How can the amount of used system resources be determined?

The amount of used system resources can be determined using various tools and methods, depending on the operating system and objectives:

• Monitoring CPU, memory, disk, and network:

  • In Linux: commands top, htop, vmstat, iostat, free.
  • In Windows: Task Manager, Performance Monitor.

• Using specialized utilities:

  • nmon, glances for comprehensive monitoring.
  • sar for collecting statistics over a period.

• Software APIs and libraries:

  • In Java, you can use OperatingSystemMXBean to obtain information about CPU and memory load.

• Monitoring containers and cloud resources:

  • Using Prometheus, Grafana, CloudWatch, and other monitoring systems.

Example command to view CPU and memory load in Linux:

top

It shows current processes, their CPU and memory consumption, and overall system load.