Skip to main content
NetApp Knowledge Base

High CPU utilization - Resolution Guide

  1. Last updated
  2. Save as PDF
Views:
9,937
Visibility:
Public
Votes:
4
Category:
ontap-9
Specialty:
Perf
Last Updated:

Applies to

ONTAP 9

Description

This is an article to assist in determining the source of high CPU utilization and if it is affecting workload. 

Example graph of high CPU

 

  • Commands such as sysstat report high CPU (columns removed for readability): 
    • Cluster::> set -privilege diag; run -node 1 sysstat -x -d -c 160 -s 1
 CPU    Total      SSD   kB/s    SSD   OTHER    FCP  iSCSI     FCP   kB/s  
                  read  write    util                           in    out  
100%   937103   3575433      12    27%     43 937060      0   22489 3835476
100%   942704   3597300      24    27%     38 942666      0   22624 3857797
100%   933527   3560887       0    27%      7 933520      0   22405 3820792
100%   977261   3730533      24    28%     38 977223      0   23454 3999694
100%   930011   3552147    2733    26%    219 929792      0   22315 3805681
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.