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Fixed in 3.0.0-preview

Votes

4

Found in [Package]

2.0.0-preview

Issue ID

1216840

Regression

No

[Device Simulator] Slow Editor performance in Play Mode when Device Simulator and Timeline windows are open

Package: Device Simulator

-

How to reproduce:
1. Open the user's attached project ("Debug UI Perf.zip")
2. Open the repro scene ("perfIssue")
3. Enter Play Mode
4. Open the Device Simulator window
5. Open the Timeline window
6. Select the "Timeline" object in the Hierarchy

Expected results: Editor's performance remains the same
Actual results: Editor's performance drastically decreases

Reproducible with: 2019.3.1f1, 2020.1.0a23
Couldn't test up to 2019.3 (Package is not supported)
Reproducible with package versions: 2.0.0-preview
Couldn't test with older package version because of package errors after downgrade

Note: Issue does not reproduce when there is no active timeline being played in the timeline window

  1. Resolution Note (fix version 3.0.0-preview):

    Fixed in Device Simulator 3.0.0-preview (verified in 2019.4.27f1 (23dc10685eb4))

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Comments (3)

  1. renanliberato1

    Jul 26, 2022 22:31

    I'm still noticing a huge performance drop in Device Simulator 3.0.3-preview, Unity 2019.4.28f1. Any change of getting another look on this?

  2. smokeelow

    Aug 30, 2020 19:54

    Same here

  3. Froghuto

    Apr 22, 2020 07:52

    When interacting with the timeline window (for example dropping
    the play head indicator around) the drop in performance is easily
    noticeable on my system. Using the rofiler with Deep Profile gives the
    following: https://i.imgur.com/qzcXOE9.png

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