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Managing Processes in SUSE Linux Enterprise

In this hands-on lab, we will be looking at process management and how we can ensure some processes are given preference to run using process priority.

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Lab Info
Level
Beginner
Last updated
Sep 22, 2025
Duration
30m

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Table of Contents
  1. Challenge

    Determine if Docker Is Causing a Load Issue
    1. Verify that the Docker daemon is running:

      ps aux | grep dockerd
      

      Note the Docker PID.

    2. Check system load:

      top
      

      Exit using q.

    3. Stop the dockerd process:

      sudo -i kill -SIGSTOP <dockerd_PID>
      
    4. Check the load to see if there is a change:

      top
      

      Notice it indicates there is one stopped process. Exit using q.

    5. Restart the Docker daemon:

      sudo kill -i -SIGCONT <dockerd_PID>
      
  2. Challenge

    Check the Current Process Priority of the dockerd Process and if It Is Not 10, Set It to 10
    1. Get the current priority (niceness):

      ps axo ni,pid,comm | grep dockerd
      
    2. Set the Docker niceness to +10:

      sudo -i renice -n 10 <dockerd_PID>
      
    3. Verify the change:

      ps axo ni,pid,comm | grep dockerd
      
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