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28 // Tests for heap profiler
34 #include "include/v8-profiler.h"
35 #include "src/allocation-tracker.h"
36 #include "src/debug.h"
37 #include "src/hashmap.h"
38 #include "src/heap-profiler.h"
39 #include "src/snapshot.h"
40 #include "src/utils-inl.h"
41 #include "src/xdk-utils.h"
42 #include "test/cctest/cctest.h"
44 using i::AllocationTraceNode;
45 using i::AllocationTraceTree;
46 using i::AllocationTracker;
52 class NamedEntriesDetector {
54 NamedEntriesDetector()
55 : has_A2(false), has_B2(false), has_C2(false) {
58 void CheckEntry(i::HeapEntry* entry) {
59 if (strcmp(entry->name(), "A2") == 0) has_A2 = true;
60 if (strcmp(entry->name(), "B2") == 0) has_B2 = true;
61 if (strcmp(entry->name(), "C2") == 0) has_C2 = true;
64 static bool AddressesMatch(void* key1, void* key2) {
68 void CheckAllReachables(i::HeapEntry* root) {
69 i::HashMap visited(AddressesMatch);
70 i::List<i::HeapEntry*> list(10);
73 while (!list.is_empty()) {
74 i::HeapEntry* entry = list.RemoveLast();
75 i::Vector<i::HeapGraphEdge*> children = entry->children();
76 for (int i = 0; i < children.length(); ++i) {
77 if (children[i]->type() == i::HeapGraphEdge::kShortcut) continue;
78 i::HeapEntry* child = children[i]->to();
79 i::HashMap::Entry* entry = visited.Lookup(
80 reinterpret_cast<void*>(child),
81 static_cast<uint32_t>(reinterpret_cast<uintptr_t>(child)),
85 entry->value = reinterpret_cast<void*>(1);
100 static const v8::HeapGraphNode* GetGlobalObject(
101 const v8::HeapSnapshot* snapshot) {
102 CHECK_EQ(2, snapshot->GetRoot()->GetChildrenCount());
103 // The 0th-child is (GC Roots), 1st is the user root.
104 const v8::HeapGraphNode* global_obj =
105 snapshot->GetRoot()->GetChild(1)->GetToNode();
106 CHECK_EQ(0, strncmp("Object", const_cast<i::HeapEntry*>(
107 reinterpret_cast<const i::HeapEntry*>(global_obj))->name(), 6));
112 static const v8::HeapGraphNode* GetProperty(const v8::HeapGraphNode* node,
113 v8::HeapGraphEdge::Type type,
115 for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
116 const v8::HeapGraphEdge* prop = node->GetChild(i);
117 v8::String::Utf8Value prop_name(prop->GetName());
118 if (prop->GetType() == type && strcmp(name, *prop_name) == 0)
119 return prop->GetToNode();
125 static bool HasString(const v8::HeapGraphNode* node, const char* contents) {
126 for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
127 const v8::HeapGraphEdge* prop = node->GetChild(i);
128 const v8::HeapGraphNode* node = prop->GetToNode();
129 if (node->GetType() == v8::HeapGraphNode::kString) {
130 v8::String::Utf8Value node_name(node->GetName());
131 if (strcmp(contents, *node_name) == 0) return true;
138 static bool AddressesMatch(void* key1, void* key2) {
143 // Check that snapshot has no unretained entries except root.
144 static bool ValidateSnapshot(const v8::HeapSnapshot* snapshot, int depth = 3) {
145 i::HeapSnapshot* heap_snapshot = const_cast<i::HeapSnapshot*>(
146 reinterpret_cast<const i::HeapSnapshot*>(snapshot));
148 i::HashMap visited(AddressesMatch);
149 i::List<i::HeapGraphEdge>& edges = heap_snapshot->edges();
150 for (int i = 0; i < edges.length(); ++i) {
151 i::HashMap::Entry* entry = visited.Lookup(
152 reinterpret_cast<void*>(edges[i].to()),
153 static_cast<uint32_t>(reinterpret_cast<uintptr_t>(edges[i].to())),
155 uint32_t ref_count = static_cast<uint32_t>(
156 reinterpret_cast<uintptr_t>(entry->value));
157 entry->value = reinterpret_cast<void*>(ref_count + 1);
159 uint32_t unretained_entries_count = 0;
160 i::List<i::HeapEntry>& entries = heap_snapshot->entries();
161 for (int i = 0; i < entries.length(); ++i) {
162 i::HashMap::Entry* entry = visited.Lookup(
163 reinterpret_cast<void*>(&entries[i]),
164 static_cast<uint32_t>(reinterpret_cast<uintptr_t>(&entries[i])),
166 if (!entry && entries[i].id() != 1) {
167 entries[i].Print("entry with no retainer", "", depth, 0);
168 ++unretained_entries_count;
171 return unretained_entries_count == 0;
177 v8::HandleScope scope(env2->GetIsolate());
178 v8::HeapProfiler* heap_profiler = env2->GetIsolate()->GetHeapProfiler();
182 "function B2(x) { return function() { return typeof x; }; }\n"
183 "function C2(x) { this.x1 = x; this.x2 = x; this[1] = x; }\n"
184 "var a2 = new A2();\n"
185 "var b2_1 = new B2(a2), b2_2 = new B2(a2);\n"
186 "var c2 = new C2(a2);");
187 const v8::HeapSnapshot* snapshot_env2 =
188 heap_profiler->TakeHeapSnapshot(v8_str("env2"));
189 CHECK(ValidateSnapshot(snapshot_env2));
190 const v8::HeapGraphNode* global_env2 = GetGlobalObject(snapshot_env2);
192 // Verify, that JS global object of env2 has '..2' properties.
193 const v8::HeapGraphNode* a2_node =
194 GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "a2");
195 CHECK_NE(NULL, a2_node);
197 NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b2_1"));
199 NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "b2_2"));
200 CHECK_NE(NULL, GetProperty(global_env2, v8::HeapGraphEdge::kProperty, "c2"));
202 NamedEntriesDetector det;
203 det.CheckAllReachables(const_cast<i::HeapEntry*>(
204 reinterpret_cast<const i::HeapEntry*>(global_env2)));
211 TEST(HeapSnapshotObjectSizes) {
213 v8::HandleScope scope(env->GetIsolate());
214 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
219 "function X(a, b) { this.a = a; this.b = b; }\n"
220 "x = new X(new X(), new X());\n"
222 "(function() { x.a.a = x.b; })();");
223 const v8::HeapSnapshot* snapshot =
224 heap_profiler->TakeHeapSnapshot(v8_str("sizes"));
225 CHECK(ValidateSnapshot(snapshot));
226 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
227 const v8::HeapGraphNode* x =
228 GetProperty(global, v8::HeapGraphEdge::kProperty, "x");
230 const v8::HeapGraphNode* x1 =
231 GetProperty(x, v8::HeapGraphEdge::kProperty, "a");
233 const v8::HeapGraphNode* x2 =
234 GetProperty(x, v8::HeapGraphEdge::kProperty, "b");
238 CHECK_NE(0, static_cast<int>(x->GetShallowSize()));
239 CHECK_NE(0, static_cast<int>(x1->GetShallowSize()));
240 CHECK_NE(0, static_cast<int>(x2->GetShallowSize()));
244 TEST(BoundFunctionInSnapshot) {
246 v8::HandleScope scope(env->GetIsolate());
247 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
249 "function myFunction(a, b) { this.a = a; this.b = b; }\n"
250 "function AAAAA() {}\n"
251 "boundFunction = myFunction.bind(new AAAAA(), 20, new Number(12)); \n");
252 const v8::HeapSnapshot* snapshot =
253 heap_profiler->TakeHeapSnapshot(v8_str("sizes"));
254 CHECK(ValidateSnapshot(snapshot));
255 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
256 const v8::HeapGraphNode* f =
257 GetProperty(global, v8::HeapGraphEdge::kProperty, "boundFunction");
259 CHECK_EQ(v8::String::NewFromUtf8(env->GetIsolate(), "native_bind"),
261 const v8::HeapGraphNode* bindings =
262 GetProperty(f, v8::HeapGraphEdge::kInternal, "bindings");
263 CHECK_NE(NULL, bindings);
264 CHECK_EQ(v8::HeapGraphNode::kArray, bindings->GetType());
265 CHECK_EQ(4, bindings->GetChildrenCount());
267 const v8::HeapGraphNode* bound_this = GetProperty(
268 f, v8::HeapGraphEdge::kShortcut, "bound_this");
270 CHECK_EQ(v8::HeapGraphNode::kObject, bound_this->GetType());
272 const v8::HeapGraphNode* bound_function = GetProperty(
273 f, v8::HeapGraphEdge::kShortcut, "bound_function");
274 CHECK(bound_function);
275 CHECK_EQ(v8::HeapGraphNode::kClosure, bound_function->GetType());
277 const v8::HeapGraphNode* bound_argument = GetProperty(
278 f, v8::HeapGraphEdge::kShortcut, "bound_argument_1");
279 CHECK(bound_argument);
280 CHECK_EQ(v8::HeapGraphNode::kObject, bound_argument->GetType());
284 TEST(HeapSnapshotEntryChildren) {
286 v8::HandleScope scope(env->GetIsolate());
287 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
292 const v8::HeapSnapshot* snapshot =
293 heap_profiler->TakeHeapSnapshot(v8_str("children"));
294 CHECK(ValidateSnapshot(snapshot));
295 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
296 for (int i = 0, count = global->GetChildrenCount(); i < count; ++i) {
297 const v8::HeapGraphEdge* prop = global->GetChild(i);
298 CHECK_EQ(global, prop->GetFromNode());
300 const v8::HeapGraphNode* a =
301 GetProperty(global, v8::HeapGraphEdge::kProperty, "a");
303 for (int i = 0, count = a->GetChildrenCount(); i < count; ++i) {
304 const v8::HeapGraphEdge* prop = a->GetChild(i);
305 CHECK_EQ(a, prop->GetFromNode());
310 TEST(HeapSnapshotCodeObjects) {
312 v8::HandleScope scope(env->GetIsolate());
313 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
316 "function lazy(x) { return x - 1; }\n"
317 "function compiled(x) { return x + 1; }\n"
318 "var anonymous = (function() { return function() { return 0; } })();\n"
320 const v8::HeapSnapshot* snapshot =
321 heap_profiler->TakeHeapSnapshot(v8_str("code"));
322 CHECK(ValidateSnapshot(snapshot));
324 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
325 const v8::HeapGraphNode* compiled =
326 GetProperty(global, v8::HeapGraphEdge::kProperty, "compiled");
327 CHECK_NE(NULL, compiled);
328 CHECK_EQ(v8::HeapGraphNode::kClosure, compiled->GetType());
329 const v8::HeapGraphNode* lazy =
330 GetProperty(global, v8::HeapGraphEdge::kProperty, "lazy");
331 CHECK_NE(NULL, lazy);
332 CHECK_EQ(v8::HeapGraphNode::kClosure, lazy->GetType());
333 const v8::HeapGraphNode* anonymous =
334 GetProperty(global, v8::HeapGraphEdge::kProperty, "anonymous");
335 CHECK_NE(NULL, anonymous);
336 CHECK_EQ(v8::HeapGraphNode::kClosure, anonymous->GetType());
337 v8::String::Utf8Value anonymous_name(anonymous->GetName());
338 CHECK_EQ("", *anonymous_name);
340 // Find references to code.
341 const v8::HeapGraphNode* compiled_code =
342 GetProperty(compiled, v8::HeapGraphEdge::kInternal, "shared");
343 CHECK_NE(NULL, compiled_code);
344 const v8::HeapGraphNode* lazy_code =
345 GetProperty(lazy, v8::HeapGraphEdge::kInternal, "shared");
346 CHECK_NE(NULL, lazy_code);
348 // Check that there's no strong next_code_link. There might be a weak one
349 // but might be not, so we can't check that fact.
350 const v8::HeapGraphNode* code =
351 GetProperty(compiled_code, v8::HeapGraphEdge::kInternal, "code");
352 CHECK_NE(NULL, code);
353 const v8::HeapGraphNode* next_code_link =
354 GetProperty(code, v8::HeapGraphEdge::kInternal, "code");
355 CHECK_EQ(NULL, next_code_link);
357 // Verify that non-compiled code doesn't contain references to "x"
358 // literal, while compiled code does. The scope info is stored in FixedArray
359 // objects attached to the SharedFunctionInfo.
360 bool compiled_references_x = false, lazy_references_x = false;
361 for (int i = 0, count = compiled_code->GetChildrenCount(); i < count; ++i) {
362 const v8::HeapGraphEdge* prop = compiled_code->GetChild(i);
363 const v8::HeapGraphNode* node = prop->GetToNode();
364 if (node->GetType() == v8::HeapGraphNode::kArray) {
365 if (HasString(node, "x")) {
366 compiled_references_x = true;
371 for (int i = 0, count = lazy_code->GetChildrenCount(); i < count; ++i) {
372 const v8::HeapGraphEdge* prop = lazy_code->GetChild(i);
373 const v8::HeapGraphNode* node = prop->GetToNode();
374 if (node->GetType() == v8::HeapGraphNode::kArray) {
375 if (HasString(node, "x")) {
376 lazy_references_x = true;
381 CHECK(compiled_references_x);
382 CHECK(!lazy_references_x);
386 TEST(HeapSnapshotHeapNumbers) {
388 v8::HandleScope scope(env->GetIsolate());
389 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
391 "a = 1; // a is Smi\n"
392 "b = 2.5; // b is HeapNumber");
393 const v8::HeapSnapshot* snapshot =
394 heap_profiler->TakeHeapSnapshot(v8_str("numbers"));
395 CHECK(ValidateSnapshot(snapshot));
396 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
397 CHECK_EQ(NULL, GetProperty(global, v8::HeapGraphEdge::kProperty, "a"));
398 const v8::HeapGraphNode* b =
399 GetProperty(global, v8::HeapGraphEdge::kProperty, "b");
401 CHECK_EQ(v8::HeapGraphNode::kHeapNumber, b->GetType());
405 TEST(HeapSnapshotSlicedString) {
407 v8::HandleScope scope(env->GetIsolate());
408 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
410 "parent_string = \"123456789.123456789.123456789.123456789.123456789."
411 "123456789.123456789.123456789.123456789.123456789."
412 "123456789.123456789.123456789.123456789.123456789."
413 "123456789.123456789.123456789.123456789.123456789.\";"
414 "child_string = parent_string.slice(100);");
415 const v8::HeapSnapshot* snapshot =
416 heap_profiler->TakeHeapSnapshot(v8_str("strings"));
417 CHECK(ValidateSnapshot(snapshot));
418 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
419 const v8::HeapGraphNode* parent_string =
420 GetProperty(global, v8::HeapGraphEdge::kProperty, "parent_string");
421 CHECK_NE(NULL, parent_string);
422 const v8::HeapGraphNode* child_string =
423 GetProperty(global, v8::HeapGraphEdge::kProperty, "child_string");
424 CHECK_NE(NULL, child_string);
425 CHECK_EQ(v8::HeapGraphNode::kSlicedString, child_string->GetType());
426 const v8::HeapGraphNode* parent =
427 GetProperty(child_string, v8::HeapGraphEdge::kInternal, "parent");
428 CHECK_EQ(parent_string, parent);
429 heap_profiler->DeleteAllHeapSnapshots();
433 TEST(HeapSnapshotConsString) {
434 v8::Isolate* isolate = CcTest::isolate();
435 v8::HandleScope scope(isolate);
436 v8::Local<v8::ObjectTemplate> global_template =
437 v8::ObjectTemplate::New(isolate);
438 global_template->SetInternalFieldCount(1);
439 LocalContext env(NULL, global_template);
440 v8::Handle<v8::Object> global_proxy = env->Global();
441 v8::Handle<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>();
442 CHECK_EQ(1, global->InternalFieldCount());
444 i::Factory* factory = CcTest::i_isolate()->factory();
445 i::Handle<i::String> first = factory->NewStringFromStaticChars("0123456789");
446 i::Handle<i::String> second = factory->NewStringFromStaticChars("0123456789");
447 i::Handle<i::String> cons_string =
448 factory->NewConsString(first, second).ToHandleChecked();
450 global->SetInternalField(0, v8::ToApiHandle<v8::String>(cons_string));
452 v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
453 const v8::HeapSnapshot* snapshot =
454 heap_profiler->TakeHeapSnapshot(v8_str("cons_strings"));
455 CHECK(ValidateSnapshot(snapshot));
456 const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot);
458 const v8::HeapGraphNode* string_node =
459 GetProperty(global_node, v8::HeapGraphEdge::kInternal, "0");
460 CHECK_NE(NULL, string_node);
461 CHECK_EQ(v8::HeapGraphNode::kConsString, string_node->GetType());
463 const v8::HeapGraphNode* first_node =
464 GetProperty(string_node, v8::HeapGraphEdge::kInternal, "first");
465 CHECK_EQ(v8::HeapGraphNode::kString, first_node->GetType());
467 const v8::HeapGraphNode* second_node =
468 GetProperty(string_node, v8::HeapGraphEdge::kInternal, "second");
469 CHECK_EQ(v8::HeapGraphNode::kString, second_node->GetType());
471 heap_profiler->DeleteAllHeapSnapshots();
475 TEST(HeapSnapshotSymbol) {
477 v8::HandleScope scope(env->GetIsolate());
478 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
480 CompileRun("a = Symbol('mySymbol');\n");
481 const v8::HeapSnapshot* snapshot =
482 heap_profiler->TakeHeapSnapshot(v8_str("Symbol"));
483 CHECK(ValidateSnapshot(snapshot));
484 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
485 const v8::HeapGraphNode* a =
486 GetProperty(global, v8::HeapGraphEdge::kProperty, "a");
488 CHECK_EQ(a->GetType(), v8::HeapGraphNode::kSymbol);
489 CHECK_EQ(v8_str("symbol"), a->GetName());
490 const v8::HeapGraphNode* name =
491 GetProperty(a, v8::HeapGraphEdge::kInternal, "name");
492 CHECK_NE(NULL, name);
493 CHECK_EQ(v8_str("mySymbol"), name->GetName());
497 TEST(HeapSnapshotWeakCollection) {
499 v8::HandleScope scope(env->GetIsolate());
500 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
503 "k = {}; v = {}; s = 'str';\n"
504 "ws = new WeakSet(); ws.add(k); ws.add(v); ws[s] = s;\n"
505 "wm = new WeakMap(); wm.set(k, v); wm[s] = s;\n");
506 const v8::HeapSnapshot* snapshot =
507 heap_profiler->TakeHeapSnapshot(v8_str("WeakCollections"));
508 CHECK(ValidateSnapshot(snapshot));
509 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
510 const v8::HeapGraphNode* k =
511 GetProperty(global, v8::HeapGraphEdge::kProperty, "k");
513 const v8::HeapGraphNode* v =
514 GetProperty(global, v8::HeapGraphEdge::kProperty, "v");
516 const v8::HeapGraphNode* s =
517 GetProperty(global, v8::HeapGraphEdge::kProperty, "s");
520 const v8::HeapGraphNode* ws =
521 GetProperty(global, v8::HeapGraphEdge::kProperty, "ws");
523 CHECK_EQ(v8::HeapGraphNode::kObject, ws->GetType());
524 CHECK_EQ(v8_str("WeakSet"), ws->GetName());
526 const v8::HeapGraphNode* ws_table =
527 GetProperty(ws, v8::HeapGraphEdge::kInternal, "table");
528 CHECK_EQ(v8::HeapGraphNode::kArray, ws_table->GetType());
529 CHECK_GT(ws_table->GetChildrenCount(), 0);
530 int weak_entries = 0;
531 for (int i = 0, count = ws_table->GetChildrenCount(); i < count; ++i) {
532 const v8::HeapGraphEdge* prop = ws_table->GetChild(i);
533 if (prop->GetType() != v8::HeapGraphEdge::kWeak) continue;
534 if (k->GetId() == prop->GetToNode()->GetId()) {
538 CHECK_EQ(1, weak_entries);
539 const v8::HeapGraphNode* ws_s =
540 GetProperty(ws, v8::HeapGraphEdge::kProperty, "str");
541 CHECK_NE(NULL, ws_s);
542 CHECK_EQ(static_cast<int>(s->GetId()), static_cast<int>(ws_s->GetId()));
544 const v8::HeapGraphNode* wm =
545 GetProperty(global, v8::HeapGraphEdge::kProperty, "wm");
547 CHECK_EQ(v8::HeapGraphNode::kObject, wm->GetType());
548 CHECK_EQ(v8_str("WeakMap"), wm->GetName());
550 const v8::HeapGraphNode* wm_table =
551 GetProperty(wm, v8::HeapGraphEdge::kInternal, "table");
552 CHECK_EQ(v8::HeapGraphNode::kArray, wm_table->GetType());
553 CHECK_GT(wm_table->GetChildrenCount(), 0);
555 for (int i = 0, count = wm_table->GetChildrenCount(); i < count; ++i) {
556 const v8::HeapGraphEdge* prop = wm_table->GetChild(i);
557 if (prop->GetType() != v8::HeapGraphEdge::kWeak) continue;
558 const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
559 if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
563 CHECK_EQ(2, weak_entries);
564 const v8::HeapGraphNode* wm_s =
565 GetProperty(wm, v8::HeapGraphEdge::kProperty, "str");
566 CHECK_NE(NULL, wm_s);
567 CHECK_EQ(static_cast<int>(s->GetId()), static_cast<int>(wm_s->GetId()));
571 TEST(HeapSnapshotCollection) {
573 v8::HandleScope scope(env->GetIsolate());
574 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
577 "k = {}; v = {}; s = 'str';\n"
578 "set = new Set(); set.add(k); set.add(v); set[s] = s;\n"
579 "map = new Map(); map.set(k, v); map[s] = s;\n");
580 const v8::HeapSnapshot* snapshot =
581 heap_profiler->TakeHeapSnapshot(v8_str("Collections"));
582 CHECK(ValidateSnapshot(snapshot));
583 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
584 const v8::HeapGraphNode* k =
585 GetProperty(global, v8::HeapGraphEdge::kProperty, "k");
587 const v8::HeapGraphNode* v =
588 GetProperty(global, v8::HeapGraphEdge::kProperty, "v");
590 const v8::HeapGraphNode* s =
591 GetProperty(global, v8::HeapGraphEdge::kProperty, "s");
594 const v8::HeapGraphNode* set =
595 GetProperty(global, v8::HeapGraphEdge::kProperty, "set");
597 CHECK_EQ(v8::HeapGraphNode::kObject, set->GetType());
598 CHECK_EQ(v8_str("Set"), set->GetName());
600 const v8::HeapGraphNode* set_table =
601 GetProperty(set, v8::HeapGraphEdge::kInternal, "table");
602 CHECK_EQ(v8::HeapGraphNode::kArray, set_table->GetType());
603 CHECK_GT(set_table->GetChildrenCount(), 0);
605 for (int i = 0, count = set_table->GetChildrenCount(); i < count; ++i) {
606 const v8::HeapGraphEdge* prop = set_table->GetChild(i);
607 const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
608 if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
612 CHECK_EQ(2, entries);
613 const v8::HeapGraphNode* set_s =
614 GetProperty(set, v8::HeapGraphEdge::kProperty, "str");
615 CHECK_NE(NULL, set_s);
616 CHECK_EQ(static_cast<int>(s->GetId()), static_cast<int>(set_s->GetId()));
618 const v8::HeapGraphNode* map =
619 GetProperty(global, v8::HeapGraphEdge::kProperty, "map");
621 CHECK_EQ(v8::HeapGraphNode::kObject, map->GetType());
622 CHECK_EQ(v8_str("Map"), map->GetName());
624 const v8::HeapGraphNode* map_table =
625 GetProperty(map, v8::HeapGraphEdge::kInternal, "table");
626 CHECK_EQ(v8::HeapGraphNode::kArray, map_table->GetType());
627 CHECK_GT(map_table->GetChildrenCount(), 0);
629 for (int i = 0, count = map_table->GetChildrenCount(); i < count; ++i) {
630 const v8::HeapGraphEdge* prop = map_table->GetChild(i);
631 const v8::SnapshotObjectId to_node_id = prop->GetToNode()->GetId();
632 if (to_node_id == k->GetId() || to_node_id == v->GetId()) {
636 CHECK_EQ(2, entries);
637 const v8::HeapGraphNode* map_s =
638 GetProperty(map, v8::HeapGraphEdge::kProperty, "str");
639 CHECK_NE(NULL, map_s);
640 CHECK_EQ(static_cast<int>(s->GetId()), static_cast<int>(map_s->GetId()));
644 TEST(HeapSnapshotInternalReferences) {
645 v8::Isolate* isolate = CcTest::isolate();
646 v8::HandleScope scope(isolate);
647 v8::Local<v8::ObjectTemplate> global_template =
648 v8::ObjectTemplate::New(isolate);
649 global_template->SetInternalFieldCount(2);
650 LocalContext env(NULL, global_template);
651 v8::Handle<v8::Object> global_proxy = env->Global();
652 v8::Handle<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>();
653 CHECK_EQ(2, global->InternalFieldCount());
654 v8::Local<v8::Object> obj = v8::Object::New(isolate);
655 global->SetInternalField(0, v8_num(17));
656 global->SetInternalField(1, obj);
657 v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
658 const v8::HeapSnapshot* snapshot =
659 heap_profiler->TakeHeapSnapshot(v8_str("internals"));
660 CHECK(ValidateSnapshot(snapshot));
661 const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot);
662 // The first reference will not present, because it's a Smi.
663 CHECK_EQ(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "0"));
664 // The second reference is to an object.
665 CHECK_NE(NULL, GetProperty(global_node, v8::HeapGraphEdge::kInternal, "1"));
669 // Trying to introduce a check helper for uint32_t causes many
670 // overloading ambiguities, so it seems easier just to cast
671 // them to a signed type.
672 #define CHECK_EQ_SNAPSHOT_OBJECT_ID(a, b) \
673 CHECK_EQ(static_cast<int32_t>(a), static_cast<int32_t>(b))
674 #define CHECK_NE_SNAPSHOT_OBJECT_ID(a, b) \
675 CHECK((a) != (b)) // NOLINT
677 TEST(HeapSnapshotAddressReuse) {
679 v8::HandleScope scope(env->GetIsolate());
680 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
685 "for (var i = 0; i < 10000; ++i)\n"
686 " a[i] = new A();\n");
687 const v8::HeapSnapshot* snapshot1 =
688 heap_profiler->TakeHeapSnapshot(v8_str("snapshot1"));
689 CHECK(ValidateSnapshot(snapshot1));
690 v8::SnapshotObjectId maxId1 = snapshot1->GetMaxSnapshotJSObjectId();
693 "for (var i = 0; i < 10000; ++i)\n"
694 " a[i] = new A();\n");
695 CcTest::heap()->CollectAllGarbage(i::Heap::kNoGCFlags);
697 const v8::HeapSnapshot* snapshot2 =
698 heap_profiler->TakeHeapSnapshot(v8_str("snapshot2"));
699 CHECK(ValidateSnapshot(snapshot2));
700 const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
702 const v8::HeapGraphNode* array_node =
703 GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
704 CHECK_NE(NULL, array_node);
706 for (int i = 0, count = array_node->GetChildrenCount(); i < count; ++i) {
707 const v8::HeapGraphEdge* prop = array_node->GetChild(i);
708 if (prop->GetType() != v8::HeapGraphEdge::kElement)
710 v8::SnapshotObjectId id = prop->GetToNode()->GetId();
714 CHECK_EQ(0, wrong_count);
718 TEST(HeapEntryIdsAndArrayShift) {
720 v8::HandleScope scope(env->GetIsolate());
721 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
724 "function AnObject() {\n"
725 " this.first = 'first';\n"
726 " this.second = 'second';\n"
728 "var a = new Array();\n"
729 "for (var i = 0; i < 10; ++i)\n"
730 " a.push(new AnObject());\n");
731 const v8::HeapSnapshot* snapshot1 =
732 heap_profiler->TakeHeapSnapshot(v8_str("s1"));
733 CHECK(ValidateSnapshot(snapshot1));
736 "for (var i = 0; i < 1; ++i)\n"
739 CcTest::heap()->CollectAllGarbage(i::Heap::kNoGCFlags);
741 const v8::HeapSnapshot* snapshot2 =
742 heap_profiler->TakeHeapSnapshot(v8_str("s2"));
743 CHECK(ValidateSnapshot(snapshot2));
745 const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1);
746 const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
747 CHECK_NE_SNAPSHOT_OBJECT_ID(0, global1->GetId());
748 CHECK_EQ_SNAPSHOT_OBJECT_ID(global1->GetId(), global2->GetId());
750 const v8::HeapGraphNode* a1 =
751 GetProperty(global1, v8::HeapGraphEdge::kProperty, "a");
753 const v8::HeapGraphNode* k1 =
754 GetProperty(a1, v8::HeapGraphEdge::kInternal, "elements");
756 const v8::HeapGraphNode* a2 =
757 GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
759 const v8::HeapGraphNode* k2 =
760 GetProperty(a2, v8::HeapGraphEdge::kInternal, "elements");
763 CHECK_EQ_SNAPSHOT_OBJECT_ID(a1->GetId(), a2->GetId());
764 CHECK_EQ_SNAPSHOT_OBJECT_ID(k1->GetId(), k2->GetId());
768 TEST(HeapEntryIdsAndGC) {
770 v8::HandleScope scope(env->GetIsolate());
771 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
775 "function B(x) { this.x = x; }\n"
777 "var b = new B(a);");
778 v8::Local<v8::String> s1_str = v8_str("s1");
779 v8::Local<v8::String> s2_str = v8_str("s2");
780 const v8::HeapSnapshot* snapshot1 =
781 heap_profiler->TakeHeapSnapshot(s1_str);
782 CHECK(ValidateSnapshot(snapshot1));
784 CcTest::heap()->CollectAllGarbage(i::Heap::kNoGCFlags);
786 const v8::HeapSnapshot* snapshot2 =
787 heap_profiler->TakeHeapSnapshot(s2_str);
788 CHECK(ValidateSnapshot(snapshot2));
790 CHECK_GT(snapshot1->GetMaxSnapshotJSObjectId(), 7000);
791 CHECK(snapshot1->GetMaxSnapshotJSObjectId() <=
792 snapshot2->GetMaxSnapshotJSObjectId());
794 const v8::HeapGraphNode* global1 = GetGlobalObject(snapshot1);
795 const v8::HeapGraphNode* global2 = GetGlobalObject(snapshot2);
796 CHECK_NE_SNAPSHOT_OBJECT_ID(0, global1->GetId());
797 CHECK_EQ_SNAPSHOT_OBJECT_ID(global1->GetId(), global2->GetId());
798 const v8::HeapGraphNode* A1 =
799 GetProperty(global1, v8::HeapGraphEdge::kProperty, "A");
801 const v8::HeapGraphNode* A2 =
802 GetProperty(global2, v8::HeapGraphEdge::kProperty, "A");
804 CHECK_NE_SNAPSHOT_OBJECT_ID(0, A1->GetId());
805 CHECK_EQ_SNAPSHOT_OBJECT_ID(A1->GetId(), A2->GetId());
806 const v8::HeapGraphNode* B1 =
807 GetProperty(global1, v8::HeapGraphEdge::kProperty, "B");
809 const v8::HeapGraphNode* B2 =
810 GetProperty(global2, v8::HeapGraphEdge::kProperty, "B");
812 CHECK_NE_SNAPSHOT_OBJECT_ID(0, B1->GetId());
813 CHECK_EQ_SNAPSHOT_OBJECT_ID(B1->GetId(), B2->GetId());
814 const v8::HeapGraphNode* a1 =
815 GetProperty(global1, v8::HeapGraphEdge::kProperty, "a");
817 const v8::HeapGraphNode* a2 =
818 GetProperty(global2, v8::HeapGraphEdge::kProperty, "a");
820 CHECK_NE_SNAPSHOT_OBJECT_ID(0, a1->GetId());
821 CHECK_EQ_SNAPSHOT_OBJECT_ID(a1->GetId(), a2->GetId());
822 const v8::HeapGraphNode* b1 =
823 GetProperty(global1, v8::HeapGraphEdge::kProperty, "b");
825 const v8::HeapGraphNode* b2 =
826 GetProperty(global2, v8::HeapGraphEdge::kProperty, "b");
828 CHECK_NE_SNAPSHOT_OBJECT_ID(0, b1->GetId());
829 CHECK_EQ_SNAPSHOT_OBJECT_ID(b1->GetId(), b2->GetId());
833 TEST(HeapSnapshotRootPreservedAfterSorting) {
835 v8::HandleScope scope(env->GetIsolate());
836 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
837 const v8::HeapSnapshot* snapshot =
838 heap_profiler->TakeHeapSnapshot(v8_str("s"));
839 CHECK(ValidateSnapshot(snapshot));
840 const v8::HeapGraphNode* root1 = snapshot->GetRoot();
841 const_cast<i::HeapSnapshot*>(reinterpret_cast<const i::HeapSnapshot*>(
842 snapshot))->GetSortedEntriesList();
843 const v8::HeapGraphNode* root2 = snapshot->GetRoot();
844 CHECK_EQ(root1, root2);
850 class TestJSONStream : public v8::OutputStream {
852 TestJSONStream() : eos_signaled_(0), abort_countdown_(-1) {}
853 explicit TestJSONStream(int abort_countdown)
854 : eos_signaled_(0), abort_countdown_(abort_countdown) {}
855 virtual ~TestJSONStream() {}
856 virtual void EndOfStream() { ++eos_signaled_; }
857 virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) {
858 if (abort_countdown_ > 0) --abort_countdown_;
859 if (abort_countdown_ == 0) return kAbort;
860 CHECK_GT(chars_written, 0);
861 i::Vector<char> chunk = buffer_.AddBlock(chars_written, '\0');
862 i::MemCopy(chunk.start(), buffer, chars_written);
865 virtual WriteResult WriteUint32Chunk(uint32_t* buffer, int chars_written) {
869 void WriteTo(i::Vector<char> dest) { buffer_.WriteTo(dest); }
870 int eos_signaled() { return eos_signaled_; }
871 int size() { return buffer_.size(); }
874 i::Collector<char> buffer_;
876 int abort_countdown_;
879 class OneByteResource : public v8::String::ExternalOneByteStringResource {
881 explicit OneByteResource(i::Vector<char> string) : data_(string.start()) {
882 length_ = string.length();
884 virtual const char* data() const { return data_; }
885 virtual size_t length() const { return length_; }
893 TEST(HeapSnapshotJSONSerialization) {
895 v8::HandleScope scope(env->GetIsolate());
896 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
898 #define STRING_LITERAL_FOR_TEST \
899 "\"String \\n\\r\\u0008\\u0081\\u0101\\u0801\\u8001\""
901 "function A(s) { this.s = s; }\n"
902 "function B(x) { this.x = x; }\n"
903 "var a = new A(" STRING_LITERAL_FOR_TEST ");\n"
904 "var b = new B(a);");
905 const v8::HeapSnapshot* snapshot =
906 heap_profiler->TakeHeapSnapshot(v8_str("json"));
907 CHECK(ValidateSnapshot(snapshot));
909 TestJSONStream stream;
910 snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON);
911 CHECK_GT(stream.size(), 0);
912 CHECK_EQ(1, stream.eos_signaled());
913 i::ScopedVector<char> json(stream.size());
914 stream.WriteTo(json);
916 // Verify that snapshot string is valid JSON.
917 OneByteResource* json_res = new OneByteResource(json);
918 v8::Local<v8::String> json_string =
919 v8::String::NewExternal(env->GetIsolate(), json_res);
920 env->Global()->Set(v8_str("json_snapshot"), json_string);
921 v8::Local<v8::Value> snapshot_parse_result = CompileRun(
922 "var parsed = JSON.parse(json_snapshot); true;");
923 CHECK(!snapshot_parse_result.IsEmpty());
925 // Verify that snapshot object has required fields.
926 v8::Local<v8::Object> parsed_snapshot =
927 env->Global()->Get(v8_str("parsed"))->ToObject();
928 CHECK(parsed_snapshot->Has(v8_str("snapshot")));
929 CHECK(parsed_snapshot->Has(v8_str("nodes")));
930 CHECK(parsed_snapshot->Has(v8_str("edges")));
931 CHECK(parsed_snapshot->Has(v8_str("strings")));
933 // Get node and edge "member" offsets.
934 v8::Local<v8::Value> meta_analysis_result = CompileRun(
935 "var meta = parsed.snapshot.meta;\n"
936 "var edge_count_offset = meta.node_fields.indexOf('edge_count');\n"
937 "var node_fields_count = meta.node_fields.length;\n"
938 "var edge_fields_count = meta.edge_fields.length;\n"
939 "var edge_type_offset = meta.edge_fields.indexOf('type');\n"
940 "var edge_name_offset = meta.edge_fields.indexOf('name_or_index');\n"
941 "var edge_to_node_offset = meta.edge_fields.indexOf('to_node');\n"
942 "var property_type ="
943 " meta.edge_types[edge_type_offset].indexOf('property');\n"
944 "var shortcut_type ="
945 " meta.edge_types[edge_type_offset].indexOf('shortcut');\n"
946 "var node_count = parsed.nodes.length / node_fields_count;\n"
947 "var first_edge_indexes = parsed.first_edge_indexes = [];\n"
948 "for (var i = 0, first_edge_index = 0; i < node_count; ++i) {\n"
949 " first_edge_indexes[i] = first_edge_index;\n"
950 " first_edge_index += edge_fields_count *\n"
951 " parsed.nodes[i * node_fields_count + edge_count_offset];\n"
953 "first_edge_indexes[node_count] = first_edge_index;\n");
954 CHECK(!meta_analysis_result.IsEmpty());
956 // A helper function for processing encoded nodes.
958 "function GetChildPosByProperty(pos, prop_name, prop_type) {\n"
959 " var nodes = parsed.nodes;\n"
960 " var edges = parsed.edges;\n"
961 " var strings = parsed.strings;\n"
962 " var node_ordinal = pos / node_fields_count;\n"
963 " for (var i = parsed.first_edge_indexes[node_ordinal],\n"
964 " count = parsed.first_edge_indexes[node_ordinal + 1];\n"
965 " i < count; i += edge_fields_count) {\n"
966 " if (edges[i + edge_type_offset] === prop_type\n"
967 " && strings[edges[i + edge_name_offset]] === prop_name)\n"
968 " return edges[i + edge_to_node_offset];\n"
972 // Get the string index using the path: <root> -> <global>.b.x.s
973 v8::Local<v8::Value> string_obj_pos_val = CompileRun(
974 "GetChildPosByProperty(\n"
975 " GetChildPosByProperty(\n"
976 " GetChildPosByProperty("
977 " parsed.edges[edge_fields_count + edge_to_node_offset],"
978 " \"b\", property_type),\n"
979 " \"x\", property_type),"
980 " \"s\", property_type)");
981 CHECK(!string_obj_pos_val.IsEmpty());
983 static_cast<int>(string_obj_pos_val->ToNumber()->Value());
984 v8::Local<v8::Object> nodes_array =
985 parsed_snapshot->Get(v8_str("nodes"))->ToObject();
986 int string_index = static_cast<int>(
987 nodes_array->Get(string_obj_pos + 1)->ToNumber()->Value());
988 CHECK_GT(string_index, 0);
989 v8::Local<v8::Object> strings_array =
990 parsed_snapshot->Get(v8_str("strings"))->ToObject();
991 v8::Local<v8::String> string = strings_array->Get(string_index)->ToString();
992 v8::Local<v8::String> ref_string =
993 CompileRun(STRING_LITERAL_FOR_TEST)->ToString();
994 #undef STRING_LITERAL_FOR_TEST
995 CHECK_EQ(*v8::String::Utf8Value(ref_string),
996 *v8::String::Utf8Value(string));
1000 TEST(HeapSnapshotJSONSerializationAborting) {
1002 v8::HandleScope scope(env->GetIsolate());
1003 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1004 const v8::HeapSnapshot* snapshot =
1005 heap_profiler->TakeHeapSnapshot(v8_str("abort"));
1006 CHECK(ValidateSnapshot(snapshot));
1007 TestJSONStream stream(5);
1008 snapshot->Serialize(&stream, v8::HeapSnapshot::kJSON);
1009 CHECK_GT(stream.size(), 0);
1010 CHECK_EQ(0, stream.eos_signaled());
1015 class TestStatsStream : public v8::OutputStream {
1019 updates_written_(0),
1022 intervals_count_(0),
1023 first_interval_index_(-1) { }
1024 TestStatsStream(const TestStatsStream& stream)
1025 : v8::OutputStream(stream),
1026 eos_signaled_(stream.eos_signaled_),
1027 updates_written_(stream.updates_written_),
1028 entries_count_(stream.entries_count_),
1029 entries_size_(stream.entries_size_),
1030 intervals_count_(stream.intervals_count_),
1031 first_interval_index_(stream.first_interval_index_) { }
1032 virtual ~TestStatsStream() {}
1033 virtual void EndOfStream() { ++eos_signaled_; }
1034 virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) {
1038 virtual WriteResult WriteHeapStatsChunk(v8::HeapStatsUpdate* buffer,
1039 int updates_written) {
1041 DCHECK(updates_written);
1042 updates_written_ += updates_written;
1044 if (first_interval_index_ == -1 && updates_written != 0)
1045 first_interval_index_ = buffer[0].index;
1046 for (int i = 0; i < updates_written; ++i) {
1047 entries_count_ += buffer[i].count;
1048 entries_size_ += buffer[i].size;
1053 int eos_signaled() { return eos_signaled_; }
1054 int updates_written() { return updates_written_; }
1055 uint32_t entries_count() const { return entries_count_; }
1056 uint32_t entries_size() const { return entries_size_; }
1057 int intervals_count() const { return intervals_count_; }
1058 int first_interval_index() const { return first_interval_index_; }
1062 int updates_written_;
1063 uint32_t entries_count_;
1064 uint32_t entries_size_;
1065 int intervals_count_;
1066 int first_interval_index_;
1071 static TestStatsStream GetHeapStatsUpdate(
1072 v8::HeapProfiler* heap_profiler,
1073 v8::SnapshotObjectId* object_id = NULL) {
1074 TestStatsStream stream;
1075 v8::SnapshotObjectId last_seen_id = heap_profiler->GetHeapStats(&stream);
1077 *object_id = last_seen_id;
1078 CHECK_EQ(1, stream.eos_signaled());
1083 TEST(HeapSnapshotObjectsStats) {
1085 v8::HandleScope scope(env->GetIsolate());
1086 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1088 heap_profiler->StartTrackingHeapObjects();
1089 // We have to call GC 6 times. In other case the garbage will be
1090 // the reason of flakiness.
1091 for (int i = 0; i < 6; ++i) {
1092 CcTest::heap()->CollectAllGarbage(i::Heap::kNoGCFlags);
1095 v8::SnapshotObjectId initial_id;
1097 // Single chunk of data expected in update. Initial data.
1098 TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler,
1100 CHECK_EQ(1, stats_update.intervals_count());
1101 CHECK_EQ(1, stats_update.updates_written());
1102 CHECK_LT(0, stats_update.entries_size());
1103 CHECK_EQ(0, stats_update.first_interval_index());
1106 // No data expected in update because nothing has happened.
1107 v8::SnapshotObjectId same_id;
1108 CHECK_EQ(0, GetHeapStatsUpdate(heap_profiler, &same_id).updates_written());
1109 CHECK_EQ_SNAPSHOT_OBJECT_ID(initial_id, same_id);
1112 v8::SnapshotObjectId additional_string_id;
1113 v8::HandleScope inner_scope_1(env->GetIsolate());
1116 // Single chunk of data with one new entry expected in update.
1117 TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler,
1118 &additional_string_id);
1119 CHECK_LT(same_id, additional_string_id);
1120 CHECK_EQ(1, stats_update.intervals_count());
1121 CHECK_EQ(1, stats_update.updates_written());
1122 CHECK_LT(0, stats_update.entries_size());
1123 CHECK_EQ(1, stats_update.entries_count());
1124 CHECK_EQ(2, stats_update.first_interval_index());
1127 // No data expected in update because nothing happened.
1128 v8::SnapshotObjectId last_id;
1129 CHECK_EQ(0, GetHeapStatsUpdate(heap_profiler, &last_id).updates_written());
1130 CHECK_EQ_SNAPSHOT_OBJECT_ID(additional_string_id, last_id);
1133 v8::HandleScope inner_scope_2(env->GetIsolate());
1136 uint32_t entries_size;
1138 v8::HandleScope inner_scope_3(env->GetIsolate());
1143 // Single chunk of data with three new entries expected in update.
1144 TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
1145 CHECK_EQ(1, stats_update.intervals_count());
1146 CHECK_EQ(1, stats_update.updates_written());
1147 CHECK_LT(0, entries_size = stats_update.entries_size());
1148 CHECK_EQ(3, stats_update.entries_count());
1149 CHECK_EQ(4, stats_update.first_interval_index());
1154 // Single chunk of data with two left entries expected in update.
1155 TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
1156 CHECK_EQ(1, stats_update.intervals_count());
1157 CHECK_EQ(1, stats_update.updates_written());
1158 CHECK_GT(entries_size, stats_update.entries_size());
1159 CHECK_EQ(1, stats_update.entries_count());
1160 // Two strings from forth interval were released.
1161 CHECK_EQ(4, stats_update.first_interval_index());
1166 // Single chunk of data with 0 left entries expected in update.
1167 TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
1168 CHECK_EQ(1, stats_update.intervals_count());
1169 CHECK_EQ(1, stats_update.updates_written());
1170 CHECK_EQ(0, stats_update.entries_size());
1171 CHECK_EQ(0, stats_update.entries_count());
1172 // The last string from forth interval was released.
1173 CHECK_EQ(4, stats_update.first_interval_index());
1177 // Single chunk of data with 0 left entries expected in update.
1178 TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
1179 CHECK_EQ(1, stats_update.intervals_count());
1180 CHECK_EQ(1, stats_update.updates_written());
1181 CHECK_EQ(0, stats_update.entries_size());
1182 CHECK_EQ(0, stats_update.entries_count());
1183 // The only string from the second interval was released.
1184 CHECK_EQ(2, stats_update.first_interval_index());
1187 v8::Local<v8::Array> array = v8::Array::New(env->GetIsolate());
1188 CHECK_EQ(0, array->Length());
1189 // Force array's buffer allocation.
1190 array->Set(2, v8_num(7));
1192 uint32_t entries_size;
1194 // Single chunk of data with 2 entries expected in update.
1195 TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
1196 CHECK_EQ(1, stats_update.intervals_count());
1197 CHECK_EQ(1, stats_update.updates_written());
1198 CHECK_LT(0, entries_size = stats_update.entries_size());
1199 // They are the array and its buffer.
1200 CHECK_EQ(2, stats_update.entries_count());
1201 CHECK_EQ(8, stats_update.first_interval_index());
1204 for (int i = 0; i < 100; ++i)
1205 array->Set(i, v8_num(i));
1208 // Single chunk of data with 1 entry expected in update.
1209 TestStatsStream stats_update = GetHeapStatsUpdate(heap_profiler);
1210 CHECK_EQ(1, stats_update.intervals_count());
1211 // The first interval was changed because old buffer was collected.
1212 // The second interval was changed because new buffer was allocated.
1213 CHECK_EQ(2, stats_update.updates_written());
1214 CHECK_LT(entries_size, stats_update.entries_size());
1215 CHECK_EQ(2, stats_update.entries_count());
1216 CHECK_EQ(8, stats_update.first_interval_index());
1219 heap_profiler->StopTrackingHeapObjects();
1223 TEST(HeapObjectIds) {
1225 v8::Isolate* isolate = env->GetIsolate();
1226 v8::HandleScope scope(isolate);
1227 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1229 const int kLength = 10;
1230 v8::Handle<v8::Object> objects[kLength];
1231 v8::SnapshotObjectId ids[kLength];
1233 heap_profiler->StartTrackingHeapObjects(false);
1235 for (int i = 0; i < kLength; i++) {
1236 objects[i] = v8::Object::New(isolate);
1238 GetHeapStatsUpdate(heap_profiler);
1240 for (int i = 0; i < kLength; i++) {
1241 v8::SnapshotObjectId id = heap_profiler->GetObjectId(objects[i]);
1242 CHECK_NE(v8::HeapProfiler::kUnknownObjectId, static_cast<int>(id));
1246 heap_profiler->StopTrackingHeapObjects();
1247 CcTest::heap()->CollectAllAvailableGarbage();
1249 for (int i = 0; i < kLength; i++) {
1250 v8::SnapshotObjectId id = heap_profiler->GetObjectId(objects[i]);
1251 CHECK_EQ(static_cast<int>(ids[i]), static_cast<int>(id));
1252 v8::Handle<v8::Value> obj = heap_profiler->FindObjectById(ids[i]);
1253 CHECK_EQ(objects[i], obj);
1256 heap_profiler->ClearObjectIds();
1257 for (int i = 0; i < kLength; i++) {
1258 v8::SnapshotObjectId id = heap_profiler->GetObjectId(objects[i]);
1259 CHECK_EQ(v8::HeapProfiler::kUnknownObjectId, static_cast<int>(id));
1260 v8::Handle<v8::Value> obj = heap_profiler->FindObjectById(ids[i]);
1261 CHECK(obj.IsEmpty());
1266 static void CheckChildrenIds(const v8::HeapSnapshot* snapshot,
1267 const v8::HeapGraphNode* node,
1268 int level, int max_level) {
1269 if (level > max_level) return;
1270 CHECK_EQ(node, snapshot->GetNodeById(node->GetId()));
1271 for (int i = 0, count = node->GetChildrenCount(); i < count; ++i) {
1272 const v8::HeapGraphEdge* prop = node->GetChild(i);
1273 const v8::HeapGraphNode* child =
1274 snapshot->GetNodeById(prop->GetToNode()->GetId());
1275 CHECK_EQ_SNAPSHOT_OBJECT_ID(prop->GetToNode()->GetId(), child->GetId());
1276 CHECK_EQ(prop->GetToNode(), child);
1277 CheckChildrenIds(snapshot, child, level + 1, max_level);
1282 TEST(HeapSnapshotGetNodeById) {
1284 v8::HandleScope scope(env->GetIsolate());
1285 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1287 const v8::HeapSnapshot* snapshot =
1288 heap_profiler->TakeHeapSnapshot(v8_str("id"));
1289 CHECK(ValidateSnapshot(snapshot));
1290 const v8::HeapGraphNode* root = snapshot->GetRoot();
1291 CheckChildrenIds(snapshot, root, 0, 3);
1292 // Check a big id, which should not exist yet.
1293 CHECK_EQ(NULL, snapshot->GetNodeById(0x1000000UL));
1297 TEST(HeapSnapshotGetSnapshotObjectId) {
1299 v8::HandleScope scope(env->GetIsolate());
1300 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1301 CompileRun("globalObject = {};\n");
1302 const v8::HeapSnapshot* snapshot =
1303 heap_profiler->TakeHeapSnapshot(v8_str("get_snapshot_object_id"));
1304 CHECK(ValidateSnapshot(snapshot));
1305 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
1306 const v8::HeapGraphNode* global_object =
1307 GetProperty(global, v8::HeapGraphEdge::kProperty, "globalObject");
1308 CHECK(global_object);
1310 v8::Local<v8::Value> globalObjectHandle = env->Global()->Get(
1311 v8::String::NewFromUtf8(env->GetIsolate(), "globalObject"));
1312 CHECK(!globalObjectHandle.IsEmpty());
1313 CHECK(globalObjectHandle->IsObject());
1315 v8::SnapshotObjectId id = heap_profiler->GetObjectId(globalObjectHandle);
1316 CHECK_NE(static_cast<int>(v8::HeapProfiler::kUnknownObjectId),
1318 CHECK_EQ(static_cast<int>(id), global_object->GetId());
1322 TEST(HeapSnapshotUnknownSnapshotObjectId) {
1324 v8::HandleScope scope(env->GetIsolate());
1325 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1326 CompileRun("globalObject = {};\n");
1327 const v8::HeapSnapshot* snapshot =
1328 heap_profiler->TakeHeapSnapshot(v8_str("unknown_object_id"));
1329 CHECK(ValidateSnapshot(snapshot));
1330 const v8::HeapGraphNode* node =
1331 snapshot->GetNodeById(v8::HeapProfiler::kUnknownObjectId);
1332 CHECK_EQ(NULL, node);
1338 class TestActivityControl : public v8::ActivityControl {
1340 explicit TestActivityControl(int abort_count)
1341 : done_(0), total_(0), abort_count_(abort_count) {}
1342 ControlOption ReportProgressValue(int done, int total) {
1345 return --abort_count_ != 0 ? kContinue : kAbort;
1347 int done() { return done_; }
1348 int total() { return total_; }
1358 TEST(TakeHeapSnapshotAborting) {
1360 v8::HandleScope scope(env->GetIsolate());
1362 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1363 const int snapshots_count = heap_profiler->GetSnapshotCount();
1364 TestActivityControl aborting_control(1);
1365 const v8::HeapSnapshot* no_snapshot =
1366 heap_profiler->TakeHeapSnapshot(v8_str("abort"),
1368 CHECK_EQ(NULL, no_snapshot);
1369 CHECK_EQ(snapshots_count, heap_profiler->GetSnapshotCount());
1370 CHECK_GT(aborting_control.total(), aborting_control.done());
1372 TestActivityControl control(-1); // Don't abort.
1373 const v8::HeapSnapshot* snapshot =
1374 heap_profiler->TakeHeapSnapshot(v8_str("full"),
1376 CHECK(ValidateSnapshot(snapshot));
1378 CHECK_NE(NULL, snapshot);
1379 CHECK_EQ(snapshots_count + 1, heap_profiler->GetSnapshotCount());
1380 CHECK_EQ(control.total(), control.done());
1381 CHECK_GT(control.total(), 0);
1387 class TestRetainedObjectInfo : public v8::RetainedObjectInfo {
1389 TestRetainedObjectInfo(int hash,
1390 const char* group_label,
1392 intptr_t element_count = -1,
1396 group_label_(group_label),
1398 element_count_(element_count),
1400 instances.Add(this);
1402 virtual ~TestRetainedObjectInfo() {}
1403 virtual void Dispose() {
1407 virtual bool IsEquivalent(RetainedObjectInfo* other) {
1408 return GetHash() == other->GetHash();
1410 virtual intptr_t GetHash() { return hash_; }
1411 virtual const char* GetGroupLabel() { return group_label_; }
1412 virtual const char* GetLabel() { return label_; }
1413 virtual intptr_t GetElementCount() { return element_count_; }
1414 virtual intptr_t GetSizeInBytes() { return size_; }
1415 bool disposed() { return disposed_; }
1417 static v8::RetainedObjectInfo* WrapperInfoCallback(
1418 uint16_t class_id, v8::Handle<v8::Value> wrapper) {
1419 if (class_id == 1) {
1420 if (wrapper->IsString()) {
1421 v8::String::Utf8Value utf8(wrapper);
1422 if (strcmp(*utf8, "AAA") == 0)
1423 return new TestRetainedObjectInfo(1, "aaa-group", "aaa", 100);
1424 else if (strcmp(*utf8, "BBB") == 0)
1425 return new TestRetainedObjectInfo(1, "aaa-group", "aaa", 100);
1427 } else if (class_id == 2) {
1428 if (wrapper->IsString()) {
1429 v8::String::Utf8Value utf8(wrapper);
1430 if (strcmp(*utf8, "CCC") == 0)
1431 return new TestRetainedObjectInfo(2, "ccc-group", "ccc");
1438 static i::List<TestRetainedObjectInfo*> instances;
1443 const char* group_label_;
1445 intptr_t element_count_;
1450 i::List<TestRetainedObjectInfo*> TestRetainedObjectInfo::instances;
1454 static const v8::HeapGraphNode* GetNode(const v8::HeapGraphNode* parent,
1455 v8::HeapGraphNode::Type type,
1457 for (int i = 0, count = parent->GetChildrenCount(); i < count; ++i) {
1458 const v8::HeapGraphNode* node = parent->GetChild(i)->GetToNode();
1459 if (node->GetType() == type && strcmp(name,
1460 const_cast<i::HeapEntry*>(
1461 reinterpret_cast<const i::HeapEntry*>(node))->name()) == 0) {
1469 TEST(HeapSnapshotRetainedObjectInfo) {
1471 v8::Isolate* isolate = env->GetIsolate();
1472 v8::HandleScope scope(isolate);
1473 v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
1475 heap_profiler->SetWrapperClassInfoProvider(
1476 1, TestRetainedObjectInfo::WrapperInfoCallback);
1477 heap_profiler->SetWrapperClassInfoProvider(
1478 2, TestRetainedObjectInfo::WrapperInfoCallback);
1479 v8::Persistent<v8::String> p_AAA(isolate, v8_str("AAA"));
1480 p_AAA.SetWrapperClassId(1);
1481 v8::Persistent<v8::String> p_BBB(isolate, v8_str("BBB"));
1482 p_BBB.SetWrapperClassId(1);
1483 v8::Persistent<v8::String> p_CCC(isolate, v8_str("CCC"));
1484 p_CCC.SetWrapperClassId(2);
1485 CHECK_EQ(0, TestRetainedObjectInfo::instances.length());
1486 const v8::HeapSnapshot* snapshot =
1487 heap_profiler->TakeHeapSnapshot(v8_str("retained"));
1488 CHECK(ValidateSnapshot(snapshot));
1490 CHECK_EQ(3, TestRetainedObjectInfo::instances.length());
1491 for (int i = 0; i < TestRetainedObjectInfo::instances.length(); ++i) {
1492 CHECK(TestRetainedObjectInfo::instances[i]->disposed());
1493 delete TestRetainedObjectInfo::instances[i];
1496 const v8::HeapGraphNode* native_group_aaa = GetNode(
1497 snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "aaa-group");
1498 CHECK_NE(NULL, native_group_aaa);
1499 CHECK_EQ(1, native_group_aaa->GetChildrenCount());
1500 const v8::HeapGraphNode* aaa = GetNode(
1501 native_group_aaa, v8::HeapGraphNode::kNative, "aaa / 100 entries");
1502 CHECK_NE(NULL, aaa);
1503 CHECK_EQ(2, aaa->GetChildrenCount());
1505 const v8::HeapGraphNode* native_group_ccc = GetNode(
1506 snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "ccc-group");
1507 const v8::HeapGraphNode* ccc = GetNode(
1508 native_group_ccc, v8::HeapGraphNode::kNative, "ccc");
1509 CHECK_NE(NULL, ccc);
1511 const v8::HeapGraphNode* n_AAA = GetNode(
1512 aaa, v8::HeapGraphNode::kString, "AAA");
1513 CHECK_NE(NULL, n_AAA);
1514 const v8::HeapGraphNode* n_BBB = GetNode(
1515 aaa, v8::HeapGraphNode::kString, "BBB");
1516 CHECK_NE(NULL, n_BBB);
1517 CHECK_EQ(1, ccc->GetChildrenCount());
1518 const v8::HeapGraphNode* n_CCC = GetNode(
1519 ccc, v8::HeapGraphNode::kString, "CCC");
1520 CHECK_NE(NULL, n_CCC);
1522 CHECK_EQ(aaa, GetProperty(n_AAA, v8::HeapGraphEdge::kInternal, "native"));
1523 CHECK_EQ(aaa, GetProperty(n_BBB, v8::HeapGraphEdge::kInternal, "native"));
1524 CHECK_EQ(ccc, GetProperty(n_CCC, v8::HeapGraphEdge::kInternal, "native"));
1528 class GraphWithImplicitRefs {
1530 static const int kObjectsCount = 4;
1531 explicit GraphWithImplicitRefs(LocalContext* env) {
1532 CHECK_EQ(NULL, instance_);
1534 isolate_ = (*env)->GetIsolate();
1535 for (int i = 0; i < kObjectsCount; i++) {
1536 objects_[i].Reset(isolate_, v8::Object::New(isolate_));
1538 (*env)->Global()->Set(v8_str("root_object"),
1539 v8::Local<v8::Value>::New(isolate_, objects_[0]));
1541 ~GraphWithImplicitRefs() {
1545 static void gcPrologue(v8::GCType type, v8::GCCallbackFlags flags) {
1546 instance_->AddImplicitReferences();
1550 void AddImplicitReferences() {
1552 isolate_->SetObjectGroupId(objects_[0],
1554 isolate_->SetReferenceFromGroup(
1555 v8::UniqueId(1), objects_[1]);
1556 // Adding two more references: 1 -> 2, 1 -> 3
1557 isolate_->SetReference(objects_[1].As<v8::Object>(),
1559 isolate_->SetReference(objects_[1].As<v8::Object>(),
1563 v8::Persistent<v8::Value> objects_[kObjectsCount];
1564 static GraphWithImplicitRefs* instance_;
1565 v8::Isolate* isolate_;
1568 GraphWithImplicitRefs* GraphWithImplicitRefs::instance_ = NULL;
1571 TEST(HeapSnapshotImplicitReferences) {
1573 v8::HandleScope scope(env->GetIsolate());
1574 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1576 GraphWithImplicitRefs graph(&env);
1577 v8::V8::AddGCPrologueCallback(&GraphWithImplicitRefs::gcPrologue);
1579 const v8::HeapSnapshot* snapshot =
1580 heap_profiler->TakeHeapSnapshot(v8_str("implicit_refs"));
1581 CHECK(ValidateSnapshot(snapshot));
1583 const v8::HeapGraphNode* global_object = GetGlobalObject(snapshot);
1584 const v8::HeapGraphNode* obj0 = GetProperty(
1585 global_object, v8::HeapGraphEdge::kProperty, "root_object");
1587 CHECK_EQ(v8::HeapGraphNode::kObject, obj0->GetType());
1588 const v8::HeapGraphNode* obj1 = GetProperty(
1589 obj0, v8::HeapGraphEdge::kInternal, "native");
1591 int implicit_targets_count = 0;
1592 for (int i = 0, count = obj1->GetChildrenCount(); i < count; ++i) {
1593 const v8::HeapGraphEdge* prop = obj1->GetChild(i);
1594 v8::String::Utf8Value prop_name(prop->GetName());
1595 if (prop->GetType() == v8::HeapGraphEdge::kInternal &&
1596 strcmp("native", *prop_name) == 0) {
1597 ++implicit_targets_count;
1600 CHECK_EQ(2, implicit_targets_count);
1601 v8::V8::RemoveGCPrologueCallback(&GraphWithImplicitRefs::gcPrologue);
1605 TEST(DeleteAllHeapSnapshots) {
1607 v8::HandleScope scope(env->GetIsolate());
1608 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1610 CHECK_EQ(0, heap_profiler->GetSnapshotCount());
1611 heap_profiler->DeleteAllHeapSnapshots();
1612 CHECK_EQ(0, heap_profiler->GetSnapshotCount());
1613 CHECK_NE(NULL, heap_profiler->TakeHeapSnapshot(v8_str("1")));
1614 CHECK_EQ(1, heap_profiler->GetSnapshotCount());
1615 heap_profiler->DeleteAllHeapSnapshots();
1616 CHECK_EQ(0, heap_profiler->GetSnapshotCount());
1617 CHECK_NE(NULL, heap_profiler->TakeHeapSnapshot(v8_str("1")));
1618 CHECK_NE(NULL, heap_profiler->TakeHeapSnapshot(v8_str("2")));
1619 CHECK_EQ(2, heap_profiler->GetSnapshotCount());
1620 heap_profiler->DeleteAllHeapSnapshots();
1621 CHECK_EQ(0, heap_profiler->GetSnapshotCount());
1625 static const v8::HeapSnapshot* FindHeapSnapshot(v8::HeapProfiler* profiler,
1627 int length = profiler->GetSnapshotCount();
1628 for (int i = 0; i < length; i++) {
1629 const v8::HeapSnapshot* snapshot = profiler->GetHeapSnapshot(i);
1630 if (snapshot->GetUid() == uid) {
1638 TEST(DeleteHeapSnapshot) {
1640 v8::HandleScope scope(env->GetIsolate());
1641 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1643 CHECK_EQ(0, heap_profiler->GetSnapshotCount());
1644 const v8::HeapSnapshot* s1 =
1645 heap_profiler->TakeHeapSnapshot(v8_str("1"));
1648 CHECK_EQ(1, heap_profiler->GetSnapshotCount());
1649 unsigned uid1 = s1->GetUid();
1650 CHECK_EQ(s1, FindHeapSnapshot(heap_profiler, uid1));
1651 const_cast<v8::HeapSnapshot*>(s1)->Delete();
1652 CHECK_EQ(0, heap_profiler->GetSnapshotCount());
1653 CHECK_EQ(NULL, FindHeapSnapshot(heap_profiler, uid1));
1655 const v8::HeapSnapshot* s2 =
1656 heap_profiler->TakeHeapSnapshot(v8_str("2"));
1658 CHECK_EQ(1, heap_profiler->GetSnapshotCount());
1659 unsigned uid2 = s2->GetUid();
1660 CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid2));
1661 CHECK_EQ(s2, FindHeapSnapshot(heap_profiler, uid2));
1662 const v8::HeapSnapshot* s3 =
1663 heap_profiler->TakeHeapSnapshot(v8_str("3"));
1665 CHECK_EQ(2, heap_profiler->GetSnapshotCount());
1666 unsigned uid3 = s3->GetUid();
1667 CHECK_NE(static_cast<int>(uid1), static_cast<int>(uid3));
1668 CHECK_EQ(s3, FindHeapSnapshot(heap_profiler, uid3));
1669 const_cast<v8::HeapSnapshot*>(s2)->Delete();
1670 CHECK_EQ(1, heap_profiler->GetSnapshotCount());
1671 CHECK_EQ(NULL, FindHeapSnapshot(heap_profiler, uid2));
1672 CHECK_EQ(s3, FindHeapSnapshot(heap_profiler, uid3));
1673 const_cast<v8::HeapSnapshot*>(s3)->Delete();
1674 CHECK_EQ(0, heap_profiler->GetSnapshotCount());
1675 CHECK_EQ(NULL, FindHeapSnapshot(heap_profiler, uid3));
1679 class NameResolver : public v8::HeapProfiler::ObjectNameResolver {
1681 virtual const char* GetName(v8::Handle<v8::Object> object) {
1682 return "Global object name";
1687 TEST(GlobalObjectName) {
1689 v8::HandleScope scope(env->GetIsolate());
1690 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1692 CompileRun("document = { URL:\"abcdefgh\" };");
1694 NameResolver name_resolver;
1695 const v8::HeapSnapshot* snapshot =
1696 heap_profiler->TakeHeapSnapshot(v8_str("document"),
1699 CHECK(ValidateSnapshot(snapshot));
1700 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
1701 CHECK_NE(NULL, global);
1702 CHECK_EQ("Object / Global object name" ,
1703 const_cast<i::HeapEntry*>(
1704 reinterpret_cast<const i::HeapEntry*>(global))->name());
1708 TEST(GlobalObjectFields) {
1710 v8::HandleScope scope(env->GetIsolate());
1711 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1712 CompileRun("obj = {};");
1713 const v8::HeapSnapshot* snapshot =
1714 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
1715 CHECK(ValidateSnapshot(snapshot));
1716 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
1717 const v8::HeapGraphNode* builtins =
1718 GetProperty(global, v8::HeapGraphEdge::kInternal, "builtins");
1719 CHECK_NE(NULL, builtins);
1720 const v8::HeapGraphNode* native_context =
1721 GetProperty(global, v8::HeapGraphEdge::kInternal, "native_context");
1722 CHECK_NE(NULL, native_context);
1723 const v8::HeapGraphNode* global_context =
1724 GetProperty(global, v8::HeapGraphEdge::kInternal, "global_context");
1725 CHECK_NE(NULL, global_context);
1726 const v8::HeapGraphNode* global_proxy =
1727 GetProperty(global, v8::HeapGraphEdge::kInternal, "global_proxy");
1728 CHECK_NE(NULL, global_proxy);
1732 TEST(NoHandleLeaks) {
1734 v8::HandleScope scope(env->GetIsolate());
1735 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1737 CompileRun("document = { URL:\"abcdefgh\" };");
1739 v8::Handle<v8::String> name(v8_str("leakz"));
1740 i::Isolate* isolate = CcTest::i_isolate();
1741 int count_before = i::HandleScope::NumberOfHandles(isolate);
1742 heap_profiler->TakeHeapSnapshot(name);
1743 int count_after = i::HandleScope::NumberOfHandles(isolate);
1744 CHECK_EQ(count_before, count_after);
1748 TEST(NodesIteration) {
1750 v8::HandleScope scope(env->GetIsolate());
1751 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1752 const v8::HeapSnapshot* snapshot =
1753 heap_profiler->TakeHeapSnapshot(v8_str("iteration"));
1754 CHECK(ValidateSnapshot(snapshot));
1755 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
1756 CHECK_NE(NULL, global);
1757 // Verify that we can find this object by iteration.
1758 const int nodes_count = snapshot->GetNodesCount();
1760 for (int i = 0; i < nodes_count; ++i) {
1761 if (snapshot->GetNode(i) == global)
1768 TEST(GetHeapValueForNode) {
1770 v8::HandleScope scope(env->GetIsolate());
1771 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1773 CompileRun("a = { s_prop: \'value\', n_prop: \'value2\' };");
1774 const v8::HeapSnapshot* snapshot =
1775 heap_profiler->TakeHeapSnapshot(v8_str("value"));
1776 CHECK(ValidateSnapshot(snapshot));
1777 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
1778 CHECK(heap_profiler->FindObjectById(global->GetId())->IsObject());
1779 v8::Local<v8::Object> js_global =
1780 env->Global()->GetPrototype().As<v8::Object>();
1781 CHECK(js_global == heap_profiler->FindObjectById(global->GetId()));
1782 const v8::HeapGraphNode* obj = GetProperty(
1783 global, v8::HeapGraphEdge::kProperty, "a");
1784 CHECK(heap_profiler->FindObjectById(obj->GetId())->IsObject());
1785 v8::Local<v8::Object> js_obj = js_global->Get(v8_str("a")).As<v8::Object>();
1786 CHECK(js_obj == heap_profiler->FindObjectById(obj->GetId()));
1787 const v8::HeapGraphNode* s_prop =
1788 GetProperty(obj, v8::HeapGraphEdge::kProperty, "s_prop");
1789 v8::Local<v8::String> js_s_prop =
1790 js_obj->Get(v8_str("s_prop")).As<v8::String>();
1791 CHECK(js_s_prop == heap_profiler->FindObjectById(s_prop->GetId()));
1792 const v8::HeapGraphNode* n_prop =
1793 GetProperty(obj, v8::HeapGraphEdge::kProperty, "n_prop");
1794 v8::Local<v8::String> js_n_prop =
1795 js_obj->Get(v8_str("n_prop")).As<v8::String>();
1796 CHECK(js_n_prop == heap_profiler->FindObjectById(n_prop->GetId()));
1800 TEST(GetHeapValueForDeletedObject) {
1802 v8::HandleScope scope(env->GetIsolate());
1803 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1805 // It is impossible to delete a global property, so we are about to delete a
1806 // property of the "a" object. Also, the "p" object can't be an empty one
1807 // because the empty object is static and isn't actually deleted.
1808 CompileRun("a = { p: { r: {} } };");
1809 const v8::HeapSnapshot* snapshot =
1810 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
1811 CHECK(ValidateSnapshot(snapshot));
1812 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
1813 const v8::HeapGraphNode* obj = GetProperty(
1814 global, v8::HeapGraphEdge::kProperty, "a");
1815 const v8::HeapGraphNode* prop = GetProperty(
1816 obj, v8::HeapGraphEdge::kProperty, "p");
1818 // Perform the check inside a nested local scope to avoid creating a
1819 // reference to the object we are deleting.
1820 v8::HandleScope scope(env->GetIsolate());
1821 CHECK(heap_profiler->FindObjectById(prop->GetId())->IsObject());
1823 CompileRun("delete a.p;");
1824 CHECK(heap_profiler->FindObjectById(prop->GetId()).IsEmpty());
1828 static int StringCmp(const char* ref, i::String* act) {
1829 i::SmartArrayPointer<char> s_act = act->ToCString();
1830 int result = strcmp(ref, s_act.get());
1832 fprintf(stderr, "Expected: \"%s\", Actual: \"%s\"\n", ref, s_act.get());
1837 TEST(GetConstructorName) {
1839 v8::HandleScope scope(env->GetIsolate());
1842 "function Constructor1() {};\n"
1843 "var obj1 = new Constructor1();\n"
1844 "var Constructor2 = function() {};\n"
1845 "var obj2 = new Constructor2();\n"
1847 "obj3.constructor = function Constructor3() {};\n"
1849 "// Slow properties\n"
1850 "for (var i=0; i<2000; ++i) obj4[\"p\" + i] = i;\n"
1851 "obj4.constructor = function Constructor4() {};\n"
1854 "obj6.constructor = 6;");
1855 v8::Local<v8::Object> js_global =
1856 env->Global()->GetPrototype().As<v8::Object>();
1857 v8::Local<v8::Object> obj1 = js_global->Get(v8_str("obj1")).As<v8::Object>();
1858 i::Handle<i::JSObject> js_obj1 = v8::Utils::OpenHandle(*obj1);
1859 CHECK_EQ(0, StringCmp(
1860 "Constructor1", i::V8HeapExplorer::GetConstructorName(*js_obj1)));
1861 v8::Local<v8::Object> obj2 = js_global->Get(v8_str("obj2")).As<v8::Object>();
1862 i::Handle<i::JSObject> js_obj2 = v8::Utils::OpenHandle(*obj2);
1863 CHECK_EQ(0, StringCmp(
1864 "Constructor2", i::V8HeapExplorer::GetConstructorName(*js_obj2)));
1865 v8::Local<v8::Object> obj3 = js_global->Get(v8_str("obj3")).As<v8::Object>();
1866 i::Handle<i::JSObject> js_obj3 = v8::Utils::OpenHandle(*obj3);
1867 // TODO(verwaest): Restore to Constructor3 once supported by the
1868 // heap-snapshot-generator.
1870 0, StringCmp("Object", i::V8HeapExplorer::GetConstructorName(*js_obj3)));
1871 v8::Local<v8::Object> obj4 = js_global->Get(v8_str("obj4")).As<v8::Object>();
1872 i::Handle<i::JSObject> js_obj4 = v8::Utils::OpenHandle(*obj4);
1873 // TODO(verwaest): Restore to Constructor4 once supported by the
1874 // heap-snapshot-generator.
1876 0, StringCmp("Object", i::V8HeapExplorer::GetConstructorName(*js_obj4)));
1877 v8::Local<v8::Object> obj5 = js_global->Get(v8_str("obj5")).As<v8::Object>();
1878 i::Handle<i::JSObject> js_obj5 = v8::Utils::OpenHandle(*obj5);
1879 CHECK_EQ(0, StringCmp(
1880 "Object", i::V8HeapExplorer::GetConstructorName(*js_obj5)));
1881 v8::Local<v8::Object> obj6 = js_global->Get(v8_str("obj6")).As<v8::Object>();
1882 i::Handle<i::JSObject> js_obj6 = v8::Utils::OpenHandle(*obj6);
1883 CHECK_EQ(0, StringCmp(
1884 "Object", i::V8HeapExplorer::GetConstructorName(*js_obj6)));
1888 TEST(FastCaseAccessors) {
1890 v8::HandleScope scope(env->GetIsolate());
1891 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1893 CompileRun("var obj1 = {};\n"
1894 "obj1.__defineGetter__('propWithGetter', function Y() {\n"
1897 "obj1.__defineSetter__('propWithSetter', function Z(value) {\n"
1898 " return this.value_ = value;\n"
1900 const v8::HeapSnapshot* snapshot =
1901 heap_profiler->TakeHeapSnapshot(v8_str("fastCaseAccessors"));
1902 CHECK(ValidateSnapshot(snapshot));
1904 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
1905 CHECK_NE(NULL, global);
1906 const v8::HeapGraphNode* obj1 =
1907 GetProperty(global, v8::HeapGraphEdge::kProperty, "obj1");
1908 CHECK_NE(NULL, obj1);
1909 const v8::HeapGraphNode* func;
1910 func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithGetter");
1911 CHECK_NE(NULL, func);
1912 func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithGetter");
1913 CHECK_EQ(NULL, func);
1914 func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithSetter");
1915 CHECK_NE(NULL, func);
1916 func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithSetter");
1917 CHECK_EQ(NULL, func);
1921 TEST(SlowCaseAccessors) {
1923 v8::HandleScope scope(env->GetIsolate());
1924 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1926 CompileRun("var obj1 = {};\n"
1927 "for (var i = 0; i < 100; ++i) obj1['z' + i] = {};"
1928 "obj1.__defineGetter__('propWithGetter', function Y() {\n"
1931 "obj1.__defineSetter__('propWithSetter', function Z(value) {\n"
1932 " return this.value_ = value;\n"
1934 const v8::HeapSnapshot* snapshot =
1935 heap_profiler->TakeHeapSnapshot(v8_str("slowCaseAccessors"));
1936 CHECK(ValidateSnapshot(snapshot));
1938 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
1939 CHECK_NE(NULL, global);
1940 const v8::HeapGraphNode* obj1 =
1941 GetProperty(global, v8::HeapGraphEdge::kProperty, "obj1");
1942 CHECK_NE(NULL, obj1);
1943 const v8::HeapGraphNode* func;
1944 func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithGetter");
1945 CHECK_NE(NULL, func);
1946 func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithGetter");
1947 CHECK_EQ(NULL, func);
1948 func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "set propWithSetter");
1949 CHECK_NE(NULL, func);
1950 func = GetProperty(obj1, v8::HeapGraphEdge::kProperty, "get propWithSetter");
1951 CHECK_EQ(NULL, func);
1955 TEST(HiddenPropertiesFastCase) {
1957 v8::HandleScope scope(env->GetIsolate());
1958 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1961 "function C(x) { this.a = this; this.b = x; }\n"
1962 "c = new C(2012);\n");
1963 const v8::HeapSnapshot* snapshot =
1964 heap_profiler->TakeHeapSnapshot(v8_str("HiddenPropertiesFastCase1"));
1965 CHECK(ValidateSnapshot(snapshot));
1966 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
1967 const v8::HeapGraphNode* c =
1968 GetProperty(global, v8::HeapGraphEdge::kProperty, "c");
1970 const v8::HeapGraphNode* hidden_props =
1971 GetProperty(c, v8::HeapGraphEdge::kInternal, "hidden_properties");
1972 CHECK_EQ(NULL, hidden_props);
1974 v8::Handle<v8::Value> cHandle =
1975 env->Global()->Get(v8::String::NewFromUtf8(env->GetIsolate(), "c"));
1976 CHECK(!cHandle.IsEmpty() && cHandle->IsObject());
1977 cHandle->ToObject()->SetHiddenValue(v8_str("key"), v8_str("val"));
1979 snapshot = heap_profiler->TakeHeapSnapshot(
1980 v8_str("HiddenPropertiesFastCase2"));
1981 CHECK(ValidateSnapshot(snapshot));
1982 global = GetGlobalObject(snapshot);
1983 c = GetProperty(global, v8::HeapGraphEdge::kProperty, "c");
1985 hidden_props = GetProperty(c, v8::HeapGraphEdge::kInternal,
1986 "hidden_properties");
1987 CHECK_NE(NULL, hidden_props);
1991 TEST(AccessorInfo) {
1993 v8::HandleScope scope(env->GetIsolate());
1994 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
1996 CompileRun("function foo(x) { }\n");
1997 const v8::HeapSnapshot* snapshot =
1998 heap_profiler->TakeHeapSnapshot(v8_str("AccessorInfoTest"));
1999 CHECK(ValidateSnapshot(snapshot));
2000 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
2001 const v8::HeapGraphNode* foo =
2002 GetProperty(global, v8::HeapGraphEdge::kProperty, "foo");
2003 CHECK_NE(NULL, foo);
2004 const v8::HeapGraphNode* map =
2005 GetProperty(foo, v8::HeapGraphEdge::kInternal, "map");
2006 CHECK_NE(NULL, map);
2007 const v8::HeapGraphNode* descriptors =
2008 GetProperty(map, v8::HeapGraphEdge::kInternal, "descriptors");
2009 CHECK_NE(NULL, descriptors);
2010 const v8::HeapGraphNode* length_name =
2011 GetProperty(descriptors, v8::HeapGraphEdge::kInternal, "2");
2012 CHECK_NE(NULL, length_name);
2013 CHECK_EQ("length", *v8::String::Utf8Value(length_name->GetName()));
2014 const v8::HeapGraphNode* length_accessor =
2015 GetProperty(descriptors, v8::HeapGraphEdge::kInternal, "4");
2016 CHECK_NE(NULL, length_accessor);
2017 CHECK_EQ("system / ExecutableAccessorInfo",
2018 *v8::String::Utf8Value(length_accessor->GetName()));
2019 const v8::HeapGraphNode* name =
2020 GetProperty(length_accessor, v8::HeapGraphEdge::kInternal, "name");
2021 CHECK_NE(NULL, name);
2022 const v8::HeapGraphNode* getter =
2023 GetProperty(length_accessor, v8::HeapGraphEdge::kInternal, "getter");
2024 CHECK_NE(NULL, getter);
2025 const v8::HeapGraphNode* setter =
2026 GetProperty(length_accessor, v8::HeapGraphEdge::kInternal, "setter");
2027 CHECK_NE(NULL, setter);
2031 bool HasWeakEdge(const v8::HeapGraphNode* node) {
2032 for (int i = 0; i < node->GetChildrenCount(); ++i) {
2033 const v8::HeapGraphEdge* handle_edge = node->GetChild(i);
2034 if (handle_edge->GetType() == v8::HeapGraphEdge::kWeak) return true;
2040 bool HasWeakGlobalHandle() {
2041 v8::Isolate* isolate = CcTest::isolate();
2042 v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
2043 const v8::HeapSnapshot* snapshot =
2044 heap_profiler->TakeHeapSnapshot(v8_str("weaks"));
2045 CHECK(ValidateSnapshot(snapshot));
2046 const v8::HeapGraphNode* gc_roots = GetNode(
2047 snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "(GC roots)");
2048 CHECK_NE(NULL, gc_roots);
2049 const v8::HeapGraphNode* global_handles = GetNode(
2050 gc_roots, v8::HeapGraphNode::kSynthetic, "(Global handles)");
2051 CHECK_NE(NULL, global_handles);
2052 return HasWeakEdge(global_handles);
2056 static void PersistentHandleCallback(
2057 const v8::WeakCallbackData<v8::Object, v8::Persistent<v8::Object> >& data) {
2058 data.GetParameter()->Reset();
2059 delete data.GetParameter();
2063 TEST(WeakGlobalHandle) {
2065 v8::HandleScope scope(env->GetIsolate());
2067 CHECK(!HasWeakGlobalHandle());
2069 v8::Persistent<v8::Object> handle(env->GetIsolate(),
2070 v8::Object::New(env->GetIsolate()));
2071 handle.SetWeak(&handle, PersistentHandleCallback);
2073 CHECK(HasWeakGlobalHandle());
2077 TEST(SfiAndJsFunctionWeakRefs) {
2079 v8::HandleScope scope(env->GetIsolate());
2080 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2083 "fun = (function (x) { return function () { return x + 1; } })(1);");
2084 const v8::HeapSnapshot* snapshot =
2085 heap_profiler->TakeHeapSnapshot(v8_str("fun"));
2086 CHECK(ValidateSnapshot(snapshot));
2087 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
2088 CHECK_NE(NULL, global);
2089 const v8::HeapGraphNode* fun =
2090 GetProperty(global, v8::HeapGraphEdge::kProperty, "fun");
2091 CHECK(!HasWeakEdge(fun));
2092 const v8::HeapGraphNode* shared =
2093 GetProperty(fun, v8::HeapGraphEdge::kInternal, "shared");
2094 CHECK(!HasWeakEdge(shared));
2098 TEST(NoDebugObjectInSnapshot) {
2100 v8::HandleScope scope(env->GetIsolate());
2101 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2103 CHECK(CcTest::i_isolate()->debug()->Load());
2104 CompileRun("foo = {};");
2105 const v8::HeapSnapshot* snapshot =
2106 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2107 CHECK(ValidateSnapshot(snapshot));
2108 const v8::HeapGraphNode* root = snapshot->GetRoot();
2109 int globals_count = 0;
2110 for (int i = 0; i < root->GetChildrenCount(); ++i) {
2111 const v8::HeapGraphEdge* edge = root->GetChild(i);
2112 if (edge->GetType() == v8::HeapGraphEdge::kShortcut) {
2114 const v8::HeapGraphNode* global = edge->GetToNode();
2115 const v8::HeapGraphNode* foo =
2116 GetProperty(global, v8::HeapGraphEdge::kProperty, "foo");
2117 CHECK_NE(NULL, foo);
2120 CHECK_EQ(1, globals_count);
2124 TEST(AllStrongGcRootsHaveNames) {
2126 v8::HandleScope scope(env->GetIsolate());
2127 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2129 CompileRun("foo = {};");
2130 const v8::HeapSnapshot* snapshot =
2131 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2132 CHECK(ValidateSnapshot(snapshot));
2133 const v8::HeapGraphNode* gc_roots = GetNode(
2134 snapshot->GetRoot(), v8::HeapGraphNode::kSynthetic, "(GC roots)");
2135 CHECK_NE(NULL, gc_roots);
2136 const v8::HeapGraphNode* strong_roots = GetNode(
2137 gc_roots, v8::HeapGraphNode::kSynthetic, "(Strong roots)");
2138 CHECK_NE(NULL, strong_roots);
2139 for (int i = 0; i < strong_roots->GetChildrenCount(); ++i) {
2140 const v8::HeapGraphEdge* edge = strong_roots->GetChild(i);
2141 CHECK_EQ(v8::HeapGraphEdge::kInternal, edge->GetType());
2142 v8::String::Utf8Value name(edge->GetName());
2143 CHECK(isalpha(**name));
2148 TEST(NoRefsToNonEssentialEntries) {
2150 v8::HandleScope scope(env->GetIsolate());
2151 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2152 CompileRun("global_object = {};\n");
2153 const v8::HeapSnapshot* snapshot =
2154 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2155 CHECK(ValidateSnapshot(snapshot));
2156 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
2157 const v8::HeapGraphNode* global_object =
2158 GetProperty(global, v8::HeapGraphEdge::kProperty, "global_object");
2159 CHECK_NE(NULL, global_object);
2160 const v8::HeapGraphNode* properties =
2161 GetProperty(global_object, v8::HeapGraphEdge::kInternal, "properties");
2162 CHECK_EQ(NULL, properties);
2163 const v8::HeapGraphNode* elements =
2164 GetProperty(global_object, v8::HeapGraphEdge::kInternal, "elements");
2165 CHECK_EQ(NULL, elements);
2169 TEST(MapHasDescriptorsAndTransitions) {
2171 v8::HandleScope scope(env->GetIsolate());
2172 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2173 CompileRun("obj = { a: 10 };\n");
2174 const v8::HeapSnapshot* snapshot =
2175 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2176 CHECK(ValidateSnapshot(snapshot));
2177 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
2178 const v8::HeapGraphNode* global_object =
2179 GetProperty(global, v8::HeapGraphEdge::kProperty, "obj");
2180 CHECK_NE(NULL, global_object);
2182 const v8::HeapGraphNode* map =
2183 GetProperty(global_object, v8::HeapGraphEdge::kInternal, "map");
2184 CHECK_NE(NULL, map);
2185 const v8::HeapGraphNode* own_descriptors = GetProperty(
2186 map, v8::HeapGraphEdge::kInternal, "descriptors");
2187 CHECK_NE(NULL, own_descriptors);
2188 const v8::HeapGraphNode* own_transitions = GetProperty(
2189 map, v8::HeapGraphEdge::kInternal, "transitions");
2190 CHECK_EQ(NULL, own_transitions);
2194 TEST(ManyLocalsInSharedContext) {
2196 v8::HandleScope scope(env->GetIsolate());
2197 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2198 int num_objects = 6000;
2202 "result.push('(function outer() {');"
2203 "for (var i = 0; i < n; i++) {"
2204 " var f = 'function f_' + i + '() { ';"
2206 " f += 'f_' + (i - 1) + '();';"
2210 "result.push('return f_' + (n - 1) + ';');"
2211 "result.push('})()');"
2212 "var ok = eval(result.join('\\n'));");
2213 const v8::HeapSnapshot* snapshot =
2214 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2215 CHECK(ValidateSnapshot(snapshot));
2217 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
2218 CHECK_NE(NULL, global);
2219 const v8::HeapGraphNode* ok_object =
2220 GetProperty(global, v8::HeapGraphEdge::kProperty, "ok");
2221 CHECK_NE(NULL, ok_object);
2222 const v8::HeapGraphNode* context_object =
2223 GetProperty(ok_object, v8::HeapGraphEdge::kInternal, "context");
2224 CHECK_NE(NULL, context_object);
2225 // Check the objects are not duplicated in the context.
2226 CHECK_EQ(v8::internal::Context::MIN_CONTEXT_SLOTS + num_objects - 1,
2227 context_object->GetChildrenCount());
2228 // Check all the objects have got their names.
2229 // ... well check just every 15th because otherwise it's too slow in debug.
2230 for (int i = 0; i < num_objects - 1; i += 15) {
2231 i::EmbeddedVector<char, 100> var_name;
2232 i::SNPrintF(var_name, "f_%d", i);
2233 const v8::HeapGraphNode* f_object = GetProperty(
2234 context_object, v8::HeapGraphEdge::kContextVariable, var_name.start());
2235 CHECK_NE(NULL, f_object);
2240 TEST(AllocationSitesAreVisible) {
2242 v8::Isolate* isolate = env->GetIsolate();
2243 v8::HandleScope scope(isolate);
2244 v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
2246 "fun = function () { var a = [3, 2, 1]; return a; }\n"
2248 const v8::HeapSnapshot* snapshot =
2249 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2250 CHECK(ValidateSnapshot(snapshot));
2252 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
2253 CHECK_NE(NULL, global);
2254 const v8::HeapGraphNode* fun_code =
2255 GetProperty(global, v8::HeapGraphEdge::kProperty, "fun");
2256 CHECK_NE(NULL, fun_code);
2257 const v8::HeapGraphNode* literals =
2258 GetProperty(fun_code, v8::HeapGraphEdge::kInternal, "literals");
2259 CHECK_NE(NULL, literals);
2260 CHECK_EQ(v8::HeapGraphNode::kArray, literals->GetType());
2261 CHECK_EQ(2, literals->GetChildrenCount());
2263 // The second value in the literals array should be the boilerplate,
2264 // after an AllocationSite.
2265 const v8::HeapGraphEdge* prop = literals->GetChild(1);
2266 const v8::HeapGraphNode* allocation_site = prop->GetToNode();
2267 v8::String::Utf8Value name(allocation_site->GetName());
2268 CHECK_EQ("system / AllocationSite", *name);
2269 const v8::HeapGraphNode* transition_info =
2270 GetProperty(allocation_site, v8::HeapGraphEdge::kInternal,
2272 CHECK_NE(NULL, transition_info);
2274 const v8::HeapGraphNode* elements =
2275 GetProperty(transition_info, v8::HeapGraphEdge::kInternal,
2277 CHECK_NE(NULL, elements);
2278 CHECK_EQ(v8::HeapGraphNode::kArray, elements->GetType());
2279 CHECK_EQ(v8::internal::FixedArray::SizeFor(3),
2280 static_cast<int>(elements->GetShallowSize()));
2282 v8::Handle<v8::Value> array_val =
2283 heap_profiler->FindObjectById(transition_info->GetId());
2284 CHECK(array_val->IsArray());
2285 v8::Handle<v8::Array> array = v8::Handle<v8::Array>::Cast(array_val);
2286 // Verify the array is "a" in the code above.
2287 CHECK_EQ(3, array->Length());
2288 CHECK_EQ(v8::Integer::New(isolate, 3),
2289 array->Get(v8::Integer::New(isolate, 0)));
2290 CHECK_EQ(v8::Integer::New(isolate, 2),
2291 array->Get(v8::Integer::New(isolate, 1)));
2292 CHECK_EQ(v8::Integer::New(isolate, 1),
2293 array->Get(v8::Integer::New(isolate, 2)));
2297 TEST(JSFunctionHasCodeLink) {
2299 v8::HandleScope scope(env->GetIsolate());
2300 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2301 CompileRun("function foo(x, y) { return x + y; }\n");
2302 const v8::HeapSnapshot* snapshot =
2303 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2304 CHECK(ValidateSnapshot(snapshot));
2305 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
2306 const v8::HeapGraphNode* foo_func =
2307 GetProperty(global, v8::HeapGraphEdge::kProperty, "foo");
2308 CHECK_NE(NULL, foo_func);
2309 const v8::HeapGraphNode* code =
2310 GetProperty(foo_func, v8::HeapGraphEdge::kInternal, "code");
2311 CHECK_NE(NULL, code);
2315 static const v8::HeapGraphNode* GetNodeByPath(const v8::HeapSnapshot* snapshot,
2318 const v8::HeapGraphNode* node = snapshot->GetRoot();
2319 for (int current_depth = 0; current_depth < depth; ++current_depth) {
2320 int i, count = node->GetChildrenCount();
2321 for (i = 0; i < count; ++i) {
2322 const v8::HeapGraphEdge* edge = node->GetChild(i);
2323 const v8::HeapGraphNode* to_node = edge->GetToNode();
2324 v8::String::Utf8Value edge_name(edge->GetName());
2325 v8::String::Utf8Value node_name(to_node->GetName());
2326 i::EmbeddedVector<char, 100> name;
2327 i::SNPrintF(name, "%s::%s", *edge_name, *node_name);
2328 if (strstr(name.start(), path[current_depth])) {
2333 if (i == count) return NULL;
2339 TEST(CheckCodeNames) {
2341 v8::HandleScope scope(env->GetIsolate());
2342 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2343 CompileRun("var a = 1.1;");
2344 const v8::HeapSnapshot* snapshot =
2345 heap_profiler->TakeHeapSnapshot(v8_str("CheckCodeNames"));
2346 CHECK(ValidateSnapshot(snapshot));
2348 const char* stub_path[] = {
2352 "::(ArraySingleArgumentConstructorStub code)"
2354 const v8::HeapGraphNode* node = GetNodeByPath(snapshot,
2355 stub_path, arraysize(stub_path));
2356 CHECK_NE(NULL, node);
2358 const char* builtin_path1[] = {
2361 "::(KeyedLoadIC_Generic builtin)"
2363 node = GetNodeByPath(snapshot, builtin_path1, arraysize(builtin_path1));
2364 CHECK_NE(NULL, node);
2366 const char* builtin_path2[] = {"::(GC roots)", "::(Builtins)",
2367 "::(CompileLazy builtin)"};
2368 node = GetNodeByPath(snapshot, builtin_path2, arraysize(builtin_path2));
2369 CHECK_NE(NULL, node);
2370 v8::String::Utf8Value node_name(node->GetName());
2371 CHECK_EQ("(CompileLazy builtin)", *node_name);
2375 static const char* record_trace_tree_source =
2376 "var topFunctions = [];\n"
2377 "var global = this;\n"
2378 "function generateFunctions(width, depth) {\n"
2379 " var script = [];\n"
2380 " for (var i = 0; i < width; i++) {\n"
2381 " for (var j = 0; j < depth; j++) {\n"
2382 " script.push('function f_' + i + '_' + j + '(x) {\\n');\n"
2383 " script.push(' try {\\n');\n"
2384 " if (j < depth-2) {\n"
2385 " script.push(' return f_' + i + '_' + (j+1) + '(x+1);\\n');\n"
2386 " } else if (j == depth - 2) {\n"
2387 " script.push(' return new f_' + i + '_' + (depth - 1) + '();\\n');\n"
2388 " } else if (j == depth - 1) {\n"
2389 " script.push(' this.ts = Date.now();\\n');\n"
2391 " script.push(' } catch (e) {}\\n');\n"
2392 " script.push('}\\n');\n"
2396 " var script = script.join('');\n"
2397 " // throw script;\n"
2398 " global.eval(script);\n"
2399 " for (var i = 0; i < width; i++) {\n"
2400 " topFunctions.push(this['f_' + i + '_0']);\n"
2406 "generateFunctions(width, depth);\n"
2407 "var instances = [];\n"
2408 "function start() {\n"
2409 " for (var i = 0; i < width; i++) {\n"
2410 " instances.push(topFunctions[i](0));\n"
2414 "for (var i = 0; i < 100; i++) start();\n";
2417 static AllocationTraceNode* FindNode(
2418 AllocationTracker* tracker, const Vector<const char*>& names) {
2419 AllocationTraceNode* node = tracker->trace_tree()->root();
2420 for (int i = 0; node != NULL && i < names.length(); i++) {
2421 const char* name = names[i];
2422 Vector<AllocationTraceNode*> children = node->children();
2424 for (int j = 0; j < children.length(); j++) {
2425 unsigned index = children[j]->function_info_index();
2426 AllocationTracker::FunctionInfo* info =
2427 tracker->function_info_list()[index];
2428 if (info && strcmp(info->name, name) == 0) {
2438 TEST(ArrayGrowLeftTrim) {
2440 v8::HandleScope scope(env->GetIsolate());
2441 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2442 heap_profiler->StartTrackingHeapObjects(true);
2446 "for (var i = 0; i < 5; ++i)\n"
2448 "for (var i = 0; i < 3; ++i)\n"
2451 const char* names[] = {""};
2452 AllocationTracker* tracker =
2453 reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
2454 CHECK_NE(NULL, tracker);
2455 // Resolve all function locations.
2456 tracker->PrepareForSerialization();
2457 // Print for better diagnostics in case of failure.
2458 tracker->trace_tree()->Print(tracker);
2460 AllocationTraceNode* node =
2461 FindNode(tracker, Vector<const char*>(names, arraysize(names)));
2462 CHECK_NE(NULL, node);
2463 CHECK_GE(node->allocation_count(), 2);
2464 CHECK_GE(node->allocation_size(), 4 * 5);
2465 heap_profiler->StopTrackingHeapObjects();
2469 TEST(TrackHeapAllocations) {
2470 v8::HandleScope scope(v8::Isolate::GetCurrent());
2473 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2474 heap_profiler->StartTrackingHeapObjects(true);
2476 CompileRun(record_trace_tree_source);
2478 AllocationTracker* tracker =
2479 reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
2480 CHECK_NE(NULL, tracker);
2481 // Resolve all function locations.
2482 tracker->PrepareForSerialization();
2483 // Print for better diagnostics in case of failure.
2484 tracker->trace_tree()->Print(tracker);
2486 const char* names[] = {"", "start", "f_0_0", "f_0_1", "f_0_2"};
2487 AllocationTraceNode* node =
2488 FindNode(tracker, Vector<const char*>(names, arraysize(names)));
2489 CHECK_NE(NULL, node);
2490 CHECK_GE(node->allocation_count(), 100);
2491 CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
2492 heap_profiler->StopTrackingHeapObjects();
2496 static const char* inline_heap_allocation_source =
2497 "function f_0(x) {\n"
2498 " return f_1(x+1);\n"
2500 "%NeverOptimizeFunction(f_0);\n"
2501 "function f_1(x) {\n"
2502 " return new f_2(x+1);\n"
2504 "function f_2(x) {\n"
2507 "var instances = [];\n"
2508 "function start() {\n"
2509 " instances.push(f_0(0));\n"
2512 "for (var i = 0; i < 100; i++) start();\n";
2515 TEST(TrackBumpPointerAllocations) {
2516 i::FLAG_allow_natives_syntax = true;
2517 v8::HandleScope scope(v8::Isolate::GetCurrent());
2520 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2521 const char* names[] = {"", "start", "f_0", "f_1"};
2522 // First check that normally all allocations are recorded.
2524 heap_profiler->StartTrackingHeapObjects(true);
2526 CompileRun(inline_heap_allocation_source);
2528 AllocationTracker* tracker =
2529 reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
2530 CHECK_NE(NULL, tracker);
2531 // Resolve all function locations.
2532 tracker->PrepareForSerialization();
2533 // Print for better diagnostics in case of failure.
2534 tracker->trace_tree()->Print(tracker);
2536 AllocationTraceNode* node =
2537 FindNode(tracker, Vector<const char*>(names, arraysize(names)));
2538 CHECK_NE(NULL, node);
2539 CHECK_GE(node->allocation_count(), 100);
2540 CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
2541 heap_profiler->StopTrackingHeapObjects();
2545 heap_profiler->StartTrackingHeapObjects(true);
2547 // Now check that not all allocations are tracked if we manually reenable
2548 // inline allocations.
2549 CHECK(CcTest::heap()->inline_allocation_disabled());
2550 CcTest::heap()->EnableInlineAllocation();
2552 CompileRun(inline_heap_allocation_source);
2554 AllocationTracker* tracker =
2555 reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
2556 CHECK_NE(NULL, tracker);
2557 // Resolve all function locations.
2558 tracker->PrepareForSerialization();
2559 // Print for better diagnostics in case of failure.
2560 tracker->trace_tree()->Print(tracker);
2562 AllocationTraceNode* node =
2563 FindNode(tracker, Vector<const char*>(names, arraysize(names)));
2564 CHECK_NE(NULL, node);
2565 CHECK_LT(node->allocation_count(), 100);
2567 CcTest::heap()->DisableInlineAllocation();
2568 heap_profiler->StopTrackingHeapObjects();
2573 TEST(TrackV8ApiAllocation) {
2574 v8::HandleScope scope(v8::Isolate::GetCurrent());
2577 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2578 const char* names[] = { "(V8 API)" };
2579 heap_profiler->StartTrackingHeapObjects(true);
2581 v8::Handle<v8::Object> o1 = v8::Object::New(env->GetIsolate());
2584 AllocationTracker* tracker =
2585 reinterpret_cast<i::HeapProfiler*>(heap_profiler)->allocation_tracker();
2586 CHECK_NE(NULL, tracker);
2587 // Resolve all function locations.
2588 tracker->PrepareForSerialization();
2589 // Print for better diagnostics in case of failure.
2590 tracker->trace_tree()->Print(tracker);
2592 AllocationTraceNode* node =
2593 FindNode(tracker, Vector<const char*>(names, arraysize(names)));
2594 CHECK_NE(NULL, node);
2595 CHECK_GE(node->allocation_count(), 2);
2596 CHECK_GE(node->allocation_size(), 4 * node->allocation_count());
2597 heap_profiler->StopTrackingHeapObjects();
2601 TEST(ArrayBufferAndArrayBufferView) {
2603 v8::HandleScope scope(env->GetIsolate());
2604 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2605 CompileRun("arr1 = new Uint32Array(100);\n");
2606 const v8::HeapSnapshot* snapshot =
2607 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2608 CHECK(ValidateSnapshot(snapshot));
2609 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
2610 const v8::HeapGraphNode* arr1_obj =
2611 GetProperty(global, v8::HeapGraphEdge::kProperty, "arr1");
2612 CHECK_NE(NULL, arr1_obj);
2613 const v8::HeapGraphNode* arr1_buffer =
2614 GetProperty(arr1_obj, v8::HeapGraphEdge::kInternal, "buffer");
2615 CHECK_NE(NULL, arr1_buffer);
2616 const v8::HeapGraphNode* first_view =
2617 GetProperty(arr1_buffer, v8::HeapGraphEdge::kWeak, "weak_first_view");
2618 CHECK_NE(NULL, first_view);
2619 const v8::HeapGraphNode* backing_store =
2620 GetProperty(arr1_buffer, v8::HeapGraphEdge::kInternal, "backing_store");
2621 CHECK_NE(NULL, backing_store);
2622 CHECK_EQ(400, static_cast<int>(backing_store->GetShallowSize()));
2626 static int GetRetainersCount(const v8::HeapSnapshot* snapshot,
2627 const v8::HeapGraphNode* node) {
2629 for (int i = 0, l = snapshot->GetNodesCount(); i < l; ++i) {
2630 const v8::HeapGraphNode* parent = snapshot->GetNode(i);
2631 for (int j = 0, l2 = parent->GetChildrenCount(); j < l2; ++j) {
2632 if (parent->GetChild(j)->GetToNode() == node) {
2641 TEST(ArrayBufferSharedBackingStore) {
2643 v8::Isolate* isolate = env->GetIsolate();
2644 v8::HandleScope handle_scope(isolate);
2645 v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
2647 v8::Local<v8::ArrayBuffer> ab = v8::ArrayBuffer::New(isolate, 1024);
2648 CHECK_EQ(1024, static_cast<int>(ab->ByteLength()));
2649 CHECK(!ab->IsExternal());
2650 v8::ArrayBuffer::Contents ab_contents = ab->Externalize();
2651 CHECK(ab->IsExternal());
2653 CHECK_EQ(1024, static_cast<int>(ab_contents.ByteLength()));
2654 void* data = ab_contents.Data();
2655 DCHECK(data != NULL);
2656 v8::Local<v8::ArrayBuffer> ab2 =
2657 v8::ArrayBuffer::New(isolate, data, ab_contents.ByteLength());
2658 CHECK(ab2->IsExternal());
2659 env->Global()->Set(v8_str("ab1"), ab);
2660 env->Global()->Set(v8_str("ab2"), ab2);
2662 v8::Handle<v8::Value> result = CompileRun("ab2.byteLength");
2663 CHECK_EQ(1024, result->Int32Value());
2665 const v8::HeapSnapshot* snapshot =
2666 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2667 CHECK(ValidateSnapshot(snapshot));
2668 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
2669 const v8::HeapGraphNode* ab1_node =
2670 GetProperty(global, v8::HeapGraphEdge::kProperty, "ab1");
2671 CHECK_NE(NULL, ab1_node);
2672 const v8::HeapGraphNode* ab1_data =
2673 GetProperty(ab1_node, v8::HeapGraphEdge::kInternal, "backing_store");
2674 CHECK_NE(NULL, ab1_data);
2675 const v8::HeapGraphNode* ab2_node =
2676 GetProperty(global, v8::HeapGraphEdge::kProperty, "ab2");
2677 CHECK_NE(NULL, ab2_node);
2678 const v8::HeapGraphNode* ab2_data =
2679 GetProperty(ab2_node, v8::HeapGraphEdge::kInternal, "backing_store");
2680 CHECK_NE(NULL, ab2_data);
2681 CHECK_EQ(ab1_data, ab2_data);
2682 CHECK_EQ(2, GetRetainersCount(snapshot, ab1_data));
2688 v8::Isolate* isolate = CcTest::isolate();
2689 v8::HandleScope scope(isolate);
2691 v8::Handle<v8::Object> global_proxy = env->Global();
2692 v8::Handle<v8::Object> global = global_proxy->GetPrototype().As<v8::Object>();
2694 i::Factory* factory = CcTest::i_isolate()->factory();
2695 i::Handle<i::String> string = factory->NewStringFromStaticChars("string");
2696 i::Handle<i::Object> box = factory->NewBox(string);
2697 global->Set(0, v8::ToApiHandle<v8::Object>(box));
2699 v8::HeapProfiler* heap_profiler = isolate->GetHeapProfiler();
2700 const v8::HeapSnapshot* snapshot =
2701 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2702 CHECK(ValidateSnapshot(snapshot));
2703 const v8::HeapGraphNode* global_node = GetGlobalObject(snapshot);
2704 const v8::HeapGraphNode* box_node =
2705 GetProperty(global_node, v8::HeapGraphEdge::kElement, "0");
2706 CHECK_NE(NULL, box_node);
2707 v8::String::Utf8Value box_node_name(box_node->GetName());
2708 CHECK_EQ("system / Box", *box_node_name);
2709 const v8::HeapGraphNode* box_value =
2710 GetProperty(box_node, v8::HeapGraphEdge::kInternal, "value");
2711 CHECK_NE(NULL, box_value);
2715 TEST(WeakContainers) {
2716 i::FLAG_allow_natives_syntax = true;
2718 v8::HandleScope scope(env->GetIsolate());
2719 if (!CcTest::i_isolate()->use_crankshaft()) return;
2720 v8::HeapProfiler* heap_profiler = env->GetIsolate()->GetHeapProfiler();
2722 "function foo(a) { return a.x; }\n"
2723 "obj = {x : 123};\n"
2726 "%OptimizeFunctionOnNextCall(foo);\n"
2728 const v8::HeapSnapshot* snapshot =
2729 heap_profiler->TakeHeapSnapshot(v8_str("snapshot"));
2730 CHECK(ValidateSnapshot(snapshot));
2731 const v8::HeapGraphNode* global = GetGlobalObject(snapshot);
2732 const v8::HeapGraphNode* obj =
2733 GetProperty(global, v8::HeapGraphEdge::kProperty, "obj");
2734 CHECK_NE(NULL, obj);
2735 const v8::HeapGraphNode* map =
2736 GetProperty(obj, v8::HeapGraphEdge::kInternal, "map");
2737 CHECK_NE(NULL, map);
2738 const v8::HeapGraphNode* dependent_code =
2739 GetProperty(map, v8::HeapGraphEdge::kInternal, "dependent_code");
2740 if (!dependent_code) return;
2741 int count = dependent_code->GetChildrenCount();
2743 for (int i = 0; i < count; ++i) {
2744 const v8::HeapGraphEdge* prop = dependent_code->GetChild(i);
2745 CHECK_EQ(v8::HeapGraphEdge::kWeak, prop->GetType());
2750 static inline i::Address ToAddress(int n) {
2751 return reinterpret_cast<i::Address>(n);
2755 TEST(AddressToTraceMap) {
2756 i::AddressToTraceMap map;
2758 CHECK_EQ(0, map.GetTraceNodeId(ToAddress(150)));
2760 // [0x100, 0x200) -> 1
2761 map.AddRange(ToAddress(0x100), 0x100, 1U);
2762 CHECK_EQ(0, map.GetTraceNodeId(ToAddress(0x50)));
2763 CHECK_EQ(1, map.GetTraceNodeId(ToAddress(0x100)));
2764 CHECK_EQ(1, map.GetTraceNodeId(ToAddress(0x150)));
2765 CHECK_EQ(0, map.GetTraceNodeId(ToAddress(0x100 + 0x100)));
2766 CHECK_EQ(1, static_cast<int>(map.size()));
2768 // [0x100, 0x200) -> 1, [0x200, 0x300) -> 2
2769 map.AddRange(ToAddress(0x200), 0x100, 2U);
2770 CHECK_EQ(2, map.GetTraceNodeId(ToAddress(0x2a0)));
2771 CHECK_EQ(2, static_cast<int>(map.size()));
2773 // [0x100, 0x180) -> 1, [0x180, 0x280) -> 3, [0x280, 0x300) -> 2
2774 map.AddRange(ToAddress(0x180), 0x100, 3U);
2775 CHECK_EQ(1, map.GetTraceNodeId(ToAddress(0x17F)));
2776 CHECK_EQ(2, map.GetTraceNodeId(ToAddress(0x280)));
2777 CHECK_EQ(3, map.GetTraceNodeId(ToAddress(0x180)));
2778 CHECK_EQ(3, static_cast<int>(map.size()));
2780 // [0x100, 0x180) -> 1, [0x180, 0x280) -> 3, [0x280, 0x300) -> 2,
2781 // [0x400, 0x500) -> 4
2782 map.AddRange(ToAddress(0x400), 0x100, 4U);
2783 CHECK_EQ(1, map.GetTraceNodeId(ToAddress(0x17F)));
2784 CHECK_EQ(2, map.GetTraceNodeId(ToAddress(0x280)));
2785 CHECK_EQ(3, map.GetTraceNodeId(ToAddress(0x180)));
2786 CHECK_EQ(4, map.GetTraceNodeId(ToAddress(0x450)));
2787 CHECK_EQ(0, map.GetTraceNodeId(ToAddress(0x500)));
2788 CHECK_EQ(0, map.GetTraceNodeId(ToAddress(0x350)));
2789 CHECK_EQ(4, static_cast<int>(map.size()));
2791 // [0x100, 0x180) -> 1, [0x180, 0x200) -> 3, [0x200, 0x600) -> 5
2792 map.AddRange(ToAddress(0x200), 0x400, 5U);
2793 CHECK_EQ(5, map.GetTraceNodeId(ToAddress(0x200)));
2794 CHECK_EQ(5, map.GetTraceNodeId(ToAddress(0x400)));
2795 CHECK_EQ(3, static_cast<int>(map.size()));
2797 // [0x100, 0x180) -> 1, [0x180, 0x200) -> 7, [0x200, 0x600) ->5
2798 map.AddRange(ToAddress(0x180), 0x80, 6U);
2799 map.AddRange(ToAddress(0x180), 0x80, 7U);
2800 CHECK_EQ(7, map.GetTraceNodeId(ToAddress(0x180)));
2801 CHECK_EQ(5, map.GetTraceNodeId(ToAddress(0x200)));
2802 CHECK_EQ(3, static_cast<int>(map.size()));
2805 CHECK_EQ(0, static_cast<int>(map.size()));
2806 CHECK_EQ(0, map.GetTraceNodeId(ToAddress(0x400)));
2809 struct TestObjectInfo {
2810 std::vector<std::string> bu_call_stack_;
2812 unsigned number_of_objects_;
2815 struct TestFrameInfo {
2822 unsigned time_begin_;
2827 unsigned number_of_objects_;
2830 class XDKHPOutputChecker {
2832 // If info.number_of_objects_ is not eq 0, then it participates in the search
2833 // and we look for the record by 3 parameters. In other case we look for the
2834 // chunk by call stack and type id only
2835 bool checkObjectsExists(const TestObjectInfo& info, std::string chunk) {
2836 std::vector<Chunk> chunks = parseChunk(chunk);
2837 // look for the frame id, which correspond to the passed stack
2839 std::vector<unsigned> frames = findFrame(info.bu_call_stack_);
2840 unsigned type_id = types_[info.type_];
2841 for (size_t i = 0; i < chunks.size(); i++) {
2842 for (size_t j = 0; j < frames.size(); j++) {
2843 if (chunks[i].frame_id_ == frames[j] && chunks[i].type_id_ == type_id &&
2844 (info.number_of_objects_ ? chunks[i].number_of_objects_ ==
2845 info.number_of_objects_ : true)) {
2852 void parse(const char* symbols, const char* frames, const char* types) {
2853 std::string symbols_std_ = symbols;
2854 std::string frames_std_ = frames;
2855 std::string types_std_ = types;
2857 // parse symbols, don't care of line and column
2858 size_t s1_pos = 0, s2_pos = 0;
2860 std::string function_name;
2861 while (s2_pos != symbols_std_.npos) {
2862 // look for the \n symbol
2863 // format: symId, funcId, funcName, line, column
2864 s2_pos = symbols_std_.find("\n", s1_pos);
2865 if (s2_pos != symbols_std_.npos) {
2866 int sym_id_e = symbols_std_.find(",", s1_pos);
2867 std::string sym_id_s = symbols_std_.substr(s1_pos, sym_id_e - s1_pos);
2868 sym_id = atoi(sym_id_s.c_str());
2869 int func_id_e = symbols_std_.find(",", sym_id_e + 1);
2870 int finc_name_e = symbols_std_.find(",", func_id_e + 1);
2871 function_name = symbols_std_.substr(func_id_e + 1, finc_name_e -
2873 symbols_[function_name] = sym_id;
2874 s1_pos = s2_pos + 1;
2880 size_t s1_pos = 0, s2_pos = 0;
2882 std::string type_name;
2883 while (s2_pos != types_std_.npos) {
2884 // look for the \n symbol
2885 // format: typeId, typeName
2886 s2_pos = types_std_.find("\n", s1_pos);
2887 if (s2_pos != types_std_.npos) {
2888 int type_id_e = types_std_.find(",", s1_pos);
2889 std::string sym_id_s = types_std_.substr(s1_pos, type_id_e - s1_pos);
2890 type_id = atoi(sym_id_s.c_str());
2891 type_name = types_std_.substr(type_id_e + 1, s2_pos - type_id_e - 1);
2893 types_[type_name] = type_id;
2894 s1_pos = s2_pos + 1;
2900 size_t s1_pos = 0, s2_pos = 0;
2901 int frame_id, symbol_id, parent_id;
2902 while (s2_pos != frames_std_.npos) {
2903 // look for the \n symbol
2904 // format: frameId, symbolId, parentId
2905 s2_pos = frames_std_.find("\n", s1_pos);
2906 if (s2_pos != frames_std_.npos) {
2907 int frame_id_e = frames_std_.find(",", s1_pos);
2908 std::string frame_id_s = frames_std_.substr(s1_pos,
2909 frame_id_e - s1_pos);
2910 frame_id = atoi(frame_id_s.c_str());
2912 int symb_id_e = frames_std_.find(",", frame_id_e + 1);
2913 std::string symb_id_s = frames_std_.substr(frame_id_e + 1,
2914 symb_id_e - frame_id_e - 1);
2915 symbol_id = atoi(symb_id_s.c_str());
2917 int parent_id_e = frames_std_.find(",", symb_id_e + 1);
2918 std::string parent_id_s = frames_std_.substr(symb_id_e + 1,
2919 s2_pos - parent_id_e - 1);
2920 parent_id = atoi(parent_id_s.c_str());
2922 info.callsite_ = symbol_id;
2923 info.frame_id_ = frame_id;
2924 info.parent_ = parent_id;
2925 frames_.push_back(info);
2926 s1_pos = s2_pos + 1;
2932 std::vector<Chunk> parseChunk(const std::string& chunk_std) {
2933 std::vector<Chunk> chunks;
2936 size_t s1_pos = 0, s2_pos = 0;
2937 unsigned time_begin, time_end, frame_id, type_id, size, number_of_objects;
2939 while (s2_pos != chunk_std.npos) {
2940 // look for the \n symbol
2941 // format: frameId, symbolId, parentId
2942 s2_pos = chunk_std.find("\n", s1_pos);
2943 if (s2_pos != chunk_std.npos) {
2944 int c1_e = chunk_std.find(",", s1_pos);
2945 std::string c1_s = chunk_std.substr(s1_pos, c1_e - s1_pos);
2946 time_begin = atoi(c1_s.c_str());
2948 int c2_e = chunk_std.find(",", c1_e + 1);
2949 std::string c2_s = chunk_std.substr(c1_e + 1, c2_e - c1_e - 1);
2950 time_end = atoi(c2_s.c_str());
2952 int c3_e = chunk_std.find(",", c2_e + 1);
2953 std::string c3_s = chunk_std.substr(c2_e + 1, c3_e - c2_e - 1);
2954 frame_id = atoi(c3_s.c_str());
2956 int c4_e = chunk_std.find(",", c3_e + 1);
2957 std::string c4_s = chunk_std.substr(c3_e + 1, c4_e - c3_e - 1);
2958 type_id = atoi(c4_s.c_str());
2960 int c5_e = chunk_std.find(",", c4_e + 1);
2961 std::string c5_s = chunk_std.substr(c4_e + 1, c5_e - c4_e - 1);
2962 size = atoi(c5_s.c_str());
2964 int c6_e = chunk_std.find(",", c5_e + 1);
2965 std::string c6_s = chunk_std.substr(c5_e + 1, c6_e - c5_e - 1);
2966 number_of_objects = atoi(c6_s.c_str());
2969 chunk.frame_id_ = frame_id;
2970 chunk.number_of_objects_ = number_of_objects;
2972 chunk.time_begin_ = time_begin;
2973 chunk.time_end_ = time_end;
2974 chunk.type_id_ = type_id;
2975 chunks.push_back(chunk);
2976 s1_pos = s2_pos + 1;
2984 size_t getFrameIdx(unsigned frame_id) {
2985 for (size_t i = 0; i < frames_.size(); i++) {
2986 if (frames_[i].frame_id_ == frame_id) {
2993 std::vector<unsigned> findFrame(std::vector<std::string> bu_call_stack) {
2994 std::vector<unsigned> frames;
2996 std::map<std::string, unsigned>::const_iterator cit =
2997 symbols_.find(bu_call_stack[0]);
2998 if (cit != symbols_.end()) {
2999 // take the cit->second and look for it in the frames
3000 for (size_t j = 0; j < frames_.size(); j++) {
3001 if (frames_[j].callsite_ == cit->second) {
3002 bool good_frame = true;
3003 // check all other frames iterating by parents
3004 unsigned parent_frame = frames_[j].parent_;
3005 for (size_t i = 1; i < bu_call_stack.size() && good_frame; i++) {
3006 size_t idx = getFrameIdx(parent_frame);
3007 if (idx != (size_t)-1) {
3008 TestFrameInfo& parent = frames_[idx];
3009 std::map<std::string, unsigned>::const_iterator cit2 =
3010 symbols_.find(bu_call_stack[i]);
3011 if (cit2 != symbols_.end()) {
3012 if (cit2->second == parent.callsite_) {
3013 parent_frame = parent.parent_;
3025 frames.push_back(frames_[j].frame_id_);
3032 std::map<std::string, unsigned> symbols_;
3033 std::map<std::string, unsigned> types_;
3034 // no need to have fast version, it will not be many frames
3035 std::vector<TestFrameInfo> frames_;
3038 class TestStatsStreamXDK : public v8::OutputStream {
3040 explicit TestStatsStreamXDK(XDKHPOutputChecker* checker) :
3041 checker_(checker) {}
3042 virtual ~TestStatsStreamXDK() {}
3043 virtual WriteResult WriteAsciiChunk(char* buffer, int chars_written) {
3047 virtual WriteResult WriteHeapStatsChunk(v8::HeapStatsUpdate* data,
3052 virtual WriteResult WriteHeapXDKChunk(const char* symbols, int symbolsSize,
3053 const char* frames, int framesSize,
3054 const char* types, int typesSize,
3055 const char* chunks, int chunksSize,
3056 const char* retentions, int retentionSize) {
3057 checker_->parse(symbols, frames, types);
3061 void EndOfStream() {}
3063 std::string GetChunk() {
3068 XDKHPOutputChecker* checker_;
3073 TEST(HeapProfilerXDK) {
3074 XDKHPOutputChecker checker;
3076 v8::HandleScope scope(env2->GetIsolate());
3077 v8::HeapProfiler* heap_profiler = env2->GetIsolate()->GetHeapProfiler();
3078 TestStatsStreamXDK stream(&checker);
3079 heap_profiler->StartTrackingHeapObjectsXDK(8, false, true);
3081 // To have repeatable test we need to warm-up the heap and optimization v8
3082 // techniques (like inlining). So, we create 100 objects, not the only one
3084 "function A1() { this.string = 'This is a string';}\n"
3085 "function object2() {\n"
3086 " this.elem = [];\n"
3087 " this.third = [];\n"
3089 "var globalA2 = [];\n"
3090 "function allocFunction2() {\n"
3091 " globalA2.push(new object2());\n"
3093 "for (var i=0; i<100; i++) allocFunction2();\n");
3095 heap_profiler->GetHeapXDKStats(&stream);
3096 CompileRun("allocFunction2();\n");
3097 heap_profiler->GetHeapXDKStats(&stream);
3098 CompileRun("delete globalA2[99];\n");
3099 heap_profiler->GetHeapXDKStats(&stream);
3100 std::string chunk_deleted_globalA2_0_array = stream.GetChunk();
3101 v8::HeapEventXDK* event = heap_profiler->StopTrackingHeapObjectsXDK();
3103 // adding the latest info:
3104 checker.parse(event->getSymbols(), event->getFrames(), event->getTypes());
3106 // here should be 2 arrays and 1 object2
3107 TestObjectInfo info_deleted_globalA2_0_array;
3108 info_deleted_globalA2_0_array.bu_call_stack_.push_back("object2");
3109 info_deleted_globalA2_0_array.bu_call_stack_.push_back("allocFunction2");
3110 info_deleted_globalA2_0_array.type_ = "Array";
3111 info_deleted_globalA2_0_array.number_of_objects_ = 0;
3112 bool idg_arr_jad = checker.checkObjectsExists(
3113 info_deleted_globalA2_0_array, chunk_deleted_globalA2_0_array);
3115 TestObjectInfo info_deleted_globalA2_0;
3116 info_deleted_globalA2_0.bu_call_stack_.push_back("allocFunction2");
3117 info_deleted_globalA2_0.type_ = "object2";
3118 info_deleted_globalA2_0.number_of_objects_ = 1;
3119 bool idg_obj_jad = checker.checkObjectsExists(
3120 info_deleted_globalA2_0, chunk_deleted_globalA2_0_array);
3122 // here should be 2 arrays and 1 object2
3123 TestObjectInfo info_deleted_globalA2_1_array;
3124 info_deleted_globalA2_1_array.bu_call_stack_.push_back("object2");
3125 info_deleted_globalA2_1_array.bu_call_stack_.push_back("allocFunction2");
3126 info_deleted_globalA2_1_array.type_ = "Array";
3127 info_deleted_globalA2_1_array.number_of_objects_ = 2;
3128 bool idg_arr_end = checker.checkObjectsExists(
3129 info_deleted_globalA2_1_array, event->getChunks());
3131 TestObjectInfo info_deleted_globalA2_1;
3132 info_deleted_globalA2_1.bu_call_stack_.push_back("allocFunction2");
3133 info_deleted_globalA2_1.type_ = "object2";
3134 info_deleted_globalA2_1.number_of_objects_ = 1;
3135 bool idg_obj_end = checker.checkObjectsExists(
3136 info_deleted_globalA2_1, event->getChunks());
3137 // find objects anywhere
3138 CHECK_EQ(true, idg_obj_end || idg_obj_jad);
3139 CHECK_EQ(true, idg_arr_end || idg_arr_jad);
3143 TEST(HeapProfilerXDKRetentionStorage) {
3144 v8::internal::RefId parent;
3145 v8::internal::RefId rf11, rf12, rf13, rf21, rf22, rf23;
3146 v8::internal::RefSet set1, set2, set3;
3147 v8::internal::References refs;
3149 parent.stackId_ = 99;
3150 parent.classId_ = 99;
3152 rf11.stackId_ = 10; rf11.classId_ = 1; rf11.field_ = "one_";
3153 set1.references_.insert(rf11);
3154 rf12.stackId_ = 20; rf12.classId_ = 1; rf12.field_ = "two_";
3155 set1.references_.insert(rf12);
3156 rf13.stackId_ = 30; rf13.classId_ = 2; rf13.field_ = "three_";
3157 set1.references_.insert(rf13);
3158 refs.addReference(parent, set1, 0);
3160 rf21.stackId_ = 10; rf21.classId_ = 1; rf21.field_ = "eno_";
3161 set2.references_.insert(rf21);
3162 rf22.stackId_ = 15; rf22.classId_ = 1; rf22.field_ = "owt_";
3163 set2.references_.insert(rf22);
3164 rf23.stackId_ = 30; rf23.classId_ = 2; rf23.field_ = "eerht_";
3165 set2.references_.insert(rf23);
3166 refs.addReference(parent, set2, 0);
3168 set3.references_.insert(rf11);
3169 set3.references_.insert(rf12);
3170 set3.references_.insert(rf13);
3171 refs.addReference(parent, set3, 0);
3173 // there should be two records by set1 and one by set2
3174 std::string str = refs.serialize();
3177 str.find("99,99,1,0,2,10,1,one_,20,1,two_,30,2,three_") != str.npos &&
3178 str.find("99,99,1,0,1,10,1,eno_,15,1,owt_,30,2,eerht_") != str.npos);