On 2013-02-13 04:41, Bob Friesenhahn wrote:
unix`i86_mwait 26355 9.5% unix`acpi_cpu_cstate 245493 88.8%
Any more ideas about what to look at?
The above leader seems like time spent in CPU power management, the second command seems invoked from first. https://github.com/illumos/illumos-gate/blob/master/usr/src/uts/i86pc/os/cpupm/cpu_idle.c Googling for "illumos acpi_cpu_cstate" led to a number of issues... https://www.illumos.org/issues/1333 https://www.illumos.org/issues/3084 These suggest that there are (were?) issues with power management, at least on some platforms, and in particular that in their cases the kernel time started at 0% but could grow over time to some 20%. You might look into whether this is relevant to your case, if you can disable the cpupm completely and if that helps... //Jim ------------------------------------------- illumos-discuss Archives: https://www.listbox.com/member/archive/182180/=now RSS Feed: https://www.listbox.com/member/archive/rss/182180/21175430-2e6923be Modify Your Subscription: https://www.listbox.com/member/?member_id=21175430&id_secret=21175430-6a77cda4 Powered by Listbox: http://www.listbox.com
