c7b2af37ba
r3995 (http://code.google.com/p/v8/source/detail?r=3995) introduce performance regression for the case when arrat size is small (think new Array(4)). It turns out that in those cases rep stos is slower than plain loop (apprently due to ecx increment, but I didn't check this hypothesis.) The next thing to try could be direct jump into right place of long sequence of stos'es. Review URL: http://codereview.chromium.org/2082006 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4664 ce2b1a6d-e550-0410-aec6-3dcde31c8c00 |
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