In the following examples we have used our Music directory which contains 3 subdirectories containing mp3’s. The du command is useful for this and works in a similar way to the df command we looked at earlier. This will display the output in a more organized format.Often we might simply want to check how much room a file or directory is using. To view the output in the single-column use the -s flag with the vmstat command. st: Time that was stolen from a virtual machine.CPU – This column shows the CPU time in percentage.cs: number of context switches per second.bo: Blocks sent to a device (blocks/s).bi: Blocks received from a device (blocks/s).The output is not in the human-readable format but gives the following information: This command will report on the processes, memory, paging, block IO, traps, disks, and CPU as shown in the image below: The third command that you can use is the vmstat command. However, make sure to use the keyword sudo with the pip command as it requires root privileges.Īs a result of execution, the output will show the memory usage in ascending order: Private + Shared = RAM used ProgramĨ.2 MiB + 42.4 MiB = 50.6 MiB systemd-journaldĥ5.8 MiB + 307.2 MiB = 363.0 MiB php-fpm7.4 (6)Ģ33.9 MiB + 234.0 MiB = 467.9 MiB redis-server Furthermore, you can also use the pip command to install the script directly.

The ps_mem is a Python script that shows per-program RAM usage. You can use it as a guide to run the ps_mem script. Previously, we have covered how to set up Python 3 in Linux systems. In addition, the free command is used with the -h flag to print out the information in a human-readable format.Īpart from the system commands and system files, you can also run a Python script to check the memory usage.

It shows the information about the total memory, as well as used and free memory. The first command you can use to check memory usage is the free command.

SWAP – Occupation percentage greater than 70% is critical.

RAM – Occupation percentage greater than 80% is critical.

Memory Performanceįor a system administrator, it is crucial to know about the critical occupation of memory. In this tutorial, we will take a deep dive into five different ways of checking memory usage in Linux. Furthermore, the commands work with several flags and give a brief or detailed overview of the memory as required by the Linux user. There are various tools available in Linux for this purpose, and these commands do not require expertise to use them. Determining memory usage is a skill every Linux user needs to keep a check on their systems.

Check ram utilization in linux