Workloads that attempt to perform a very high number of small I/O operations in short bursts might exhibit poor performance, even on an otherwise unloaded server. This situation is in comparison to workloads of a low number of large I/O operations, where performance is not impacted.
Workaround: There are two workarounds available to disable CPU power management. After either workaround, performance is improved, but power consumption is increased. Both workarounds can be used in the same server, so long as their restrictions are followed.
To apply the workaround to all logical domains within a given PDomain, type this command from within the Oracle ILOM CLI interface on the active SP.
-> set /Servers/Pdomains/Pdomain_x/SP/powermgmt policy=disabled
where x is the number of the affected PDomain (0 to 3).
To apply the workaround selectively for each logical domain, or if the administrative-authority property of the logical domain has a value other than platform, type this command at the Oracle Solaris prompt within the logical domain.
# poweradm set administrative-authority=none
If the issue persists, contact your authorized Oracle Service Provider for support.