This problem has been driving me nuts. It gets worse over time, suggesting a leak someplace. Other evidence for a leak, the unity-panel- service heap grows from 21MB on boot to 350MB or more after a few days of uptime.
I profiled the system several times using sysprof (see attached profile). The profiles consistently show that almost all time is spent in a pair of gobject methods (handlers_find() and handler_lookup()). The code in these methods traverses a linked list of 'handlers', suggesting that those lists are growing large. Some cursory poking around in gdb confirms that the lists being traversed are very large - at least tens of thousands of elements. I'm not yet sure why they are growing so big or what's in them. ** Attachment added: "unity-panel-service.sysprof" https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1199877/+attachment/3805880/+files/unity-panel-service.sysprof -- 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/1199877 Title: unity-panel-service pegs one of my CPUs at 100% Status in The Ubuntu Power Consumption Project: New Status in Unity: In Progress Status in “unity” package in Ubuntu: Triaged Bug description: Just going about my business on Ubuntu Raring amd64 on an x230 and I heard the fan kick into action. top showed me that unity-panel- service was consuming all the free cycles on one of my CPUs. I killed it before my machine overheated, so I didn't attach a debugger to see why it was totally pegging out a CPU. I'm not sure if this adds any context, but I was using a LibreOffice spreadsheet and I could not insert a table because the menu had lost it's mind, and then I observed the overly loaded CPU a very short while after that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu-power-consumption/+bug/1199877/+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
