Open Bug 1257290 Opened 8 years ago Updated 2 years ago

(Partially?) Suppress the DisplayPort when checkerboarding

Categories

(Core :: Panning and Zooming, defect, P3)

Product:
Core
Component:
Panning and Zooming
Type:
defect

Tracking

()

People

(Reporter: BenWa, Unassigned)

References

(Blocks 1 open bug)

Details

(Keywords: perf, Whiteboard: [gfx-noted]) 

From experimenting on planet.mozilla.org there's a huge difference in paint time between painting the displayport and the viewport if you're rendering an entirely new area (no recycling). I believe the difference is between 15ms vs 100ms+.

When we're in the checkerboarding state from a quick scroll/fling most of the area that we paint is never shown to the screen anyways.

This might offer a large user visible win if done correctly.
Keywords: perf
Whiteboard: [gfx-noted]
Version: unspecified → Trunk
Severity: normal → S3
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