Status: Accepted
Owner: erik.corry
Labels: Type-Bug Priority-Medium
New issue 1935 by erik.corry: WebGL benchmark (vertex_buffer_object_string)
is very sensitive to random hash seed
http://code.google.com/p/v8/issues/detail?id=1935
A factor of 4 performance difference is observed depending on the hash
seed. The seed of 1 is one of the good ones, the seed of 2 is one of the
bad ones.
Good profile:
5337 98.6% 98.6% LazyCompile: *draw
26 0.5% 0.5% LazyCompile: *PeriodicIterator.incr
4 0.1% 0.1% LazyCompile: ~draw
Bad profile:
1614 26.4% 26.4% LazyCompile: draw
1143 18.7% 18.7% Stub: KeyedLoadElementStub
879 14.4% 14.4% LazyCompile: *draw
795 13.0% 13.0% Stub: KeyedStoreElementStub
495 8.1% 8.1% Stub: BinaryOpStub_MUL_OverwriteRight_HeapNumbers
263 4.3% 4.3% Stub: BinaryOpStub_ADD_Alloc_HeapNumbers
247 4.0% 4.0% Stub: BinaryOpStub_ADD_OverwriteLeft_HeapNumbers
234 3.8% 3.8% Stub: UnaryOpStub_SUB_Alloc_HeapNumbers
178 2.9% 2.9% KeyedLoadIC: args_count: 0
102 1.7% 1.7% KeyedStoreIC: args_count: 0 {1}
8 0.1% 0.1% LazyCompile: ~draw
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