I've hit this a few times and was never ever to find anything useful. However, this time I think I know what triggered the load. I manually installed d-feet with apt, and within a couple minutes removed it with apt. My laptop load spiked and stayed that way until I killed the process over 2 hours later. While debugging it, the only thing that stood out was this log message:
Sep 7 15:02:22 mucho gnome-software[5113]: failed to rescan: Failed to parse /usr/share/applications/d-feet.desktop file: cannot process file of type application/x-desktop I heard the fan spin up less than a minute after I removed d-feet. Maybe something was queued to scan that desktop file and it was gone by the time it was ready to scan it? I briefly used strace on the process and it just looked like a bunch of waits, nothing that looked interesting. I left it in this state for over 2 hours to see if it would ever recover, but it didn't and I ultimately killed the gnome- software process. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-software in Ubuntu. https://bugs.launchpad.net/bugs/1711178 Title: Gnome Software consumes way too much CPU resources at times Status in gnome-software package in Ubuntu: Confirmed Bug description: I've noticed my Kaby Lake i7 laptop with 16GB RAM become extremely slow at time even when not performing any CPU intensive tasks. I've tried to find out the culprit process and it turned out to be Gnome Software. It was consuming 99% of CPU. I remember having clicking "update all" in Gnome Software some time ago and also "check for updates" in control center's details section some time after that. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-software/+bug/1711178/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp

