[Webkit-unassigned] [Bug 186726] SymbolTable wastes 1.5MB of HashTable capacity on cnn.com

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=186726

--- Comment #2 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
As well as this one:

Wasted capacity: 1291168 bytes (used 579168 of 1870336 bytes, utilization: 30.97%) - 5382 allocations
1   0x116698ef5 WTF::HashTable<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, WTF::KeyValuePair<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, JSC::SymbolTableEntry>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, JSC::SymbolTableEntry> >, JSC::IdentifierRepHash, WTF::HashMap<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, JSC::SymbolTableEntry, JSC::IdentifierRepHash, WTF::HashTraits<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> > >, JSC::SymbolTableIndexHashTraits>::KeyValuePairTraits, WTF::HashTraits<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> > > >::HashTable()
2   0x116698ed5 WTF::HashMap<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, JSC::SymbolTableEntry, JSC::IdentifierRepHash, WTF::HashTraits<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> > >, JSC::SymbolTableIndexHashTraits>::HashMap()
3   0x11668fc05 WTF::HashMap<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, JSC::SymbolTableEntry, JSC::IdentifierRepHash, WTF::HashTraits<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> > >, JSC::SymbolTableIndexHashTraits>::HashMap()
4   0x11668fa6e JSC::SymbolTable::SymbolTable(JSC::VM&)
5   0x11668fc4d JSC::SymbolTable::SymbolTable(JSC::VM&)
6   0x11580d3a1 JSC::SymbolTable::create(JSC::VM&)
7   0x11580a7da JSC::BytecodeGenerator::BytecodeGenerator(JSC::VM&, JSC::FunctionNode*, JSC::UnlinkedFunctionCodeBlock*, JSC::DebuggerMode, JSC::VariableEnvironment const*)
8   0x1158116fd JSC::BytecodeGenerator::BytecodeGenerator(JSC::VM&, JSC::FunctionNode*, JSC::UnlinkedFunctionCodeBlock*, JSC::DebuggerMode, JSC::VariableEnvironment const*)

and 

Wasted capacity: 713440 bytes (used 580896 of 1294336 bytes, utilization: 44.88%) - 147 allocations
1   0x116698ef5 WTF::HashTable<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, WTF::KeyValuePair<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, JSC::SymbolTableEntry>, WTF::KeyValuePairKeyExtractor<WTF::KeyValuePair<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, JSC::SymbolTableEntry> >, JSC::IdentifierRepHash, WTF::HashMap<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, JSC::SymbolTableEntry, JSC::IdentifierRepHash, WTF::HashTraits<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> > >, JSC::SymbolTableIndexHashTraits>::KeyValuePairTraits, WTF::HashTraits<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> > > >::HashTable()
2   0x116698ed5 WTF::HashMap<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, JSC::SymbolTableEntry, JSC::IdentifierRepHash, WTF::HashTraits<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> > >, JSC::SymbolTableIndexHashTraits>::HashMap()
3   0x11668fc05 WTF::HashMap<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> >, JSC::SymbolTableEntry, JSC::IdentifierRepHash, WTF::HashTraits<WTF::RefPtr<WTF::UniquedStringImpl, WTF::DumbPtrTraits<WTF::UniquedStringImpl> > >, JSC::SymbolTableIndexHashTraits>::HashMap()
4   0x11668fa6e JSC::SymbolTable::SymbolTable(JSC::VM&)
5   0x11668fc4d JSC::SymbolTable::SymbolTable(JSC::VM&)
6   0x11580d3a1 JSC::SymbolTable::create(JSC::VM&)
7   0x11657c560 JSC::JSSegmentedVariableObject::finishCreation(JSC::VM&)
8   0x1165084f3 JSC::JSGlobalObject::finishCreation(JSC::VM&, JSC::JSObject*)

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