Comment #12 on issue 1114 by [email protected]: Typed arrays much slower than regular arrays
http://code.google.com/p/v8/issues/detail?id=1114
Yes, this is not directly related to typed arrays. The reason for the slowdown is most likely a change in jsperf's harness plus a bug in V8 optimizer exhibited because of that. It caused it to stop optimizing the hot function after some number of iterations. It is related to issue v8:1902. I'm working on a fix for that.
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