niceness_value Verified current stable Not installed? System Operations

Niceness Value / Launch Program With Lowered Priority

Launch Program With Lowered Priority

Launches a program at a specified lower niceness value to reduce CPU priority.

$
Terminal
nice -<niceness_value> <command>

When To Use

When expecting high CPU usage from other processes and needing resource allocation for time-sensitive tasks.

Pro Tip

Setting a niceness value of more than 10 may adversely affect responsiveness. Monitor closely.

Anatomy of Output

Understanding the result

Launching command: /usr/bin/some_program at niceness -5 Launch Command

Indicates the specific command and niceness setting.

Process ID: 5678 PID

Identifies the process after it has launched.

Adjustment Complete: New niceness -5 Adjustment Confirmation

Shows the adjusted value post-launch.

Power User Variants

Optimized versions

niceness_value nice -10 /path/to/program

Launch with a more significantly reduced priority.

niceness_value nice --19 /path/to/program

Maximize niceness to minimize CPU consumption.

Troubleshooting

Common pitfalls

Error: Invalid niceness value above 19.

Solution: Ensure niceness value is within the acceptable range of -20 to 19.

Error: Program not found.

Solution: Verify the executable path for the launched program.

Error: Insufficient permissions for niceness adjustment.

Solution: Run the command with `sudo` if needed.

Command Breakdown

What each part is doing

nice
Base Command
The executable that performs this operation. Here it runs Niceness Value before the shell applies any redirect operators.
<niceness_value>
niceness value
The value supplied for niceness value.
<command>
command
The value supplied for command.
-<niceness_value>
Command Option
Tool-specific option used by this command invocation.

Alternative Approaches

Comparable commands in other tools

Alternative system operations tools for the same job.