[Bug 12788] After suspend/resume, processor spends more time in C0 state, C3 hardly used

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http://bugzilla.kernel.org/show_bug.cgi?id=12788





--- Comment #34 from James Ettle <theholyettlz@xxxxxxxxxxxxxx>  2009-03-29 15:17:08 ---
(In reply to comment #33)
> Hi, James
>     Thanks for the test. It seems that the wakeups per second become normal
> after resuming if the boot option of "idle=nomwait" is used.
>     But the powertop reports that C0 usage is very high. And the CPU will stay
> in P0-state for about 40.4%.
>     Will you please confirm whether the CPU work load is high after resuming?

Yes, in all cases I've closes all unnecessary applications to make sure of
this. Powertop readings were taken at an idle desktop, CPU usage at the 2-3%
mark. (In some cases, there were more applications open *before*
suspend/resume, with a lower C0 occupancy.)

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