IBM Support

QRadar: Performance issues caused by oversubscribed hardware resources

Troubleshooting


Problem

QRadar® SIEM installed on virtual environments can experience bad performance symptoms when the physical hardware is oversubscribed, and installed along with another virtual machines sharing CPU, Memory, and Disk IO resources,

Symptom

The following are common symptoms for this issue:
  • Slow UI or CLI responses. When using QRadar, it feels slow.
  • Alerts about system load.
  • High CPU load when running all services without a specific cause.
  • A "soft lockup" message can be found in /var/log/messages.
    kernel: BUG: soft lockup - CPU#0 stuck for 67s! 

Document Location

Worldwide

[{"Type":"MASTER","Line of Business":{"code":"LOB77","label":"Automation Platform"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Product":{"code":"SSBQAC","label":"IBM Security QRadar SIEM"},"ARM Category":[{"code":"a8m0z000000cwtiAAA","label":"Performance"}],"ARM Case Number":"TS010372602","Platform":[{"code":"PF016","label":"Linux"}],"Version":"All Versions"}]

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Document Information

Modified date:
27 October 2022

UID

ibm16620291