NEW 87466
[Forms] Rendering of select/optgroup/option is slow 
https://bugs.webkit.org/show_bug.cgi?id=87466
Summary [Forms] Rendering of select/optgroup/option is slow
yosin
Reported 2012-05-25 00:05:25 PDT
Imported from http://crbug.com/129334 When select elements contain lot of optgroup and option, rendering of these are slow.
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Alexey Proskuryakov
Comment 1 2012-05-25 10:44:04 PDT
Duplicate of bug 43808?
yosin
Comment 2 2012-05-27 21:18:54 PDT
(In reply to comment #1) > Duplicate of bug 43808? Thanks Alexey for information. I marked that bug as resolved. This issue is happened when we use optgroup and option elements. Here is some performance test results: (appendChild 3000 options) 1. optgroup and one option, e.g. <optgorup label="1"><option value="1">one</option></optgroup> 124ms 2 optgroup and ten option, e.g. <optgorup label="1"><option>... 10 options 410ms ** too slow ** 3.optgroup only 35ms 4. option 139ms
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