Something is no clear for me. Many people says that turbo core kicks in when 3 cores are idle. I think this has to be clarified. It is not the same 3 idle cores than 3 active cores or threads. Because if that is the case and the 960T being just a thuban with 2 disabled cores, What will happen to turbo core in this model? Just one thread/core will be turbo core enabled?
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Hard to say exactly the implementation. But as I read it, and many here will likely argue, when the OS sees a load to put the chip into a lower power state, if there are 3 or less threads running then Turbo will certainly kick in, with any combination of the 3 cores.Originally Posted by VoodooČ
Something is no clear for me. Many people says that turbo core kicks in when 3 cores are idle. I think this has to be clarified. It is not the same 3 idle cores than 3 active cores or threads. Because if that is the case and the 960T being just a thuban with 2 disabled cores, What will happen to turbo core in this model? Just one thread/core will be turbo core enabled?
At a glance, AMD appears to have implemented a turbo feature similar to what Intel did with Penryn in the mobile space by redefining the P-states, and hard coding in the microcode rules for accessing the higher P state on active core transparent to the OS.
I am anxious to see this in action myself and work with the CPU to figure out how they did it.
One hundred years from now It won't matter
What kind of car I drove What kind of house I lived in
How much money I had in the bank Nor what my cloths looked like.... But The world may be a little better Because, I was important In the life of a child.
-- from "Within My Power" by Forest Witcraft
I made a calculation to find out, how this might work. SeeSomething is no clear for me. Many people says that turbo core kicks in when 3 cores are idle. I think this has to be clarified. It is not the same 3 idle cores than 3 active cores or threads. Because if that is the case and the 960T being just a thuban with 2 disabled cores, What will happen to turbo core in this model? Just one thread/core will be turbo core enabled?
http://citavia.blog.de/2010/04/12/tu...cking-8353947/
The problem is, that the turbo mode voltage will be applied to all cores if turbo mode is engaged.
With Zosma 2 cores need to be idle to allow the 2 other cores to engage turbo mode. This would also stay below TDP. But that is based on voltages as known from Thuban.
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