Collect outdated branches background task taking too long

In my case it gets stuck and the computer enters into radiator mode with the fans at their highest, and taking into account that is a M2 mac where the fans are almost never audible it's a lot to say xD :(

@... 
Does your IDE get frozen/hangs or the performance drops - it behaves slower than usual? 
Could you please enable debug logging by adding the following lines to Help > Diagnostic Tools > Debug Log Settings..:

git4idea.commands.GitHandler
output.git4idea.commands.GitHandler
time.git4idea

restart IDE, reproduce the issue again and share your IDE logs (Help > Collect Logs and Diagnostic Data)?
You can upload the logs here: https://uploads.jetbrains.com, just provide the uploaded file ID. Thank you!

Mario Moreno 
Does your IDE UI freezes completely when the 'Collecting outdated branches' process starts?

Could you please also share your IDE debug logs according to instructions in the previous comment: https://intellij-support.jetbrains.com/hc/en-us/community/posts/26845053016466/comments/28582384652946. Thanks!

I actually have not noticed any hangs or performance drop.  Although lately, I have noticed my M1 mac fan has running and RubyMine CPU usage is very high (300%+). I never hear my M1 mac fan running outside of this issue.

I'll upload the logs the next time the background task runs and report back.

I will also add my company has a very large monolith that I do most of my RubyMine work in.

% git branch | wc -l
     16
% git branch -r | wc -l
  16913

upload id 2025_08_06_Qyn1KtLLAkAw7jrnzbW5rG

@... 
Thank you for the logs.

I have noticed my M1 mac fan has running and RubyMine CPU usage is very high (300%+).

Could you please also record a CPU snapshot while the CPU usage is high and share it? You can upload it to the same location: https://uploads.jetbrains.com, just provide the uploaded file ID. Thanks!

In my case it got fixed. I think it had something to do with the configuration that we had in CrowdStrike's Falcon software in my company. It seems that it was blocking the calls and PyCharm got stuck in a loop (just a guess).

Screenshot of CPU usage: 2025_08_11_22y277gwnzCgtGc6pGGzdE

After enabling CPU profiling: 2025_08_11_bPPKRcDMEVRxLwEm63kzw5

Actually, it might be this: 2025_08_11_29Ss52jwUcRFKwEJed6MhW

@... 
Thank you for the logs and the CPU snapshot.
Could you try to temporarily disable all downloaded/non-bundled plugins? Just to test if it will affect the behavior.
Also, please try to enable the following registry key: git.read.branches.from.disk.

To open the registry, press Shift two times (open Search Everywhere) > search for Registry.. > modify the needed key > Close > Restart IDE.

Disabling plugins seemed to do the trick.

I suspect GitToolbox is the offending plugin. I'll reach out to them.

Thanks for the update. You can try disabling downloaded plugins one by one to see which plugin causes the issue exactly. If you are not sure it is GitToolbox.