Skip to main content
NetApp Stage KB

Why does AWS show 100 percent cpu utilization on the Cloud Volumes ONTAP instance?

Views:
Visibility:
Public
Votes:
0
Category:
cloud-volumes-ontap-cvo
Specialty:
CLOUD
Last Updated:

Applies to

  • Cloud Volumes ONTAP
  • Amazon Web Services (AWS)

Answer

  • The 100% CPU utilization as viewed from AWS is expected.
  • In virtual environments, ONTAP keeps the vCPUs in an always-ready state to improve the performance of the system.
  • ONTAP does not perform the halt CPU instruction when idle and this makes the idle thread appear to be hot on a vCPU.
  • From the AWS perspective, this will be viewed as 100% CPU utilization.
  • In comparison, you can see the actual CPU utilization from the ONTAP perspective via the sysstat (or statistics show) command from the ONTAP CLI.

Additional Information

 

 

NetApp provides no representations or warranties regarding the accuracy or reliability or serviceability of any information or recommendations provided in this publication or with respect to any results that may be obtained by the use of the information or observance of any recommendations provided herein. The information in this document is distributed AS IS and the use of this information or the implementation of any recommendations or techniques herein is a customer's responsibility and depends on the customer's ability to evaluate and integrate them into the customer's operational environment. This document and the information contained herein may be used solely in connection with the NetApp products discussed in this document.
a569de7d-af5b-4f9b-b206-c96a75b1bcba