Bug Tracker

Opened 15 years ago

Closed 15 years ago

Last modified 14 years ago

#1802 closed bug (fixed)

"mousemove" consumes lots of CPU time in Firefox

Reported by: aza Owned by:
Priority: major Milestone: 1.2.4
Component: event Version: 1.2.1
Keywords: Cc:
Blocked by: Blocking:


Go to the the following page: http://docs.jquery.com/Tutorials:Mouse_Position

It has a global "mousemove" event. Move the mouse back and forth on the page while watching the CPU consumption of Firefox -- it will shoot up to near 100% consumption. This behavior occurs on any page that "mousemove" is used. The same page in Safari or IE does not exhibit the unwanted behavior.

At least on my system, this causes the mouse to jump around and the browser to stop being responsive.

I am using Firefox

Change History (4)

comment:1 Changed 15 years ago by Bradley

Priority: criticalmajor

I am only seeing 10-15% cpu usage in FF when moving the mouse. Intel C2D 2.16

Can anyone else verify the issue? This seems minor at best to me, but could be affecting slower systems. Need additional review.

comment:2 Changed 15 years ago by brandon

#1871 is related to this

comment:3 Changed 15 years ago by brandon

Resolution: fixed
Status: newclosed

This should be addressed in Rev. [5344].

comment:4 Changed 15 years ago by flesler

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