Writing classes very slow in 2020.3.2 compared to 2020.3.1


I am on Mac OS Catalina (10.15.7 (19H114)).

I notice mostly when running tests, IDE tries to compile, write classes, etc. It seems to 'hang' on the "writing classes" part. Most of the time (90% >) the IDE responds fine (so no UI is blocking?). Sometimes it does block UI (I get the OS spinning wheel).

There is no feedback on to why/where it hangs.

Rolling back to 2020.3.1 seems to have resolved it (for now).

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Hi Stefan,

Does it help if you temporarily disable all downloaded plugins under Preferences | Plugins > Installed and restart the IDE?

Please also provide the log folder (Help | Collect Logs and Diagnostic Data) and a CPU snapshot of a bit of working with freezes after restarting. You can upload the data privately to https://uploads.jetbrains.com/

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I'm upgraded to IntelliJ IDEA 2020.3.3 Ultimate, I found the same problem.

My laptop is a MacBook Pro 16-inch, 2019 Intel Corei9 2.3GHz RAM 32GB, macOS Big Sur 11.2.3

After I upgrade It runs very very slowly.

I cannot be coding, I have rolled back to version 2020.3.1

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Rookie Dev Please try beta version of IntelliJ IDEA. There are several related fixes inside. 

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I also noticed that the lag before updating code validation became significanlty longer in 2020.3.3 in comparison to 2020.3.2. I have to make ~3-second pause in typing to see the results of code validation (colorising, inspections, etc). The system specification is Intel Core i7-1165G7 @2.8GHz, 16 MB of memory, SSD, Windows 10 Home.

That seems as not a purely performance issue. The system does not re-index until I have stopped typing. The indexation blocks the UI for a while so even the text cursor stops blinking.

This is absolutely not comfortable.

Switching to EPA did not fully solve the issue, however it seem more responsive.

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Zherebjatjew please share logs folder and CPU snapshot of the beta version at https://youtrack.jetbrains.com/newIssue?project=IDEA

Steps to reproduce would also be appreciated. 


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