Introduction to Uptime command usage in Linux

Uptime command usage is very simple: enter uptime directly.
There is also a parameter-V, which is used to query the version. (Note that the letter is uppercase V)
[Linux @ localhost]$ Uptime–v
Procps version 3.2.7
[Linux @ localhost]$ uptime
Display results as:
10:19:04 up 257 days, 18:56, users, load average:2.10, 2.10,2.09
Display Content Description:
10:19:04//System Current time
Up to 257 days, 18:56//host has run time, the greater the time, indicating that your machine more stable.
Number of users//connections, which is the total number of connections instead of the number of users
Load average//System average load, statistic last 1, 5, 15 min system load
So what is the system average load? The system average load refers to the average number of processes running in a queue at a specific time interval.
If the current number of active processes per CPU kernel is not greater than 3, then the performance of the system is good. If the number of tasks per CPU kernel is greater than 5, then this machine has a serious performance problem.