questions of cpuidle

[Alex Shi]

On 12/10/2013 10:53 PM, Arjan van de Ven wrote:
> On 12/9/2013 10:08 PM, Alex Shi wrote:
>> And for monitor/mwait idle method, seems deep c-state cpu need to keep a
>> eye on memory bus. So seems the memory controller in cpu package is
>> impossible to get into sleep, right?
> not the memory bus
> the cache coherency logic ;-)
> 

Thanks a lot, Arjan!

But in Intel c7 state, l3 cache also flushed. Are there some other unit
monitor this?

-- 
Thanks
    Alex