Use cgroups instead of nice and renice to manage processes.
To list, read, and set kernel tunables.
sysctl -a
To make system tuning easier, use tuned
tuned is a systemd service that works with different profiles.
tuned-adm list shows current profiles.
Find process by name
pidof processname
pgrep processname
ps aux | grep 'firefox'
Show hierarchical relations between processes
ps -fax
Show all processes owned by armann
ps -fU armann
Shows a process tree for a specific process
ps -d --forest -C sshd
