This bug describes a menu performance problem encountered in 13.04 when a browser is run with many hundreds of bookmarks.
An additional menu performance problem regarding multiple applications was introduced in Saucy Salamander and a fix for 13.10 has not yet been found. This new problem compounds the existing bookmark-related problem, and is tracked under bug #1199877. We prefer to keep separate bugs separate, rather than mix multiple (potentially) unrelated problems together into a single bug report, because it makes tracking them and their consequent fixes much easier. Less time spent on administrative issues means more time spent on actual bug fixes. It may turn out that both bugs have the same cause and software fix. We won't know until we fix one (or the other). Work is indeed ongoing. -- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/968533 Title: Alt-tab to Firefox sends Firefox to 100% CPU; unity-panel-service to 80% CPU and hud-service to 20-80% CPU Status in Unity: Confirmed Status in “unity” package in Ubuntu: Confirmed Bug description: I've been seeing UI hangs after switching tabs in Firefox, and switching from other applications to Firefox. It can take 3-8 seconds to change *tab*. During this time the CPU is maxed out; typical output from 'top' during this period shows 'hud- service' and 'unity-panel-service' combined using about the same CPU as Firefox itself: 100 10.4 26:07.73 firefox 53 0.6 6:14.86 hud-service 38 1.5 6:42.14 unity-panel-service I suspect that the change is causing a (an inefficient) re-index related to updated menu structures. (Eg. something like the history menu, although I can't see what it is as don't currently have a menu bar). To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/968533/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp
