Systemd creates three "slices": system, user and machine. Daemons started by systemd go in system, user processes in user and virtual machines go in machine.
Each process is placed in a hierarchy so you end up with system-httpd which makes it easy to assign or limit resources based on the slice.
Redhat covers it extensively in their performance and tuning class.
Each process is placed in a hierarchy so you end up with system-httpd which makes it easy to assign or limit resources based on the slice.
Redhat covers it extensively in their performance and tuning class.