https://bugzilla.kernel.org/show_bug.cgi?id=25252
--- Comment #10 from ykzhao <yakui.z...@intel.com> 2011-01-06 08:54:51 ---
Hi, Ozlem
Thanks for your test. Sorry for the late response.
I do some tests on another two machines. But I get the different test
result with that on your machine. In my test one is a notebook based on
Ironlake and another is a server machine based on Westmere. The following is my
test result.
a. The notebook based on Ironlake
After one CPU is offlined, the sibling CPU can't enter the deep C-state.
But after the patch in comment #8, it can work well as expected.
b. The server machine based on Westmere
It can work well after one CPU is offlined. Even when more CPUs are
offlined, it still can work.
Will you please attach the output of "cat /proc/cpuinfo" on your machine?
Will you please also attach the output on your machine after running the
following command?
>sleep 20; powertop -d >powertop_dump
Thanks.
Yakui
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