Open Bug 1924642 Opened 4 months ago Updated 2 months ago

Parent process and content processes sometimes consume lots of CPU (Tons of IPCOut — PContent::Msg_ScriptError)

Categories

(Core :: Performance, defect)

Product:
Core
Component:
Performance
Version:
Firefox 131
Type:
defect

Tracking

()

Status:
UNCONFIRMED
Project Flags:
Performance Impact pending-needinfo

People

(Reporter: Tom25519, Unassigned)

Details

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:131.0) Gecko/20100101 Firefox/131.0

Steps to reproduce:

Parent process and content processes sometimes consume lots of CPU, and webpage is nothing active.

Actual results:

I capture some profiles.
Parent process:
https://profiler.firefox.com/public/g19vv3y1xakvcwy131jzwt3e0g7ctha5v5xanvg
Contenr process:
https://profiler.firefox.com/public/gps2a7wsqecvgzxrbgdyd00ypp4txd6jd4mjajr

Expected results:

This bug shouldn't appear.

Summary: Parent process and content processes sometimes consume lots of CPU → Parent process and content processes sometimes consume lots of CPU (Tons of IPCOut — PContent::Msg_ScriptError)

This happens on parent process on latest nightly (135.0a1 20241218214439)
https://profiler.firefox.com/public/zek8agy2wc7avt6pyqx6kv0h8x2cm7xkjjsvk1r

So this appears to be a Microsoft site bug, what Microsoft site was open and what was loaded there? Are there any extensions active?

Performance Impact: --- → pending-needinfo
Flags: needinfo?(Tom25519)

(In reply to Bas Schouten (:bas.schouten) from comment #2)

So this appears to be a Microsoft site bug, what Microsoft site was open and what was loaded there? Are there any extensions active?

https://learn.microsoft.com/zh-cn/office/ltsc/2024/overview. The page has been complete loading. I install 30 extensions, but I doubt https://addons.mozilla.org/zh-CN/firefox/addon/relingo/ causing this problem.

Flags: needinfo?(Tom25519)
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