chrt

The chrt command line tool is a utility available in Linux systems. It stands for "change real-time scheduling attributes" and is used to modify the real-time scheduling policy and priority of a process. The chrt command allows administrators to control how the CPU is allocated to processes in order to optimize performance. It is mainly used in real-time applications where certain processes require deterministic execution and need to meet strict timing constraints. The chrt command provides various options to set scheduling policies, such as FIFO (first in, first out) and RR (round-robin). It allows you to specify the priority level, where a lower value indicates a higher priority for the process. The command can be used either with a PID (process ID) or a command name to modify the scheduling attributes. Additionally, chrt can be used without any options to display the current scheduling attributes of a process or check if the real-time scheduler is available in the system. chrt is often used in combination with other tools to fine-tune the performance of real-time applications in Linux environments.