function::task_prio - Linux
Overview
function::task_prio is a Linux command used to manipulate the priority of system tasks. It allows users to specify the priority level of specific tasks, ensuring that critical or time-sensitive tasks are handled promptly.
Syntax
function::task_prio <command> [options] <pid> <prio>
Options/Flags
- -a: Apply the priority change to all threads within a task.
Examples
- Set the priority of task with PID 1234 to high:
function::task_prio set 1234 5
- Set the priority of all threads in task with PID 1234 to low:
function::task_prio set -a 1234 10
Common Issues
- Permission denied: Ensure you have sufficient privileges to modify task priorities (typically root or sudo).
- Invalid PID: Verify that the provided PID is valid and refers to an existing task.
- Priority out of range: Priority values must be between 1 (highest) and 140 (lowest).
Integration
function::task_prio can be used in conjunction with other Linux commands for advanced task management. For example:
- Prioritize a command: Execute a command with a specified priority:
sudo function::task_prio exec 5 /usr/bin/script
- Monitor task priorities: Use
ps -eo pri,pid,comm
to display the priority, PID, and command name of running tasks.
Related Commands
- nice: Adjust the nice value (scheduling priority) of a process.
- ps: Display information about running processes.
- top: Monitor system performance and view task priorities.