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vmstat or iostat may cause high %sys cpu usage in modctl() (Doc ID 2189974.1)

Last updated on MARCH 11, 2021

Applies to:

Solaris Operating System - Version 11.0 to 11.2 [Release 11.0]
Solaris Operating System - Version 10 to 10 1/13 U11 [Release 10.0]
Information in this document applies to any platform.


When vmstat(1M) or iostat(1M) is run on a system with many LUNs, cpu %sys usage can get high.
Especially when vmstat is run in non-global zones, the impact is higher.



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