1888338 - Use a single SharedContextWebgl

Status: RESOLVED FIXED

(Core :: Graphics: Canvas2D, enhancement)

Comment 1

[Lee Salzman [:lsalzman]]

Attachment: Bug 1888338 - Use a single SharedContextWebgl. r?aosmond

This shares a global SharedContextWebgl among all instances of CanvasTranslator.
The goal is that regardless of how many windows are open, we only have to pay the
startup costs and shader compilation times for SharedContextWebgl once. In the
event that all CanvasTranslators are gone, the SharedContextWebgl is kept around
while its internal caches and textures are discarded to avoid significant memory
usage when no canvases are in use, while at the same time saving on startup
costs the next time a first live CanvasTranslator is created.

Comment 2

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/642ca0844931
Use a single SharedContextWebgl. r=aosmond

Comment 3

[Natalia Csoregi [:nataliaCs]]

https://hg.mozilla.org/mozilla-central/rev/642ca0844931

Comment 4

[Andra Esanu (needinfo me)]

(In reply to Pulsebot from comment #2)

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/642ca0844931
Use a single SharedContextWebgl. r=aosmond

== Change summary for alert #42147 (as of Fri, 05 Apr 2024 04:15:14 GMT) ==

Improvements:

Ratio	Test	Platform	Options	Absolute values (old vs new)	Performance Profiles
19%	reddit-billgates-ama.billg-ama ContentfulSpeedIndex	macosx1015-64-shippable-qr	cold fission webrender	803.78 -> 652.40	Before/After

For up to date results, see: https://treeherder.mozilla.org/perfherder/alerts?id=42147