815620 - Bad drawing performance on canvas

Status: NEW

(Core :: Graphics: Canvas2D, defect)

Description

[Konstantin Tabere]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:17.0) Gecko/17.0 Firefox/17.0
Build ID: 20121119183901

Steps to reproduce:

Just open http://brzws4.bau.tu-dresden.de:8080/newcn/karten/dresden and try to move the map around a bit. Don't bother some PNG's don't load very fast. This is due to a network misconfiguration. I use KineticJS (http://kineticjs.com) for drawing some polygons and images on a HTML5 canvas.


Actual results:

You will see some lag, compared to Chrome or InternetExplorer. I can't immagine the bottlekneck is JavaScript here. The operating system is Windows 7 64 Bit. Newest driver installed. Hardware acceleration is on:

WebGL-Renderer: Google Inc. -- ANGLE (NVIDIA GeForce 405  ) -- OpenGL ES 2.0 (ANGLE 1.0.0.1242)
GPU-beschleunigte Fenster: 1/1 Direct3D 10
AzureCanvasBackend: direct2d
AzureFallbackCanvasBackend: cairo
AzureContentBackend: direct2d

If I turn off Hardware acceleration I barely notice any difference in speed. Firefox is simply not as smooth as Chrome or IE9.


Expected results:

Smooth drawing performance as in Chrome or IE9.

Comment 1

[Oleg Romashin (:romaxa)]

See same problem on linux