What do the numbers in /proc/loadavg mean on Linux?

Question

When issuing this command on Linux:

# cat /proc/loadavg 0.75 0.35 0.25 1/25 1747 

The first three numbers are load averages. What are the last 2 numbers?

The last one keeps increasing by 2 every second, should I be worried?

Answer 1

/proc/loadavg

The first three fields in this file are load average figures giving the number of jobs in the run queue (state R) or waiting for disk I/O (state D) averaged over 1, 5, and 15 minutes. They are the same as the load average numbers given by uptime(1) and other programs.

The fourth field consists of two numbers separated by a slash (/). The first of these is the number of currently executing kernel scheduling entities (processes, threads); this will be less than or equal to the number of CPUs. The value after the slash is the number of kernel scheduling entities that currently exist on the system.

The fifth field is the PID of the process that was most recently created on the system.