Killed 
/user.slice/user-1000.slice/user@1000.service/session.slice/org.gnome.Shell@wayland.service
>Is there a command to list the current memory usage for each cgroup?

Yes, either in sysfs or you can use systemd-cgls -m, and you can pass
a path to eliminate extraneous processes and reveal more detail

$ systemd-cgtop -m /user.slice/user-1000.slice/user@1000.service/app.slice

Or
$ cd 
/sys/fs/cgroup/user.slice/user-1000.slice/user@1000.service/app.slice/app-cgroupify.slice
$ grep -R . cgroupify@app-gnome-firefox-2532.scope.service/

We're expecting to get more detailed logging information in the next
version of systemd slated for Fedora 35. But nevertheless what you're
describing could be a bug so I suggest filing one against systemd, and
ideally include the entire journal for this boot, e.g.
journalctl -b -o short-monotonic --no-hostname > journal.log
and attach it to the bug report. Or at least start 5 minutes of
logging before the unexpected behavior.

It is uresourced that includes the cgroupify utility that sticks
browser tabbed processes into their own cgroup. While uresourced is
enabled by default on Workstation, it's not on (yet) on other
desktops, but is considered safe to run. So if you're not using
Workstation edition you might want to install and enable uresourced,
which is itself intended to be temporary.


Chris Murphy
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