1. Go to http://sysnetik.com/labs/dna-model/ 2. Right click canvas -> Inspect element 3. Click the canvas element in the inspector to open it Really slow to toggle on/off, high cpu usage Diagnosis from pfeldman@: "The problem here is that canvas element is getting the width property set continuously (to 260 in my case). It propagates into the front-end as attribute modification. It does boost the CPU usage on the scene from 25% to 90% on my box. We should not send attribute modified signal to the front-end in case the value has not changed." Upstreaming http://code.google.com/p/chromium/issues/detail?id=112630
Created attachment 127811 [details] Patch
Committed r108235: <http://trac.webkit.org/changeset/108235>