Issue 3476: Massive CPU/lag spikes in 0.3.154.3
http://code.google.com/p/chromium/issues/detail?id=3476
Comment #2 by [EMAIL PROTECTED]:
Debugged this on Peter's machine. When we scroll down the page with the
mousewheel
the plugins on the page receive geometry updates from webkit. While we
calculate the
geometry for the plugin, we also have code which attempts to calculate the
cutout
rects for prospective iframe shims. This is basically a loop which starts
from the
root, finds the plugin element and then attempts to find any iframe shims
higher in
the ZOrder. This loop keeps running over and over again leading to the CPU
spike.
I think we should assign this off to Thatcher for optimization.
Issue attribute updates:
Cc: [EMAIL PROTECTED]
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