>From: Daniel Klaffenbach [mailto:danielklaffenbach@gmail.com]
>Sent: Monday, April 28, 2008 3:10 AM
>To: Len Brown
>Cc: Linux Kernel Mailing List; Pallipadi, Venkatesh
>Subject: Re: [2.6.25-stable PATCH] regression: powertop says
>120K wakeups/sec
>
>> commit 0fda6b403f0eca66ad8a7c946b3996e359100443
>>
>> Patch to fix huge number of wakeups reported due to recent changes in
>> processor_idle.c. The problem was that the entry_method
>determination was
>> broken due to one of the recent commits (bc71bec91f987) causing
>> C1 entry to not to go to halt.
>>
>>
http://lkml.org/lkml/2008/3/22/124
>>
>> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
>> Signed-off-by: Len Brown <len.brown@intel.com>
>OK, this fixes my issue with the massive amount of wakeups:
>http://lkml.org/lkml/2008/4/24/70
>
>However the CPU does not really go to C1 or C2 after applying
>this patch to
>the latest git kernel:
>
>Cn Avg residency P-states (frequencies)
>C0 (cpu running) (99,4%) 1,80 Ghz 0,0%
>C1 0,0ms ( 0,0%) 1,60 Ghz 0,0%
>C2 0,0ms ( 0,6%) 800 Mhz 100,0%
>