Search Issue Tracker

Fixed in 2020.2

Fixed in 2019.3, 2020.1

Votes

3

Found in

2019.3

2019.3.8f1

2020.1

2020.2

Issue ID

1237323

Regression

No

Memory leak when Multithreading is enabled for Physics 2D

Physics2D

-

Reproduction steps:
1. Open the "Assets/InitScene" Scene in the attached "case_1237323_package_mods.zip" project
2. Ensure that Use Multithreading is enabled (Edit -> Project Settings -> Physics 2D -> Job Options (Experimental) -> Use Multithreading)
3. Enter Play Mode
4. Observe the Editor's memory usage in Task Manager/System Monitor/Profiler

Actual result: Gradual increase in memory usage when compared to entering Play Mode without using multithreading

Reproduces on: 2019.3.11f1, 2020.1.0b6, 2020.2.0a9
Could not test with: 2017.4.40f1, 2018.4.22f1 - (Unable to strip the project enough to be able to downgrade and to run without compilation errors)

Developer's Note:
- Reduce the number of "Visitors" being spawned in the park from 1000 as that takes a long time to spawn. I reduced it to 100-200 as this clearly demonstrates the leak. Do this by selecting "Park1 > VisitorSpawner" GameObject. In the "Visitor Spawner" script, change the "Max Population" field.

  1. Response avatar

    Resolution Note (fix version 2020.2):

    Fixed in: 2020.2.0a12

Comments (3)

  1. 7c4dbf6c6fd1b5adcf08151c0b69bb9e?d=mm

    snmatan

    Jun 14, 2020 01:07

    Still occurs on the 2019.4

  2. 215849400098192ab749b604eb50708f?d=mm

    luizb_unity

    Jun 04, 2020 13:11

    I'm checking this on Unity 2019.3.12f1 and it still happens.
    Am I wrong to assume this is fixed for 2019.3?
    Thanks

  3. 545272049df699fc7ddda26e3f3db06c?d=mm

    gr1ns1de

    May 01, 2020 22:33

    Can't train ml agents fully bcs of this issue - always out of memory occur. Fix it please.

Add comment

Log in to post comment

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.