Privilege level can be modified by the owner of the calling process. RCPRIV_BASIC is associated with a resource's soft limit.
Privilege level can be modified only by privileged (superuser) callers. RCPRIV_PRIVILEGED is associated with a resource's hard limit.
Privilege level remains fixed for the duration of the operating system instance.
Figure 5–2 shows the timeline for setting privilege levels for signals that are defined by the /etc/project file process.max-cpu-time resource control.