FM / serial-getty@ttyS0.service

/sys/fs/cgroup/system.slice/system-serial\x2dgetty.slice/serial-getty@ttyS0.service

Name	Mode	Actions
cgroup.controllers	0444	edit dl rm
cgroup.events	0444	edit dl rm
cgroup.freeze	0644	edit dl rm
cgroup.kill	0200	edit dl rm
cgroup.max.depth	0644	edit dl rm
cgroup.max.descendants	0644	edit dl rm
cgroup.pressure	0644	edit dl rm
cgroup.procs	0644	edit dl rm
cgroup.stat	0444	edit dl rm
cgroup.stat.local	0444	edit dl rm
cgroup.subtree_control	0644	edit dl rm
cgroup.threads	0644	edit dl rm
cgroup.type	0644	edit dl rm
cpu.pressure	0644	edit dl rm
cpu.stat	0444	edit dl rm
cpu.stat.local	0444	edit dl rm
io.pressure	0644	edit dl rm
memory.current	0444	edit dl rm
memory.events	0444	edit dl rm
memory.events.local	0444	edit dl rm
memory.high	0644	edit dl rm
memory.low	0644	edit dl rm
memory.max	0644	edit dl rm
memory.min	0644	edit dl rm
memory.numa_stat	0444	edit dl rm
memory.oom.group	0644	edit dl rm
memory.peak	0644	edit dl rm
memory.pressure	0644	edit dl rm
memory.reclaim	0200	edit dl rm
memory.stat	0444	edit dl rm
memory.swap.current	0444	edit dl rm
memory.swap.events	0444	edit dl rm
memory.swap.high	0644	edit dl rm
memory.swap.max	0644	edit dl rm
memory.swap.peak	0644	edit dl rm
memory.zswap.current	0444	edit dl rm
memory.zswap.max	0644	edit dl rm
memory.zswap.writeback	0644	edit dl rm
pids.current	0444	edit dl rm
pids.events	0444	edit dl rm
pids.events.local	0444	edit dl rm
pids.max	0644	edit dl rm
pids.peak	0444	edit dl rm

Edit: /sys/fs/cgroup/system.slice/system-serial\x2dgetty.slice/serial-getty@ttyS0.service/memory.pressure (0B)

some avg10=0.00 avg60=0.00 avg300=0.00 total=0 full avg10=0.00 avg60=0.00 avg300=0.00 total=0