10686 - [DOGFOOD] Dialog performance

Status: VERIFIED FIXED

(Core :: XUL, defect, P3)

Description

[buster]

Dialog performance is unacceptably poor:
1) Dialogs take a long time to come up.
2) Dialogs don't come up any faster the second time. We are not caching dialogs,
and maybe we should.  The idea is once a user has used a dialog once, they are
fairly likely to want to use it again.  It would be great to recycle dialog
instances, rather than recreate it from scratch each time.

Comment 1

[Charles Manske]

I don't think there's much the editor team can do about this!
It's an XPFE issue.

Comment 2

[leger]

Putting on [Perf] radar.

Comment 3

[Dan M]

We're considering caching style sheets, which should help a great deal.  We're also considering
actually using a profiler to see for certain.  This is an important problem, but one we can live with
for a few milestones.

Comment 4

[leger]

Putting on PDT+ radar

Comment 5

[Peter Trudelle]

mass-moving most m11 bugs to m12

Comment 6

[Dan M]

waterson and hyatt have been cranking on this, among other things, for several moons now.
I think they've taken it about as far as it'll go. Are we done yet?

Comment 7

[sujay]

verified in 11/29 build.

Comment 8

[Pulsebot]

Pushed by ffxbld-merge:
https://hg.mozilla.org/releases/mozilla-beta/rev/cdcb088de3d5
[fenix] For https://github.com/mozilla-mobile/fenix/issues/10686 - Use the AC custom behavior for both the top and bottom toolbars