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• Viewing Actual CPU Usage    

• Related Topics
• scio idp-cpu-utlization
• Troubleshooting High CPU Usage
• IDP Series Operating System Overview

Viewing Actual CPU Usage

Problem

Due to JNET driver polling behavior, the CPU usage displayed by the Linux top command always shows CPU usage at 100%. You cannot use the Linux top command to monitor CPU status. Instead, you can use the scio idp-cpu-utilization command to display actual CPU usage.

Note: Using the scio idp-cpu-utilization utility can cause CPU usage to spike. We, therefore, recommend you use scio idp-cpu-utilization only for debugging.

Note: The IDP device sends the results of scio idp-cpu-utilization command to SNMP traps (if configured). For IDP8200, which has multiple IDP engines, the result sent to the SNMP trap is an average.

Solution

To display actual CPU usage:

1. Log into the CLI as admin and enter su - to switch to root.
2. Use the following command to display CPU usage for the core running the IDP engine:
   
   

   [root@defaulthost admin]# scio idp-cpu-utilization

   Current actual cpu utilization: 0
   [root@defaulthost admin]#

   Specify the -c idp-engine option to display CPU usage for a particular core (0–5):

   
   

   [root@defaulthost admin]# scio -c 0 idp-cpu-utilization

   Current actual cpu utilization: 0
   [root@defaulthost admin]#