9.99 KB, application/octet-stream
Created attachment 560112 [details] Offline page (.html and .css) showing slow table performance User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:7.0) Gecko/20100101 Firefox/7.0 Build ID: 20110908135051 Steps to reproduce: A particular page containing a table with lots of cells performs very poorly when hardware acceleration is enabled. Scrolling by one page takes on the order of 400ms. Other actions have a similar delay: opening it, switching tabs; and when resizing the window it updates ~twice per second. Without hardware acceleration there are no such delays, and it works fluidly. My "from the armchair" hunch would be the rounded corners used in this table. During these rendering 'glitches' firefox.exe doesn't show a considerable CPU usage. E.g. when resizing the window it averages about 30% of one CPU. (Hinting at graphics-memory delays or frequent locking??) Reproduced in Firefox 4 through to most recent 7-Beta. GRAPHICS (about:support): Adapter Description: NVIDIA GeForce GTX 260 Vendor ID: 10de Device ID: 05e2 Adapter RAM: 896 Adapter Drivers: nvd3dumx,nvwgf2umx,nvwgf2umx nvd3dum,nvwgf2um,nvwgf2umDriver Version: 188.8.131.5233 Driver Date: 5-20-2011 Direct2D Enabled: true DirectWrite Enabled: true (6.1.7601.17563) GPU Accelerated Windows: 2/2 Direct3D 10
Component -> Graphics
Component: General → Graphics
Closing as Dup. Sorry folks. I hadn't noticed the Combo box had reset from Graphics to General after restarting firefox (to get the correct about:support text). I've resubmitted to make sure it goes to the right people.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 7 years ago
Resolution: --- → DUPLICATE
Duplicate of bug: 686634
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