Closed Bug 1592271 Opened 3 years ago Closed 1 month ago

High idle CPU use on Linux (Solus) after latest (70.0) update

Categories

(Core :: Performance, defect, P3)

70 Branch
defect

Tracking

()

RESOLVED INCOMPLETE

People

(Reporter: kratti, Unassigned)

Details

Attachments

(1 file)

User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Firefox/68.0

Steps to reproduce:

Just open Firefox with some tabs open (old session) after a reboot.

Actual results:

CPU loads are at about a constant 15% while idle.

https://perfht.ml/2MWxak0

Expected results:

a browser shouldn't utilize that much CPU while idle? This did not happen before 70.0.

We are unable to see any significant CPU usage. We do see that there appears to be a large number of mouse input events and that might be related to one of the sites that you have loaded in a tab. Are you willing to let us know the tabs that you have open?

Also, would you be willing to let us know if you can see this behavior with a fresh profile with the same open tabs?

One final bit of information that would help: Another profile with the "Add custom threads by name" field (from the profiler UI) set to a single comma?

That information would really help! Thank you for taking the time to report these issues -- I hope that we can get to the bottom of it!

Will

Flags: needinfo?(kratti)
Priority: -- → P3
Severity: normal → S3

Clear a needinfo that is pending on an inactive user.

Inactive users most likely will not respond; if the missing information is essential and cannot be collected another way, the bug maybe should be closed as INCOMPLETE.

For more information, please visit auto_nag documentation.

Flags: needinfo?(kratti)
Status: UNCONFIRMED → RESOLVED
Closed: 1 month ago
Resolution: --- → INCOMPLETE
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