Let’s run the top command in the Linux machine to see what this looks like in practice. With the top (table of processes) command, we can get a list of current running processes in the system and resource utilization statistics in CPU and memory. Here we can see that the server has been up and running for four days there is one person using the server and the load average for the last 1, 5, and 15 minutes has been 0.29, 0.61, and 0.6, respectively. To see an example, let's run uptime on the Linux server: As its name suggests, uptime gives us the length of time the system has been running, along with further information, like the number of users or the load average value in the last 1, 5, and 15 minutes. We can use various tools to monitor load average, such as the uptime or top command lines. Load average gives us a picture of how the system will likely behave in the future. But while CPU percentage is an active measurement of system performance at the particular time, load average shows how system performance is evolving through different time ranges. People just getting started with system administration often confuse load average with CPU percentage. The load average can be high or low, depending on the number of cores your server has, how many CPUs are integrated into the system server, and the load average number itself. These values include the number of processes either waiting for or actively using in CPU. Load average represents the average load on a CPU during a specific time interval.
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