All times are measured in seconds:
user: Amount of time that this process has been scheduled in user
system: Amount of time that this process has been scheduled in
childen_user: On Linux, amount of time that this process's
waited-for children have been scheduled in user mode.
children_system: On Linux, Amount of time that this process's
waited-for children have been scheduled in kernel mode.
Named real vector or length four:
children_system. The last two are
zombie_process() error for zombie processes.
Other process handle functions:
p <- ps_handle() p ps_cpu_times(p) proc.time()