ARM
Memory support in graphs
If you're on arm and graphs aren't showing up add the following to your cmdline.txt:
sudo nano /boot/cmdline.txt
Add at the end of line
cgroup_enable=cpuset cgroup_enable=memory cgroup_memory=1
Like this: console=serial0,124557 console=tty1 root=PARTUUID=xxxxxx rootfstype=ext4 fsck.repair=yes rootwait cgroup_enable=cpuset cgroup_enable=memory
Then, reboot:
sudo reboot