Load average in Linux to determine server workload

Top command: Top



The display is as follows:



The three values after the load average are 1 minutes, 5 minutes, and 15 minutes of load. The data is checked for an active number of processes every 5 seconds and then calculated from that number. If this number is divided by the number of CPUs, the result is higher than 5, indicating that the system is overloaded.

Query CPU kernel number: Cat/proc/cpuinfo


Obviously, the top of the second picture shows the load average:185.87,149.43,489.26

You can see that within one minute 185.87/4 is far greater than 5, at this time the server has been overloaded, must be very slow. (The normal situation should be the same as the first picture of the load average:1.59,1.57,1.70)