1594568 - Consider the performance of the new popup infrastructure, especially on reference hardware

Status: NEW

(DevTools :: Performance Tools (Profiler/Timeline), task, P3)

Description

[Greg Tatum [:gregtatum]]

Here is a profile I just took on the reference hardware of the "normal case" of opening the profiler popup as it is right now. The system was idling.

https://perfht.ml/2JYpsnn

Here is the old add-on opening:

https://perfht.ml/2NllDL3

Comment 1

[Greg Tatum [:gregtatum]]

Here is a profile with screenshots, several "warm" opens of the new interface, several "warm" opens of the old interface, with screenshots.

https://perfht.ml/2NNxReA

Comment 2

[Florian Quèze [:florian]]

https://perfht.ml/2MZUyNf is a profile of the new interface on the 2018 reference (the slower one).

Comment 3

[Florian Quèze [:florian]]

You asked on Slack for a profile with multiple loads. Here is one: https://perfht.ml/33J93Lo

And here is the same thing with the add-on: https://perfht.ml/374ftH8

Subjectively the add-on panel felt smooth, and with the new one it feels like I'm waiting for it to appear.