[DevTools Bug]: Excessive CPU Usage
Open
@hoxyq is already working on this.
Since Sep 11, 2026.
Component: Developer Tools
Status: Unconfirmed
Type: Bug
- Dominant language
- JavaScript
- Stars
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- Avg merge
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Description
Website or app
Happens even after all tabs are closed
Repro steps
I don't have clear repro steps yet. Occasionally I will notice that Chrome is using 170%-200% CPU. I close all my tabs, and it continues. Then I open the extensions management page and disable react devtools. This immediately fixes the problem. Re-enabling the extension does not re-engage the high cpu issue.
How often does this bug happen?
Sometimes
DevTools package (automated)
No response
DevTools version (automated)
No response
Error message (automated)
No response
Error call stack (automated)
No response
Error component stack (automated)
No response
GitHub query string (automated)
No response
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
This issue has not been assessed yet.