Behavior still exists despite all of the recent TM landings on the Branch. 3.5b4pre Build 20090416044319 on XP SP3.
Still present in build 20100126052630 of Firefox 3.7a1pre. Move your mouse around the screen while this script is active causes Minefield to use 100% of 1 CPU core. Quit moving the mouse and CPU usage drops to zero. Moving to a more appropriate component.
Status: UNCONFIRMED → NEW
Component: General → Graphics
Ever confirmed: true
OS: Windows Vista → Windows 7
Product: Firefox → Core
QA Contact: general → thebes
Hardware: x86 → All
Version: unspecified → Trunk
I can't say I see a huge problem. I see high cpu only rarely and randomly, and it's very brief - about 1 sec. However, IE is 0% cpu Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.3a4pre) Gecko/20100406 Minefield/3.7a4pre
Severity: normal → minor
I can reproduce this behavior in 7.0, I'm not sure if this is a big bug, because it performs fine, but perhaps there's room for a reduction in CPU usage, I'm not sure this is spending time in graphics specifically though, it would need some profiling.
This behavior is still present in Firefox 16.0a1, it maxes out 1 core on my i7-920 while moving the mouse around the page.
Cleopatra Profile against Mozilla/5.0 (Windows NT 6.1; WOW64; rv:16.0) Gecko/16.0 Firefox/16.0 ID:20120701030537 with HWA (D2D + D3D10) http://people.mozilla.com/~bgirard/cleopatra/?report=AMIfv94JbX8r9hdjaCVmdFNZ4WtcgSxeSOwlf1G0wieb8naa8hPky9GT6Xf4JSHlWJsRvtssK-9lokzLlaA1ngiHaCFfwBblvkELjE6y8MzeqLYkHWbnCFtuGJsjmwIHaMFlyU1mWRFLWrXCeDSGSdQ0IB5o24nNBg without HWA http://people.mozilla.com/~bgirard/cleopatra/?report=AMIfv957i1bnq1Ytjmy4DsaBl-wFValBJThXnlBuSJTjYIxa_R5NUynC6HL3pc3qfK61EFOs8nV96JiH0WD3ebaUKHH9_1a6j75qSXs-imhya6uGEx3IDhUNFAf_2fZmJr4eUutMvoM_3TcBg_AQy6Kl6UwxSAvjSg
Even now, Firefox 29.0a1 still sees an increase in CPU usage from less than 1% w/o mouse movement to about 10%. Less than what it was before, but I'll leave it up to Bas to decide whether there is anymore room for improvement or if we just close this and move on to something else. ;)
(In reply to Brian Carpenter [:geeknik] from comment #7) > Even now, Firefox 29.0a1 still sees an increase in CPU usage from less than > 1% w/o mouse movement to about 10%. Less than what it was before, but I'll > leave it up to Bas to decide whether there is anymore room for improvement > or if we just close this and move on to something else. ;) I'd rather not close this just yet. I'd still like to understand it even though it's not a high priority.
Still seeing ~10% CPU usage w/ 51.0a1 (2016-09-17) (64-bit) and e10s enabled.
Per policy at https://wiki.mozilla.org/Bug_Triage/Projects/Bug_Handling/Bug_Husbandry#Inactive_Bugs. If this bug is not an enhancement request or a bug not present in a supported release of Firefox, then it may be reopened.
Status: NEW → RESOLVED
Last Resolved: 2 days ago
Resolution: --- → INACTIVE
You need to log in before you can comment on or make changes to this bug.