Open Bug 1426316 Opened 8 years ago Updated 3 years ago

20% CPU usage idling on linux64 firefox 59

Categories

(Core :: Layout, defect, P3)

Product:
Core
Component:
Layout
Type:
defect

Tracking

()

People

(Reporter: sfink, Unassigned)

Details

https://perfht.ml/2kokJ1B Lots of time in mozilla::layers::PLayerTransactionChild::SendInitReadLocks I have both tree style tabs and tab center redux installed. Neither is displayed in the side bar during this profile.
Priority: -- → P1
Priority: P1 → P3
Disappointing that after all the tremendous improvements in resource usage from Quantum that I found my cpu spiking after the 59 upgrade. I have a 5+ year old pentium dual core. One of the cores is almost constantly at 100%. Before the upgrade it idled at basically 0. Coincidentally I have various side tab extensions installed like the original poster. I have redux, vertigo tabs and Sea Containers. I only use Sea Containers. It might be interesting to uninstall those exts., but I downgraded to 58. If it would help I would reinstall 59 and do that.
manzanitalaceration: if you're ok sharing some data, 100% CPU usage ought to be easy to diagnose if you posted a profile from https://perf-html.io/ (requires installing an addon).
Severity: normal → S3
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