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The performance of Array::concat is critical of jQuery benchmark from http://www.dromaeo.com. Our current implementation in JavaScript is very generic and is several times slower than JSC and SpiderMonkey. Re-implement Array::concat in C++ to take advantage of underlying implementation details. This cuts dom-travesal-jquery execution time by half. We may want to move Array specific implementation into a separate source file, say jsarray.cc. Review URL: http://codereview.chromium.org/7990 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@625 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 |
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