Open Bug 1744791 Opened 3 years ago Updated 1 year ago

Performance on miro.com isn't great

Categories

(Core :: Graphics: Canvas2D, defect, P4)

Product:
Core
Component:
Graphics: Canvas2D
Type:
defect

Tracking

()

People

(Reporter: jrmuizel, Unassigned)

References

(Blocks 1 open bug)

Details

Blocks: canvas-perf

Hmm, profile looks like lots of Skia drawing. I can't reproduce any bad performance on this simple template flowchart. Kelsey, would you please see if you can replicate?

Severity: -- → S4
Flags: needinfo?(jgilbert)
Priority: -- → P4

This was profiling zooming in and out of the gfx/media ideation board. Performance probably gets worse as things get more complicated.

Flags: needinfo?(jgilbert) → needinfo?(lsalzman)

I am not sure I see that much that is actionable in the reported profile. Some of the bigger overhead is just from PersistentBufferProviderShared having to copy the framebuffer for each frame which is known, followed next by rendering of SVG images causing a lot of large FillRects to happen to rasterize the SVGs to a surface. Whether or not this would be helped by a mixture of accelerated canvas work and Nical's SVG work is debatable.

Depends on: slow-canvas2d-software
Flags: needinfo?(lsalzman)
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