729653 - MAPLE: BeginDrawing takes > 8 ms

Status: RESOLVED DUPLICATE of bug 731603

(Core :: Graphics, defect, P1)

Description

[Benoit Girard (:BenWa)]

We're spending too much in BeginDrawing, in some case as much time as we spend drawing. We need to get this call in the sub millisecond range.

Comment 1

[Jeff Muizelaar [:jrmuizel]]

(In reply to Benoit Girard (:BenWa) from comment #0)
> We're spending too much in BeginDrawing, in some case as much time as we
> spend drawing. We need to get this call in the sub millisecond range.

FWIW, we only spend a long time some of the time.

Comment 2

[Kartikaya Gupta (email:[e-mail])]

https://hg.mozilla.org/projects/maple/rev/ce31a3b140a2 removes the transaction lock from beginDrawing/endDrawing so this should be faster now.

Comment 3

[Benoit Girard (:BenWa)]

I don't think we should break for a specific performance problem is we think performance is good enough to land. Jeff already has a patch underway to address this.

Comment 4

[Benoit Girard (:BenWa)]

break=block landing*

Comment 5

[Joe Drew (not getting mail)]

We're pretty sure this is gone, and we'll reopen if necessary.

Comment 6

[Jeff Muizelaar [:jrmuizel]]

This is not yet finished.

Comment 7

[Kartikaya Gupta (email:[e-mail])]

Attachment: WIP

This WIP compiles (last time I checked) but doesn't run yet because the drawBackground() function in LayerRenderer.java calls rootLayer.getBounds which will need to be replaced with a display port coming in from the compositor.