[Webkit-unassigned] [Bug 89635] NodeRareaData should be directly referred from Node instead of using HashMap

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=89635


Ryosuke Niwa <rniwa at webkit.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ap at webkit.org,
                   |                            |eric at webkit.org,
                   |                            |kling at webkit.org,
                   |                            |sam at webkit.org




--- Comment #2 from Ryosuke Niwa <rniwa at webkit.org>  2012-06-20 23:00:30 PST ---
I'm supportive of this change. When I profiled some basic DOM APIs like appendChild, removeChild, etc... we were spending some significant amount of time 5-10% look up hash maps to look for nodeRareData() to obtain treeScope(). I suspect much of that will go away if we avoided the hash lookup for the rare node data.

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