Scrolling performance on is horrible on http://graphics.wsj.com/infectious-diseases-and-vaccines/

RESOLVED WORKSFORME

Status

()

RESOLVED WORKSFORME
4 years ago
3 years ago

People

(Reporter: dougt, Assigned: milan)

Tracking

Trunk
x86
Mac OS X
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: gfx-noted)

(Reporter)

Description

4 years ago
http://graphics.wsj.com/infectious-diseases-and-vaccines/


Scrolling this page results in a ton of jank.

Application Basics
------------------

Name: Firefox
Version: 36.0
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:36.0) Gecko/20100101 Firefox/36.0
Multiprocess Windows: 0/1



Graphics
--------

Device ID: 0x a2e
GPU Accelerated Windows: 1/1 OpenGL (OMTC)
Vendor ID: 0x8086
WebGL Renderer: Intel Inc. -- Intel Iris OpenGL Engine
windowLayerManagerRemote: true
AzureCanvasBackend: quartz
AzureContentBackend: quartz
AzureFallbackCanvasBackend: none
AzureSkiaAccelerated: 0
This is one example where switching to Skia makes things worse.  Marcus, I see you on the bug already, did this get better with the work you recently did on OS X?  In other words, was it even worse?
Whiteboard: gfx-noted
The work I did on OS X hasn't landed yet (bug 1123019), but it does make scrolling on this page a lot better!
Depends on: 1123019
And it's probably the first patch in bug 1123019 that makes the difference, and since that touches shared code in DrawTargetTiled.cpp, it will probably also help Skia.
Confirming that turning off tiling does improve the performance, so it makes sense that bug 1123019 would make a difference.
This works for me now, Doug, are you still seeing the problem?
Status: NEW → RESOLVED
Last Resolved: 3 years ago
Resolution: --- → WORKSFORME
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