We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Diagnose CPU consumption

  • 3 antwoorde
  • 1 het hierdie probleem
  • 9 views
  • Laaste antwoord deur McCoy

more options

Once in a while I see one of my CPU cores 100% utilized. Checking process list reveals Firefox. This state persists until I open the Firefox Task Manager. The CPU utilization instantly drops to few percent.

Any idea how I can diagnose what causes this CPU utilization?

Note: `perf` says the Web Content thread is 100% utilized. But the call stack gives no obvious hints about the reason.

Once in a while I see one of my CPU cores 100% utilized. Checking process list reveals Firefox. This state persists until I open the Firefox Task Manager. The CPU utilization instantly drops to few percent. Any idea how I can diagnose what causes this CPU utilization? Note: `perf` says the Web Content thread is 100% utilized. But the call stack gives no obvious hints about the reason.

Gewysig op deur wirch.eduard

Gekose oplossing

profiler.firefox.com did the trick. Thanks.

Lees dié antwoord in konteks 👍 0

All Replies (3)

more options

Hello wirch.eduard ,

Three things you could do :

I hope that gives you enough information (?)

more options

Gekose oplossing

profiler.firefox.com did the trick. Thanks.

more options

wirch.eduard said

profiler.firefox.com did the trick. .

Good for you to have found that !

Would you be so kind as to mark your own post as Chosen Solution, so others with the same question, will know where to look ?

It's the "Solved the problem" button to the right of your post.