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cpu-resource-management-priority.md

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CPU Resource Management Priority

Company: RedHat | Difficulty: Easy

Scenario

During peak traffic hours, a background data-processing job that is started by user devops is consuming too much CPU and slowing down user-facing services. Stopping it isn't an option because it would interrupt ongoing workflows, but you need to limit its CPU usage temporarily.

Task

Reduce the process's priority to 10 while keeping it running.

Example

# Before (high priority process)

USER       PID %CPU %MEM    VSZ     RSS   TTY      STAT START   TIME COMMAND
devops    5432 85.3 12.4 2048576 256840   ?        RN   14:35   8:23 /usr/bin/data-processor --batch

# After (priority adjusted)

USER       PID %CPU %MEM    VSZ     RSS   TTY      STAT START   TIME COMMAND
devops    5432 45.2 12.4 2048576 256840   ?        RN   14:35   8:45 /usr/bin/data-processor --batch

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