This is proving to be really difficult to reproduce -- it's getting slower (but really slowly) on my spare PC. The memory use for gnome- shell is, essentially, static.
So: I sampled some perf data from the PC where it consistently happens and threw up a flame graph. It spends a bunch of time in 'clutter_actor_destroy' -> 'destroy_closure_array' -> 'handler_lookup'. This suggests to me that some extension or other is registering a handler for something multiple times, and not cleaning it up, which means it takes longer and longer to iterate through the list of handlers. I'm gonna have a rummage through the source code to see which function adds handlers, and then I'll attach a debugger to it to see if something's leaking registered handlers. -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1869568 Title: Unlock takes a long time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1869568/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
