Translations:What is a scheduler?/1/en

What's a job?

On computers, we are most often familiar with graphical user interfaces (GUIs). There are windows, menus, buttons; we click here and there and the system responds. On our servers, the environment is different. To begin with, you control it by typing, not clicking. This is called a command line interface. Furthermore, a program you would like to run may not begin immediately, but may instead be put on a waiting list. When the necessary CPU cores are available it will begin, otherwise jobs would interfere with each other leading to performance loss.