This can be helpful for identifying which processes are using the most CPU and determining if there is anything that can be done to reduce the load. It gives you a quick overview of how much CPU each process is using. The top command is a great tool to monitor CPU usage in Linux. To exit the top command, press the q key. You will see the CPU usage, memory usage, load average, and a list of the processes that are currently running. Simply type “top” at the command prompt and press enter.
The best way to check cpu usage in Linux is using top command.
Type mpstat -P ALL and press Enter to see more information about each individual CPU core.Ĭheck CPU usage with top command in Linux. Type vmstat and press Enter to see more information about CPU usage. Type top and press Enter to see all the running processes and their CPU usage. Linux is a multitasking OS, which divides the time of each CPU into very short time slices, and then allocates them to each task in turn through the scheduler, thus creating the illusion of multitasking running at the same time. Understanding CPU usage in LinuxĬPU usage is a statistic of CPU usage per unit time, displayed as a percentage. Today we will learn how to use top and sar command to check cpu usage and what us sy ni wa hi st means. Type P to see per program statistics: PAUSED 
Has suggestions for utilities that also do CPU in addition to memory:
Sum the memory usages of all the processes of a program
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