Default Nice Level

B

The "nice" command in Linux is used to change the priority of a process. It allows users to adjust the CPU scheduling priority of a process so that the operating system schedules it with a lower or higher priority than other processes. This can be useful for running CPU-intensive tasks without affecting the performance of other processes.

By default, when a process is started using the "nice" command, it is assigned a nice value of 0. The nice value can range from -20 to +19, with a lower nice value indicating a higher priority. A process with a nice value of -20 is the highest priority, while a process with a nice value of +19 is the lowest priority.

If a user wants to run a process with a higher priority, they can use the "nice" command to set a lower nice value for the process. For example, to run a process with a nice value of -10, the user can use the command "nice -n -10 command" where "command" is the name of the process they want to run.

Similarly, if a user wants to run a process with a lower priority, they can use the "nice" command to set a higher nice value for the process. For example, to run a process with a nice value of +10, the user can use the command "nice -n +10 command".

In summary, the default nice level when a process is started using the "nice" command is 0.