Unity Issue Tracker - GC.Collect() to be called at regular intervals causing noticeable lag spikes when using Bolt asset

By Design

Fixed in 2018.3.X, 2019.1.X

Votes

Found in

Issue ID

Regression

GC.Collect() to be called at regular intervals causing noticeable lag spikes when using Bolt asset

-

Feb 22, 2019

How to reproduce:
1. Open the attached PeriodGcCollect2017.zip project
2. Enter the Play Mode
3. Go to Profiler window -> select Profiler Editor

Actual: Periodic CPU spikes appear (inspect users attached .png files)

Reproducible with: 2018.3.9f1, 2019.1.0b7, 2019.2.0a8

Resolution Note (2019.2.X):

This is not a bug introduced in 18.3. This is the profiler accurately displaying a spike that was already there but went unreported.

LazloBonin

May 02, 2019 18:44

Spoke too fast. The issue definitely isn't fixed in 2018.3.14f1.
LazloBonin

Apr 29, 2019 19:31

Bolt developer here. From early tests in 2018.3.14f1, it seems like the issue is indeed fixed.
PanthenEye

Apr 13, 2019 19:45

So here it says it's fixed but a QA person on fobugz says it's only improved but not fixed. So which one is it?

Image: https://support.ludiq.io/s/attachments/21929/5/1072/063a93eb1b5b0266f957d0b15f0a8439.png
Khash-Firestorm

Mar 24, 2019 23:53

Forced us to revert Unity from 19.1 to 18.2
Khash-Firestorm

Mar 24, 2019 23:52

Issue seems to be reproduced with PUN for us as well.