[Webkit-unassigned] [Bug 92800] page is repainting more than it should when adding a new (offscreen) table element

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=92800





--- Comment #14 from Eric Seidel <eric at webkit.org>  2012-07-31 17:22:19 PST ---
I believe this to cause at least 10% of total time spent in Dimitri's benchmark (which is supposed to mimimic what spreadsheets.google.com does):
https://github.com/dglazkov/performance-tests/blob/master/biggrid.html

In "progressive" mode, it adds one 50x25 cell table at a time.  Since that table is about the size of my window, this bug is causing the entire window to repaint every time a table is added.  Even though each of these tables beyond the first is completely offscreen. :(

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