[Webkit-unassigned] [Bug 73853] Inserting nodes is slow due to Node::notifyNodeListsAttributeChanged (20%+)

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=73853





--- Comment #6 from Ryosuke Niwa <rniwa at webkit.org>  2011-12-06 12:07:40 PST ---
I took some statistics on what kind of node lists are used in wild (again, gmail, facebook, twitter, wordpress.com, etc...):

names: 3
0: 98.559%
4: 1.269%
2: 0.172%

classes: 3
0: 75.054%
1: 8.839%
2: 8.581%
10: 2.602%
200: 1.484%
4: 1.054%
6: 0.946%
100: 0.430%
3: 0.323%
9: 0.280%

labels: 3
0: 100.000%

childs: 3
0: 44.581%
10: 10.129%
2: 7.699%
1: 6.839%
4: 5.570%
30: 5.312%
20: 2.946%
3: 2.387%
300: 1.849%
6: 1.656%

tags: 3
4: 22.258%
0: 17.806%
10: 9.892%
6: 7.054%
20: 6.215%
40: 5.849%
30: 3.376%
7: 3.204%
3: 2.989%
5: 2.946%

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