Running vmstat or iostat in a Non-Global Zone can be much slower than the global zone and may cause increased %sys in the global zone
Last updated on SEPTEMBER 26, 2016
Applies to:Solaris Operating System - Version 11 11/11 to 11.2 [Release 11.0]
Solaris x64/x86 Operating System - Version 11 11/11 to 11.2 [Release 11.0]
Information in this document applies to any platform.
A noticable increase in %sys will be seen in the global zone while running vmstat or iostat in the Non-Global Zone(s). %sys rises sharply when vmstat(1M) is executed in two or more non-global zones at the same time. When vmstat(1M) executed only in one zone, the increase of %sys is smaller. This issue affects commands such as vmstat, prstat, iostat, etc.
The output of sar(1M) from the global zone when vmstat starts may look like this:
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