |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 489 | NULL, GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "b2_1")); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 490 | CHECK_NE( |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 491 | NULL, GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "b2_2")); |
| 492 | CHECK_NE(NULL, GetProperty(global_env2, v8::HeapGraphEdge::kShortcut, "c2")); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 493 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 494 | NamedEntriesDetector det; |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 495 | i_snapshot_env2->IterateEntries(&det); |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 496 | CHECK(det.has_A2); |
| 497 | CHECK(det.has_B2); |
| 498 | CHECK(det.has_C2); |
| 499 | |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 500 | /* |
| 501 | // Currently disabled. Too many retaining paths emerge, need to |
| 502 | // reduce the amount. |
| 503 | |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 504 | // Verify 'a2' object retainers. They are: |
| 505 | // - (global object).a2 |
| 506 | // - c2.x1, c2.x2, c2[1] |
| 507 | // - b2_1 and b2_2 closures: via 'x' variable |
| 508 | CHECK_EQ(6, a2_node->GetRetainingPathsCount()); |
| 509 | bool has_global_obj_a2_ref = false; |
| 510 | bool has_c2_x1_ref = false, has_c2_x2_ref = false, has_c2_1_ref = false; |
| 511 | bool has_b2_1_x_ref = false, has_b2_2_x_ref = false; |
| 512 | for (int i = 0; i < a2_node->GetRetainingPathsCount(); ++i) { |
| 513 | const v8::HeapGraphPath* path = a2_node->GetRetainingPath(i); |
| 514 | const int edges_count = path->GetEdgesCount(); |
| 515 | CHECK_GT(edges_count, 0); |
| 516 | const v8::HeapGraphEdge* last_edge = path->GetEdge(edges_count - 1); |
| 517 | v8::String::AsciiValue last_edge_name(last_edge->GetName()); |
| 518 | if (strcmp("a2", *last_edge_name) == 0 |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 519 | && last_edge->GetType() == v8::HeapGraphEdge::kProperty) { |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 520 | has_global_obj_a2_ref = true; |
| 521 | continue; |
| 522 | } |
| 523 | CHECK_GT(edges_count, 1); |
| 524 | const v8::HeapGraphEdge* prev_edge = path->GetEdge(edges_count - 2); |
| 525 | v8::String::AsciiValue prev_edge_name(prev_edge->GetName()); |
| 526 | if (strcmp("x1", *last_edge_name) == 0 |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 527 | && last_edge->GetType() == v8::HeapGraphEdge::kProperty |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 528 | && strcmp("c2", *prev_edge_name) == 0) has_c2_x1_ref = true; |
| 529 | if (strcmp("x2", *last_edge_name) == 0 |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 530 | && last_edge->GetType() == v8::HeapGraphEdge::kProperty |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 531 | && strcmp("c2", *prev_edge_name) == 0) has_c2_x2_ref = true; |
| 532 | if (strcmp("1", *last_edge_name) == 0 |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 533 | && last_edge->GetType() == v8::HeapGraphEdge::kElement |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 534 | && strcmp("c2", *prev_edge_name) == 0) has_c2_1_ref = true; |
| 535 | if (strcmp("x", *last_edge_name) == 0 |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 536 | && last_edge->GetType() == v8::HeapGraphEdge::kContextVariable |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 537 | && strcmp("b2_1", *prev_edge_name) == 0) has_b2_1_x_ref = true; |
| 538 | if (strcmp("x", *last_edge_name) == 0 |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 539 | && last_edge->GetType() == v8::HeapGraphEdge::kContextVariable |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 540 | && strcmp("b2_2", *prev_edge_name) == 0) has_b2_2_x_ref = true; |
| 541 | } |
| 542 | CHECK(has_global_obj_a2_ref); |
| 543 | CHECK(has_c2_x1_ref); |
| 544 | CHECK(has_c2_x2_ref); |
| 545 | CHECK(has_c2_1_ref); |
| 546 | CHECK(has_b2_1_x_ref); |
| 547 | CHECK(has_b2_2_x_ref); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 548 | */ |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 549 | } |
| 550 | |
| 551 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 552 | TEST(HeapSnapshotObjectSizes) { |
| 553 | v8::HandleScope scope; |
| 554 | LocalContext env; |
| 555 | |
| 556 | // -a-> X1 --a |
| 557 | // x -b-> X2 <-| |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 558 | CompileRun( |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 559 | "function X(a, b) { this.a = a; this.b = b; }\n" |
| 560 | "x = new X(new X(), new X());\n" |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 561 | "(function() { x.a.a = x.b; })();"); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 562 | const v8::HeapSnapshot* snapshot = |
| 563 | v8::HeapProfiler::TakeSnapshot(v8::String::New("sizes")); |
| 564 | const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| 565 | const v8::HeapGraphNode* x = |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 566 | GetProperty(global, v8::HeapGraphEdge::kShortcut, "x"); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 567 | CHECK_NE(NULL, x); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 568 | const v8::HeapGraphNode* x1 = |
| 569 | GetProperty(x, v8::HeapGraphEdge::kProperty, "a"); |
| 570 | CHECK_NE(NULL, x1); |
| 571 | const v8::HeapGraphNode* x2 = |
| 572 | GetProperty(x, v8::HeapGraphEdge::kProperty, "b"); |
| 573 | CHECK_NE(NULL, x2); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 574 | |
| 575 | // Test approximate sizes. |
| 576 | CHECK_EQ(x->GetSelfSize() * 3, x->GetRetainedSize(false)); |
| 577 | CHECK_EQ(x1->GetSelfSize(), x1->GetRetainedSize(false)); |
| 578 | CHECK_EQ(x2->GetSelfSize(), x2->GetRetainedSize(false)); |
| 579 | // Test exact sizes. |
| 580 | CHECK_EQ(x->GetSelfSize() * 3, x->GetRetainedSize(true)); |
| 581 | CHECK_EQ(x1->GetSelfSize(), x1->GetRetainedSize(true)); |
| 582 | CHECK_EQ(x2->GetSelfSize(), x2->GetRetainedSize(true)); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 583 | } |
| 584 | |
| 585 | |
| 586 | TEST(HeapSnapshotEntryChildren) { |
| 587 | v8::HandleScope scope; |
| 588 | LocalContext env; |
| 589 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 590 | CompileRun( |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 591 | "function A() { }\n" |
| 592 | "a = new A;"); |
| 593 | const v8::HeapSnapshot* snapshot = |
| 594 | v8::HeapProfiler::TakeSnapshot(v8::String::New("children")); |
| 595 | const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| 596 | for (int i = 0, count = global->GetChildrenCount(); i < count; ++i) { |
| 597 | const v8::HeapGraphEdge* prop = global->GetChild(i); |
| 598 | CHECK_EQ(global, prop->GetFromNode()); |
| 599 | } |
| 600 | const v8::HeapGraphNode* a = |
| 601 | GetProperty(global, v8::HeapGraphEdge::kProperty, "a"); |
| 602 | CHECK_NE(NULL, a); |
| 603 | for (int i = 0, count = a->GetChildrenCount(); i < count; ++i) { |
| 604 | const v8::HeapGraphEdge* prop = a->GetChild(i); |
| 605 | CHECK_EQ(a, prop->GetFromNode()); |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 610 | TEST(HeapSnapshotCodeObjects) { |
| 611 | v8::HandleScope scope; |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 612 | LocalContext env; |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 613 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 614 | CompileRun( |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 615 | "function lazy(x) { return x - 1; }\n" |
| 616 | "function compiled(x) { return x + 1; }\n" |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 617 | "var anonymous = (function() { return function() { return 0; } })();\n" |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 618 | "compiled(1)"); |
| 619 | const v8::HeapSnapshot* snapshot = |
| 620 | v8::HeapProfiler::TakeSnapshot(v8::String::New("code")); |
| 621 | |
| 622 | const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| 623 | const v8::HeapGraphNode* compiled = |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 624 | GetProperty(global, v8::HeapGraphEdge::kShortcut, "compiled"); |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 625 | CHECK_NE(NULL, compiled); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 626 | CHECK_EQ(v8::HeapGraphNode::kClosure, compiled->GetType()); |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 627 | const v8::HeapGraphNode* lazy = |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 628 | GetProperty(global, v8::HeapGraphEdge::kShortcut, "lazy"); |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 629 | CHECK_NE(NULL, lazy); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 630 | CHECK_EQ(v8::HeapGraphNode::kClosure, lazy->GetType()); |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 631 | const v8::HeapGraphNode* anonymous = |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 632 | GetProperty(global, v8::HeapGraphEdge::kShortcut, "anonymous"); |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 633 | CHECK_NE(NULL, anonymous); |
| 634 | CHECK_EQ(v8::HeapGraphNode::kClosure, anonymous->GetType()); |
| 635 | v8::String::AsciiValue anonymous_name(anonymous->GetName()); |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 636 | CHECK_EQ("", *anonymous_name); |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 637 | |
| 638 | // Find references to code. |
| 639 | const v8::HeapGraphNode* compiled_code = |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 640 | GetProperty(compiled, v8::HeapGraphEdge::kInternal, "code"); |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 641 | CHECK_NE(NULL, compiled_code); |
| 642 | const v8::HeapGraphNode* lazy_code = |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 643 | GetProperty(lazy, v8::HeapGraphEdge::kInternal, "code"); |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 644 | CHECK_NE(NULL, lazy_code); |
| 645 | |
| 646 | // Verify that non-compiled code doesn't contain references to "x" |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 647 | // literal, while compiled code does. The scope info is stored in FixedArray |
| 648 | // objects attached to the SharedFunctionInfo. |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 649 | bool compiled_references_x = false, lazy_references_x = false; |
| 650 | for (int i = 0, count = compiled_code->GetChildrenCount(); i < count; ++i) { |
| 651 | const v8::HeapGraphEdge* prop = compiled_code->GetChild(i); |
| 652 | const v8::HeapGraphNode* node = prop->GetToNode(); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 653 | if (node->GetType() == v8::HeapGraphNode::kArray) { |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 654 | if (HasString(node, "x")) { |
| 655 | compiled_references_x = true; |
| 656 | break; |
| 657 | } |
| 658 | } |
| 659 | } |
| 660 | for (int i = 0, count = lazy_code->GetChildrenCount(); i < count; ++i) { |
| 661 | const v8::HeapGraphEdge* prop = lazy_code->GetChild(i); |
| 662 | const v8::HeapGraphNode* node = prop->GetToNode(); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 663 | if (node->GetType() == v8::HeapGraphNode::kArray) { |
Kristian Monsen | 9dcf7e2 | 2010-06-28 14:14:28 +0100 | [diff] [blame] | 664 | if (HasString(node, "x")) { |
| 665 | lazy_references_x = true; |
| 666 | break; |
| 667 | } |
| 668 | } |
| 669 | } |
| 670 | CHECK(compiled_references_x); |
| 671 | CHECK(!lazy_references_x); |
| 672 | } |
| 673 | |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 674 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 675 | TEST(HeapSnapshotHeapNumbers) { |
| 676 | v8::HandleScope scope; |
| 677 | LocalContext env; |
| 678 | CompileRun( |
| 679 | "a = 1; // a is Smi\n" |
| 680 | "b = 2.5; // b is HeapNumber"); |
| 681 | const v8::HeapSnapshot* snapshot = |
| 682 | v8::HeapProfiler::TakeSnapshot(v8::String::New("numbers")); |
| 683 | const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 684 | CHECK_EQ(NULL, GetProperty(global, v8::HeapGraphEdge::kShortcut, "a")); |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 685 | const v8::HeapGraphNode* b = |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 686 | GetProperty(global, v8::HeapGraphEdge::kShortcut, "b"); |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 687 | CHECK_NE(NULL, b); |
| 688 | CHECK_EQ(v8::HeapGraphNode::kHeapNumber, b->GetType()); |
| 689 | } |
| 690 | |
| 691 | |
| 692 | TEST(HeapSnapshotInternalReferences) { |
| 693 | v8::HandleScope scope; |
| 694 | v8::Local<v8::ObjectTemplate> global_template = v8::ObjectTemplate::New(); |
| 695 | global_template->SetInternalFieldCount(2); |
| 696 | LocalContext env(NULL, global_template); |
| 697 | v8::Handle<v8::Object> global_proxy = env->Global(); |
| 698 | v8::Handle<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>(); |
| 699 | CHECK_EQ(2, global->InternalFieldCount()); |
| 700 | v8::Local<v8::Object> obj = v8::Object::New(); |
| 701 | global->SetInternalField(0, v8_num(17)); |
| 702 | global->SetInternalField(1, obj); |
| 703 | const v8::HeapSnapshot* snapshot = |
| 704 | v8::HeapProfiler::TakeSnapshot(v8::String::New("internals")); |
| 705 | const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot); |
| 706 | // The first reference will not present, because it's a Smi. |
| 707 | CHECK_EQ(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "0")); |
| 708 | // The second reference is to an object. |
| 709 | CHECK_NE(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "1")); |
| 710 | } |
| 711 | |
| 712 | |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 713 | // Trying to introduce a check helper for uint64_t causes many |
| 714 | // overloading ambiguities, so it seems easier just to cast |
| 715 | // them to a signed type. |
| 716 | #define CHECK_EQ_UINT64_T(a, b) \ |
| 717 | CHECK_EQ(static_cast<int64_t>(a), static_cast<int64_t>(b)) |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 718 | #define CHECK_NE_UINT64_T(a, b) \ |
| 719 | CHECK((a) != (b)) // NOLINT |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 720 | |
| 721 | TEST(HeapEntryIdsAndGC) { |
| 722 | v8::HandleScope scope; |
| 723 | LocalContext env; |
| 724 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 725 | CompileRun( |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 726 | "function A() {}\n" |
| 727 | "function B(x) { this.x = x; }\n" |
| 728 | "var a = new A();\n" |
| 729 | "var b = new B(a);"); |
| 730 | const v8::HeapSnapshot* snapshot1 = |
| 731 | v8::HeapProfiler::TakeSnapshot(v8::String::New("s1")); |
| 732 | |
| 733 | i::Heap::CollectAllGarbage(true); // Enforce compaction. |
| 734 | |
| 735 | const v8::HeapSnapshot* snapshot2 = |
| 736 | v8::HeapProfiler::TakeSnapshot(v8::String::New("s2")); |
| 737 | |
| 738 | const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1); |
| 739 | const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2); |
| 740 | CHECK_NE_UINT64_T(0, global1->GetId()); |
| 741 | CHECK_EQ_UINT64_T(global1->GetId(), global2->GetId()); |
| 742 | const v8::HeapGraphNode* A1 = |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 743 | GetProperty(global1, v8::HeapGraphEdge::kProperty, "A"); |
| 744 | CHECK_NE(NULL, A1); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 745 | const v8::HeapGraphNode* A2 = |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 746 | GetProperty(global2, v8::HeapGraphEdge::kProperty, "A"); |
| 747 | CHECK_NE(NULL, A2); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 748 | CHECK_NE_UINT64_T(0, A1->GetId()); |
| 749 | CHECK_EQ_UINT64_T(A1->GetId(), A2->GetId()); |
| 750 | const v8::HeapGraphNode* B1 = |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 751 | GetProperty(global1, v8::HeapGraphEdge::kProperty, "B"); |
| 752 | CHECK_NE(NULL, B1); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 753 | const v8::HeapGraphNode* B2 = |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 754 | GetProperty(global2, v8::HeapGraphEdge::kProperty, "B"); |
| 755 | CHECK_NE(NULL, B2); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 756 | CHECK_NE_UINT64_T(0, B1->GetId()); |
| 757 | CHECK_EQ_UINT64_T(B1->GetId(), B2->GetId()); |
| 758 | const v8::HeapGraphNode* a1 = |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 759 | GetProperty(global1, v8::HeapGraphEdge::kProperty, "a"); |
| 760 | CHECK_NE(NULL, a1); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 761 | const v8::HeapGraphNode* a2 = |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 762 | GetProperty(global2, v8::HeapGraphEdge::kProperty, "a"); |
| 763 | CHECK_NE(NULL, a2); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 764 | CHECK_NE_UINT64_T(0, a1->GetId()); |
| 765 | CHECK_EQ_UINT64_T(a1->GetId(), a2->GetId()); |
| 766 | const v8::HeapGraphNode* b1 = |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 767 | GetProperty(global1, v8::HeapGraphEdge::kProperty, "b"); |
| 768 | CHECK_NE(NULL, b1); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 769 | const v8::HeapGraphNode* b2 = |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 770 | GetProperty(global2, v8::HeapGraphEdge::kProperty, "b"); |
| 771 | CHECK_NE(NULL, b2); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 772 | CHECK_NE_UINT64_T(0, b1->GetId()); |
| 773 | CHECK_EQ_UINT64_T(b1->GetId(), b2->GetId()); |
| 774 | } |
| 775 | |
| 776 | |
| 777 | TEST(HeapSnapshotsDiff) { |
| 778 | v8::HandleScope scope; |
| 779 | LocalContext env; |
| 780 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 781 | CompileRun( |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 782 | "function A() {}\n" |
| 783 | "function B(x) { this.x = x; }\n" |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 784 | "function A2(a) { for (var i = 0; i < a; ++i) this[i] = i; }\n" |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 785 | "var a = new A();\n" |
| 786 | "var b = new B(a);"); |
| 787 | const v8::HeapSnapshot* snapshot1 = |
| 788 | v8::HeapProfiler::TakeSnapshot(v8::String::New("s1")); |
| 789 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 790 | CompileRun( |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 791 | "delete a;\n" |
| 792 | "b.x = null;\n" |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 793 | "var a = new A2(20);\n" |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 794 | "var b2 = new B(a);"); |
| 795 | const v8::HeapSnapshot* snapshot2 = |
| 796 | v8::HeapProfiler::TakeSnapshot(v8::String::New("s2")); |
| 797 | |
| 798 | const v8::HeapSnapshotsDiff* diff = snapshot1->CompareWith(snapshot2); |
| 799 | |
| 800 | // Verify additions: ensure that addition of A and B was detected. |
| 801 | const v8::HeapGraphNode* additions_root = diff->GetAdditionsRoot(); |
| 802 | bool found_A = false, found_B = false; |
| 803 | uint64_t s1_A_id = 0; |
| 804 | for (int i = 0, count = additions_root->GetChildrenCount(); i < count; ++i) { |
| 805 | const v8::HeapGraphEdge* prop = additions_root->GetChild(i); |
| 806 | const v8::HeapGraphNode* node = prop->GetToNode(); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 807 | if (node->GetType() == v8::HeapGraphNode::kObject) { |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 808 | v8::String::AsciiValue node_name(node->GetName()); |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 809 | if (strcmp(*node_name, "A2") == 0) { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 810 | CHECK(IsNodeRetainedAs(node, v8::HeapGraphEdge::kShortcut, "a")); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 811 | CHECK(!found_A); |
| 812 | found_A = true; |
| 813 | s1_A_id = node->GetId(); |
| 814 | } else if (strcmp(*node_name, "B") == 0) { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 815 | CHECK(IsNodeRetainedAs(node, v8::HeapGraphEdge::kShortcut, "b2")); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 816 | CHECK(!found_B); |
| 817 | found_B = true; |
| 818 | } |
| 819 | } |
| 820 | } |
| 821 | CHECK(found_A); |
| 822 | CHECK(found_B); |
| 823 | |
| 824 | // Verify deletions: ensure that deletion of A was detected. |
| 825 | const v8::HeapGraphNode* deletions_root = diff->GetDeletionsRoot(); |
| 826 | bool found_A_del = false; |
| 827 | uint64_t s2_A_id = 0; |
| 828 | for (int i = 0, count = deletions_root->GetChildrenCount(); i < count; ++i) { |
| 829 | const v8::HeapGraphEdge* prop = deletions_root->GetChild(i); |
| 830 | const v8::HeapGraphNode* node = prop->GetToNode(); |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 831 | if (node->GetType() == v8::HeapGraphNode::kObject) { |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 832 | v8::String::AsciiValue node_name(node->GetName()); |
| 833 | if (strcmp(*node_name, "A") == 0) { |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 834 | CHECK(IsNodeRetainedAs(node, v8::HeapGraphEdge::kShortcut, "a")); |
Ben Murdoch | 3bec4d2 | 2010-07-22 14:51:16 +0100 | [diff] [blame] | 835 | CHECK(!found_A_del); |
| 836 | found_A_del = true; |
| 837 | s2_A_id = node->GetId(); |
| 838 | } |
| 839 | } |
| 840 | } |
| 841 | CHECK(found_A_del); |
| 842 | CHECK_NE_UINT64_T(0, s1_A_id); |
| 843 | CHECK(s1_A_id != s2_A_id); |
| 844 | } |
| 845 | |
Iain Merrick | 7568138 | 2010-08-19 15:07:18 +0100 | [diff] [blame] | 846 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 847 | TEST(HeapSnapshotRootPreservedAfterSorting) { |
| 848 | v8::HandleScope scope; |
| 849 | LocalContext env; |
| 850 | const v8::HeapSnapshot* snapshot = |
| 851 | v8::HeapProfiler::TakeSnapshot(v8::String::New("s")); |
| 852 | const v8::HeapGraphNode* root1 = snapshot->GetRoot(); |
| 853 | const_cast<i::HeapSnapshot*>(reinterpret_cast<const i::HeapSnapshot*>( |
| 854 | snapshot))->GetSortedEntriesList(); |
| 855 | const v8::HeapGraphNode* root2 = snapshot->GetRoot(); |
| 856 | CHECK_EQ(root1, root2); |
| 857 | } |
| 858 | |
| 859 | |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 860 | static const v8::HeapGraphNode* GetChild( |
| 861 | const v8::HeapGraphNode* node, |
| 862 | v8::HeapGraphNode::Type type, |
| 863 | const char* name, |
| 864 | const v8::HeapGraphNode* after = NULL) { |
| 865 | bool ignore_child = after == NULL ? false : true; |
| 866 | for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) { |
| 867 | const v8::HeapGraphEdge* prop = node->GetChild(i); |
| 868 | const v8::HeapGraphNode* child = prop->GetToNode(); |
| 869 | v8::String::AsciiValue child_name(child->GetName()); |
| 870 | if (!ignore_child |
| 871 | && child->GetType() == type |
| 872 | && strcmp(name, *child_name) == 0) |
| 873 | return child; |
| 874 | if (after != NULL && child == after) ignore_child = false; |
| 875 | } |
| 876 | return NULL; |
| 877 | } |
| 878 | |
| 879 | static bool IsNodeRetainedAs(const v8::HeapGraphNode* node, |
| 880 | int element) { |
| 881 | for (int i = 0, count = node->GetRetainersCount(); i < count; ++i) { |
| 882 | const v8::HeapGraphEdge* prop = node->GetRetainer(i); |
| 883 | if (prop->GetType() == v8::HeapGraphEdge::kElement |
| 884 | && element == prop->GetName()->Int32Value()) |
| 885 | return true; |
| 886 | } |
| 887 | return false; |
| 888 | } |
| 889 | |
| 890 | TEST(AggregatedHeapSnapshot) { |
| 891 | v8::HandleScope scope; |
| 892 | LocalContext env; |
| 893 | |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 894 | CompileRun( |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 895 | "function A() {}\n" |
| 896 | "function B(x) { this.x = x; }\n" |
| 897 | "var a = new A();\n" |
| 898 | "var b = new B(a);"); |
| 899 | const v8::HeapSnapshot* snapshot = |
| 900 | v8::HeapProfiler::TakeSnapshot( |
| 901 | v8::String::New("agg"), v8::HeapSnapshot::kAggregated); |
| 902 | const v8::HeapGraphNode* strings = GetChild(snapshot->GetRoot(), |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 903 | v8::HeapGraphNode::kHidden, |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 904 | "STRING_TYPE"); |
| 905 | CHECK_NE(NULL, strings); |
| 906 | CHECK_NE(0, strings->GetSelfSize()); |
| 907 | CHECK_NE(0, strings->GetInstancesCount()); |
| 908 | const v8::HeapGraphNode* maps = GetChild(snapshot->GetRoot(), |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 909 | v8::HeapGraphNode::kHidden, |
Steve Block | 791712a | 2010-08-27 10:21:07 +0100 | [diff] [blame] | 910 | "MAP_TYPE"); |
| 911 | CHECK_NE(NULL, maps); |
| 912 | CHECK_NE(0, maps->GetSelfSize()); |
| 913 | CHECK_NE(0, maps->GetInstancesCount()); |
| 914 | |
| 915 | const v8::HeapGraphNode* a = GetChild(snapshot->GetRoot(), |
| 916 | v8::HeapGraphNode::kObject, |
| 917 | "A"); |
| 918 | CHECK_NE(NULL, a); |
| 919 | CHECK_NE(0, a->GetSelfSize()); |
| 920 | CHECK_EQ(1, a->GetInstancesCount()); |
| 921 | |
| 922 | const v8::HeapGraphNode* b = GetChild(snapshot->GetRoot(), |
| 923 | v8::HeapGraphNode::kObject, |
| 924 | "B"); |
| 925 | CHECK_NE(NULL, b); |
| 926 | CHECK_NE(0, b->GetSelfSize()); |
| 927 | CHECK_EQ(1, b->GetInstancesCount()); |
| 928 | |
| 929 | const v8::HeapGraphNode* glob_prop = GetChild(snapshot->GetRoot(), |
| 930 | v8::HeapGraphNode::kObject, |
| 931 | "(global property)", |
| 932 | b); |
| 933 | CHECK_NE(NULL, glob_prop); |
| 934 | CHECK_EQ(0, glob_prop->GetSelfSize()); |
| 935 | CHECK_EQ(0, glob_prop->GetInstancesCount()); |
| 936 | CHECK_NE(0, glob_prop->GetChildrenCount()); |
| 937 | |
| 938 | const v8::HeapGraphNode* a_from_glob_prop = GetChild( |
| 939 | glob_prop, |
| 940 | v8::HeapGraphNode::kObject, |
| 941 | "A"); |
| 942 | CHECK_NE(NULL, a_from_glob_prop); |
| 943 | CHECK_EQ(0, a_from_glob_prop->GetSelfSize()); |
| 944 | CHECK_EQ(0, a_from_glob_prop->GetInstancesCount()); |
| 945 | CHECK_EQ(0, a_from_glob_prop->GetChildrenCount()); // Retains nothing. |
| 946 | CHECK(IsNodeRetainedAs(a_from_glob_prop, 1)); // (global propery) has 1 ref. |
| 947 | |
| 948 | const v8::HeapGraphNode* b_with_children = GetChild( |
| 949 | snapshot->GetRoot(), |
| 950 | v8::HeapGraphNode::kObject, |
| 951 | "B", |
| 952 | b); |
| 953 | CHECK_NE(NULL, b_with_children); |
| 954 | CHECK_EQ(0, b_with_children->GetSelfSize()); |
| 955 | CHECK_EQ(0, b_with_children->GetInstancesCount()); |
| 956 | CHECK_NE(0, b_with_children->GetChildrenCount()); |
| 957 | |
| 958 | const v8::HeapGraphNode* a_from_b = GetChild( |
| 959 | b_with_children, |
| 960 | v8::HeapGraphNode::kObject, |
| 961 | "A"); |
| 962 | CHECK_NE(NULL, a_from_b); |
| 963 | CHECK_EQ(0, a_from_b->GetSelfSize()); |
| 964 | CHECK_EQ(0, a_from_b->GetInstancesCount()); |
| 965 | CHECK_EQ(0, a_from_b->GetChildrenCount()); // Retains nothing. |
| 966 | CHECK(IsNodeRetainedAs(a_from_b, 1)); // B has 1 ref to A. |
| 967 | } |
| 968 | |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 969 | |
| 970 | TEST(HeapEntryDominator) { |
| 971 | // The graph looks like this: |
| 972 | // |
| 973 | // -> node1 |
| 974 | // a |^ |
| 975 | // -> node5 ba |
| 976 | // a v| |
| 977 | // node6 -> node2 |
| 978 | // b a |^ |
| 979 | // -> node4 ba |
| 980 | // b v| |
| 981 | // -> node3 |
| 982 | // |
| 983 | // The dominator for all nodes is node6. |
| 984 | |
| 985 | v8::HandleScope scope; |
| 986 | LocalContext env; |
| 987 | |
| 988 | CompileRun( |
| 989 | "function X(a, b) { this.a = a; this.b = b; }\n" |
| 990 | "node6 = new X(new X(new X()), new X(new X(),new X()));\n" |
| 991 | "(function(){\n" |
| 992 | "node6.a.a.b = node6.b.a; // node1 -> node2\n" |
| 993 | "node6.b.a.a = node6.a.a; // node2 -> node1\n" |
| 994 | "node6.b.a.b = node6.b.b; // node2 -> node3\n" |
| 995 | "node6.b.b.a = node6.b.a; // node3 -> node2\n" |
| 996 | "})();"); |
| 997 | |
| 998 | const v8::HeapSnapshot* snapshot = |
| 999 | v8::HeapProfiler::TakeSnapshot(v8::String::New("dominators")); |
| 1000 | |
| 1001 | const v8::HeapGraphNode* global = GetGlobalObject(snapshot); |
| 1002 | CHECK_NE(NULL, global); |
| 1003 | const v8::HeapGraphNode* node6 = |
| 1004 | GetProperty(global, v8::HeapGraphEdge::kShortcut, "node6"); |
| 1005 | CHECK_NE(NULL, node6); |
| 1006 | const v8::HeapGraphNode* node5 = |
| 1007 | GetProperty(node6, v8::HeapGraphEdge::kProperty, "a"); |
| 1008 | CHECK_NE(NULL, node5); |
| 1009 | const v8::HeapGraphNode* node4 = |
| 1010 | GetProperty(node6, v8::HeapGraphEdge::kProperty, "b"); |
| 1011 | CHECK_NE(NULL, node4); |
| 1012 | const v8::HeapGraphNode* node3 = |
| 1013 | GetProperty(node4, v8::HeapGraphEdge::kProperty, "b"); |
| 1014 | CHECK_NE(NULL, node3); |
| 1015 | const v8::HeapGraphNode* node2 = |
| 1016 | GetProperty(node4, v8::HeapGraphEdge::kProperty, "a"); |
| 1017 | CHECK_NE(NULL, node2); |
| 1018 | const v8::HeapGraphNode* node1 = |
| 1019 | GetProperty(node5, v8::HeapGraphEdge::kProperty, "a"); |
| 1020 | CHECK_NE(NULL, node1); |
| 1021 | |
| 1022 | CHECK_EQ(node6, node1->GetDominatorNode()); |
| 1023 | CHECK_EQ(node6, node2->GetDominatorNode()); |
| 1024 | CHECK_EQ(node6, node3->GetDominatorNode()); |
| 1025 | CHECK_EQ(node6, node4->GetDominatorNode()); |
| 1026 | CHECK_EQ(node6, node5->GetDominatorNode()); |
| 1027 | } |
| 1028 | |
| 1029 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1030 | namespace { |
| 1031 | |
| 1032 | class TestJSONStream : public v8::OutputStream { |
| 1033 | public: |
| 1034 | TestJSONStream() : eos_signaled_(0), abort_countdown_(-1) {} |
| 1035 | explicit TestJSONStream(int abort_countdown) |
| 1036 | : eos_signaled_(0), abort_countdown_(abort_countdown) {} |
| 1037 | virtual ~TestJSONStream() {} |
| 1038 | virtual void EndOfStream() { ++eos_signaled_; } |
| 1039 | virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) { |
| 1040 | if (abort_countdown_ > 0) --abort_countdown_; |
| 1041 | if (abort_countdown_ == 0) return kAbort; |
| 1042 | CHECK_GT(chars_written, 0); |
| 1043 | i::Vector<char> chunk = buffer_.AddBlock(chars_written, '\0'); |
| 1044 | memcpy(chunk.start(), buffer, chars_written); |
| 1045 | return kContinue; |
| 1046 | } |
| 1047 | void WriteTo(i::Vector<char> dest) { buffer_.WriteTo(dest); } |
| 1048 | int eos_signaled() { return eos_signaled_; } |
| 1049 | int size() { return buffer_.size(); } |
| 1050 | private: |
| 1051 | i::Collector<char> buffer_; |
| 1052 | int eos_signaled_; |
| 1053 | int abort_countdown_; |
| 1054 | }; |
| 1055 | |
| 1056 | class AsciiResource: public v8::String::ExternalAsciiStringResource { |
| 1057 | public: |
| 1058 | explicit AsciiResource(i::Vector<char> string): data_(string.start()) { |
| 1059 | length_ = string.length(); |
| 1060 | } |
| 1061 | virtual const char* data() const { return data_; } |
| 1062 | virtual size_t length() const { return length_; } |
| 1063 | private: |
| 1064 | const char* data_; |
| 1065 | size_t length_; |
| 1066 | }; |
| 1067 | |
| 1068 | } // namespace |
| 1069 | |
| 1070 | TEST(HeapSnapshotJSONSerialization) { |
| 1071 | v8::HandleScope scope; |
| 1072 | LocalContext env; |
| 1073 | |
| 1074 | #define STRING_LITERAL_FOR_TEST \ |
| 1075 | "\"String \\n\\r\\u0008\\u0081\\u0101\\u0801\\u8001\"" |
Ben Murdoch | f87a203 | 2010-10-22 12:50:53 +0100 | [diff] [blame] | 1076 | CompileRun( |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1077 | "function A(s) { this.s = s; }\n" |
| 1078 | "function B(x) { this.x = x; }\n" |
| 1079 | "var a = new A(" STRING_LITERAL_FOR_TEST ");\n" |
| 1080 | "var b = new B(a);"); |
| 1081 | const v8::HeapSnapshot* snapshot = |
| 1082 | v8::HeapProfiler::TakeSnapshot(v8::String::New("json")); |
| 1083 | TestJSONStream stream; |
| 1084 | snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON); |
| 1085 | CHECK_GT(stream.size(), 0); |
| 1086 | CHECK_EQ(1, stream.eos_signaled()); |
| 1087 | i::ScopedVector<char> json(stream.size()); |
| 1088 | stream.WriteTo(json); |
| 1089 | |
| 1090 | // Verify that snapshot string is valid JSON. |
| 1091 | AsciiResource json_res(json); |
| 1092 | v8::Local<v8::String> json_string = v8::String::NewExternal(&json_res); |
| 1093 | env->Global()->Set(v8::String::New("json_snapshot"), json_string); |
| 1094 | v8::Local<v8::Value> snapshot_parse_result = CompileRun( |
| 1095 | "var parsed = JSON.parse(json_snapshot); true;"); |
| 1096 | CHECK(!snapshot_parse_result.IsEmpty()); |
| 1097 | |
| 1098 | // Verify that snapshot object has required fields. |
| 1099 | v8::Local<v8::Object> parsed_snapshot = |
| 1100 | env->Global()->Get(v8::String::New("parsed"))->ToObject(); |
| 1101 | CHECK(parsed_snapshot->Has(v8::String::New("snapshot"))); |
| 1102 | CHECK(parsed_snapshot->Has(v8::String::New("nodes"))); |
| 1103 | CHECK(parsed_snapshot->Has(v8::String::New("strings"))); |
| 1104 | |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1105 | // Get node and edge "member" offsets. |
| 1106 | v8::Local<v8::Value> meta_analysis_result = CompileRun( |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1107 | "var parsed_meta = parsed.nodes[0];\n" |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1108 | "var children_count_offset =" |
| 1109 | " parsed_meta.fields.indexOf('children_count');\n" |
| 1110 | "var children_offset =" |
| 1111 | " parsed_meta.fields.indexOf('children');\n" |
| 1112 | "var children_meta =" |
| 1113 | " parsed_meta.types[children_offset];\n" |
| 1114 | "var child_fields_count = children_meta.fields.length;\n" |
| 1115 | "var child_type_offset =" |
| 1116 | " children_meta.fields.indexOf('type');\n" |
| 1117 | "var child_name_offset =" |
| 1118 | " children_meta.fields.indexOf('name_or_index');\n" |
| 1119 | "var child_to_node_offset =" |
| 1120 | " children_meta.fields.indexOf('to_node');\n" |
| 1121 | "var property_type =" |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1122 | " children_meta.types[child_type_offset].indexOf('property');\n" |
| 1123 | "var shortcut_type =" |
| 1124 | " children_meta.types[child_type_offset].indexOf('shortcut');"); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1125 | CHECK(!meta_analysis_result.IsEmpty()); |
| 1126 | |
| 1127 | // A helper function for processing encoded nodes. |
| 1128 | CompileRun( |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1129 | "function GetChildPosByProperty(pos, prop_name, prop_type) {\n" |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1130 | " var nodes = parsed.nodes;\n" |
| 1131 | " var strings = parsed.strings;\n" |
| 1132 | " for (var i = 0,\n" |
| 1133 | " count = nodes[pos + children_count_offset] * child_fields_count;\n" |
| 1134 | " i < count; i += child_fields_count) {\n" |
| 1135 | " var child_pos = pos + children_offset + i;\n" |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1136 | " if (nodes[child_pos + child_type_offset] === prop_type\n" |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1137 | " && strings[nodes[child_pos + child_name_offset]] === prop_name)\n" |
| 1138 | " return nodes[child_pos + child_to_node_offset];\n" |
| 1139 | " }\n" |
| 1140 | " return null;\n" |
| 1141 | "}\n"); |
| 1142 | // Get the string index using the path: <root> -> <global>.b.x.s |
| 1143 | v8::Local<v8::Value> string_obj_pos_val = CompileRun( |
| 1144 | "GetChildPosByProperty(\n" |
| 1145 | " GetChildPosByProperty(\n" |
| 1146 | " GetChildPosByProperty(" |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1147 | " parsed.nodes[1 + children_offset + child_to_node_offset]," |
| 1148 | " \"b\",shortcut_type),\n" |
| 1149 | " \"x\", property_type)," |
| 1150 | " \"s\", property_type)"); |
Kristian Monsen | 0d5e116 | 2010-09-30 15:31:59 +0100 | [diff] [blame] | 1151 | CHECK(!string_obj_pos_val.IsEmpty()); |
| 1152 | int string_obj_pos = |
| 1153 | static_cast<int>(string_obj_pos_val->ToNumber()->Value()); |
| 1154 | v8::Local<v8::Object> nodes_array = |
| 1155 | parsed_snapshot->Get(v8::String::New("nodes"))->ToObject(); |
| 1156 | int string_index = static_cast<int>( |
| 1157 | nodes_array->Get(string_obj_pos + 1)->ToNumber()->Value()); |
| 1158 | CHECK_GT(string_index, 0); |
| 1159 | v8::Local<v8::Object> strings_array = |
| 1160 | parsed_snapshot->Get(v8::String::New("strings"))->ToObject(); |
| 1161 | v8::Local<v8::String> string = strings_array->Get(string_index)->ToString(); |
| 1162 | v8::Local<v8::String> ref_string = |
| 1163 | CompileRun(STRING_LITERAL_FOR_TEST)->ToString(); |
| 1164 | #undef STRING_LITERAL_FOR_TEST |
| 1165 | CHECK_EQ(*v8::String::Utf8Value(ref_string), |
| 1166 | *v8::String::Utf8Value(string)); |
| 1167 | } |
| 1168 | |
| 1169 | |
| 1170 | TEST(HeapSnapshotJSONSerializationAborting) { |
| 1171 | v8::HandleScope scope; |
| 1172 | LocalContext env; |
| 1173 | const v8::HeapSnapshot* snapshot = |
| 1174 | v8::HeapProfiler::TakeSnapshot(v8::String::New("abort")); |
| 1175 | TestJSONStream stream(5); |
| 1176 | snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON); |
| 1177 | CHECK_GT(stream.size(), 0); |
| 1178 | CHECK_EQ(0, stream.eos_signaled()); |
| 1179 | } |
| 1180 | |
Shimeng (Simon) Wang | 8a31eba | 2010-12-06 19:01:33 -0800 | [diff] [blame] | 1181 | |
| 1182 | // Must not crash in debug mode. |
| 1183 | TEST(AggregatedHeapSnapshotJSONSerialization) { |
| 1184 | v8::HandleScope scope; |
| 1185 | LocalContext env; |
| 1186 | |
| 1187 | const v8::HeapSnapshot* snapshot = |
| 1188 | v8::HeapProfiler::TakeSnapshot( |
| 1189 | v8::String::New("agg"), v8::HeapSnapshot::kAggregated); |
| 1190 | TestJSONStream stream; |
| 1191 | snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON); |
| 1192 | CHECK_GT(stream.size(), 0); |
| 1193 | CHECK_EQ(1, stream.eos_signaled()); |
| 1194 | } |
| 1195 | |
Ben Murdoch | b0fe162 | 2011-05-05 13:52:32 +0100 | [diff] [blame^] | 1196 | |
| 1197 | TEST(HeapSnapshotGetNodeById) { |
| 1198 | v8::HandleScope scope; |
| 1199 | LocalContext env; |
| 1200 | |
| 1201 | const v8::HeapSnapshot* snapshot = |
| 1202 | v8::HeapProfiler::TakeSnapshot(v8::String::New("id")); |
| 1203 | const v8::HeapGraphNode* root = snapshot->GetRoot(); |
| 1204 | CHECK_EQ(root, snapshot->GetNodeById(root->GetId())); |
| 1205 | for (int i = 0, count = root->GetChildrenCount(); i < count; ++i) { |
| 1206 | const v8::HeapGraphEdge* prop = root->GetChild(i); |
| 1207 | CHECK_EQ( |
| 1208 | prop->GetToNode(), snapshot->GetNodeById(prop->GetToNode()->GetId())); |
| 1209 | } |
| 1210 | // Check a big id, which should not exist yet. |
| 1211 | CHECK_EQ(NULL, snapshot->GetNodeById(0x1000000UL)); |
| 1212 | } |
| 1213 | |
| 1214 | |
| 1215 | namespace { |
| 1216 | |
| 1217 | class TestActivityControl : public v8::ActivityControl { |
| 1218 | public: |
| 1219 | explicit TestActivityControl(int abort_count) |
| 1220 | : done_(0), total_(0), abort_count_(abort_count) {} |
| 1221 | ControlOption ReportProgressValue(int done, int total) { |
| 1222 | done_ = done; |
| 1223 | total_ = total; |
| 1224 | return --abort_count_ != 0 ? kContinue : kAbort; |
| 1225 | } |
| 1226 | int done() { return done_; } |
| 1227 | int total() { return total_; } |
| 1228 | |
| 1229 | private: |
| 1230 | int done_; |
| 1231 | int total_; |
| 1232 | int abort_count_; |
| 1233 | }; |
| 1234 | } |
| 1235 | |
| 1236 | TEST(TakeHeapSnapshotAborting) { |
| 1237 | v8::HandleScope scope; |
| 1238 | LocalContext env; |
| 1239 | |
| 1240 | const int snapshots_count = v8::HeapProfiler::GetSnapshotsCount(); |
| 1241 | TestActivityControl aborting_control(3); |
| 1242 | const v8::HeapSnapshot* no_snapshot = |
| 1243 | v8::HeapProfiler::TakeSnapshot(v8::String::New("abort"), |
| 1244 | v8::HeapSnapshot::kFull, |
| 1245 | &aborting_control); |
| 1246 | CHECK_EQ(NULL, no_snapshot); |
| 1247 | CHECK_EQ(snapshots_count, v8::HeapProfiler::GetSnapshotsCount()); |
| 1248 | CHECK_GT(aborting_control.total(), aborting_control.done()); |
| 1249 | |
| 1250 | TestActivityControl control(-1); // Don't abort. |
| 1251 | const v8::HeapSnapshot* snapshot = |
| 1252 | v8::HeapProfiler::TakeSnapshot(v8::String::New("full"), |
| 1253 | v8::HeapSnapshot::kFull, |
| 1254 | &control); |
| 1255 | CHECK_NE(NULL, snapshot); |
| 1256 | CHECK_EQ(snapshots_count + 1, v8::HeapProfiler::GetSnapshotsCount()); |
| 1257 | CHECK_EQ(control.total(), control.done()); |
| 1258 | CHECK_GT(control.total(), 0); |
| 1259 | } |
| 1260 | |
Steve Block | a7e24c1 | 2009-10-30 11:49:00 +0000 | [diff] [blame] | 1261 | #endif // ENABLE_LOGGING_AND_PROFILING |