Revision: 14356
Author: [email protected]
Date: Fri Apr 19 08:42:52 2013
Log: Remove heap snapshot size limit.
As long as frontend now stores snapshots in external arrays
it doesn't make sense to check the collected snapshot size on the
backend side. In other words if backend has managed to fit the
collected snapshot into its memory, it should also fit into the
frontend's memory.
[email protected]
BUG=chromium:232305
Review URL: https://codereview.chromium.org/14246029
http://code.google.com/p/v8/source/detail?r=14356
Modified:
/branches/bleeding_edge/src/heap-snapshot-generator.cc
/branches/bleeding_edge/src/heap-snapshot-generator.h
=======================================
--- /branches/bleeding_edge/src/heap-snapshot-generator.cc Tue Apr 16
09:37:04 2013
+++ /branches/bleeding_edge/src/heap-snapshot-generator.cc Fri Apr 19
08:42:52 2013
@@ -190,7 +190,6 @@
static const int kExpectedHeapEntrySize = 24;
static const int kExpectedHeapSnapshotsCollectionSize = 100;
static const int kExpectedHeapSnapshotSize = 132;
- static const size_t kMaxSerializableSnapshotRawSize = 256 * MB;
};
template <> struct SnapshotSizeConstants<8> {
@@ -198,8 +197,6 @@
static const int kExpectedHeapEntrySize = 32;
static const int kExpectedHeapSnapshotsCollectionSize = 152;
static const int kExpectedHeapSnapshotSize = 160;
- static const uint64_t kMaxSerializableSnapshotRawSize =
- static_cast<uint64_t>(6000) * MB;
};
} // namespace
@@ -2384,42 +2381,9 @@
void HeapSnapshotJSONSerializer::Serialize(v8::OutputStream* stream) {
ASSERT(writer_ == NULL);
writer_ = new OutputStreamWriter(stream);
-
- HeapSnapshot* original_snapshot = NULL;
- if (snapshot_->RawSnapshotSize() >=
-
SnapshotSizeConstants<kPointerSize>::kMaxSerializableSnapshotRawSize) {
- // The snapshot is too big. Serialize a fake snapshot.
- original_snapshot = snapshot_;
- snapshot_ = CreateFakeSnapshot();
- }
-
SerializeImpl();
-
delete writer_;
writer_ = NULL;
-
- if (original_snapshot != NULL) {
- delete snapshot_;
- snapshot_ = original_snapshot;
- }
-}
-
-
-HeapSnapshot* HeapSnapshotJSONSerializer::CreateFakeSnapshot() {
- HeapSnapshot* result = new HeapSnapshot(snapshot_->collection(),
- snapshot_->title(),
- snapshot_->uid());
- result->AddRootEntry();
- const char* text = snapshot_->collection()->names()->GetFormatted(
- "The snapshot is too big. "
- "Maximum snapshot size is %" V8_PTR_PREFIX "u MB. "
- "Actual snapshot size is %" V8_PTR_PREFIX "u MB.",
- SnapshotSizeConstants<kPointerSize>::kMaxSerializableSnapshotRawSize
/ MB,
- (snapshot_->RawSnapshotSize() + MB - 1) / MB);
- HeapEntry* message = result->AddEntry(HeapEntry::kString, text, 0, 4);
- result->root()->SetIndexedReference(HeapGraphEdge::kElement, 1, message);
- result->FillChildren();
- return result;
}
=======================================
--- /branches/bleeding_edge/src/heap-snapshot-generator.h Tue Apr 2
01:09:59 2013
+++ /branches/bleeding_edge/src/heap-snapshot-generator.h Fri Apr 19
08:42:52 2013
@@ -655,7 +655,6 @@
v8::internal::kZeroHashSeed);
}
- HeapSnapshot* CreateFakeSnapshot();
int GetStringId(const char* s);
int entry_index(HeapEntry* e) { return e->index() * kNodeFieldsCount; }
void SerializeEdge(HeapGraphEdge* edge, bool first_edge);
--
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