Proc series-/proc/loadavg

All values in this file are accumulated from the system startup to the current time. This file only provides information about all CPU sets, and cannot output information about each CPU.

[Root @ localhost ~] # Cat/proc/loadavg
4.61 4.36 4.15 9/84 5662

The meaning of each value is:
Parameter description
Lavg_1 (4.61) 1-minute average load
Lavg_5 (4.36) 5-minute average load
Lavg_15 (4.15) 15-minute average load
Nr_running (9) indicates the number of tasks running the queue at the sampling time, which is the same as procs_running of/proc/STAT.
Nr_threads (84) number of active tasks in the system at the sampling time (excluding the number of completed tasks)
The largest PID value of last_pid (5662), including lightweight processes, that is, threads.

Assume that there are two CPUs, the current number of tasks for each CPU is 4.61/2 = 2.31