Re: [PATCH 0/6] x86/cpu hotplug: Wake up offline CPU via mwait ornmi

[Arjan van de Ven]

On 6/5/2012 12:49 PM, Peter Zijlstra wrote:
> On Tue, 2012-06-05 at 21:43 +0200, Thomas Gleixner wrote:
>> Vs. the interrupt/timer/other crap madness:
>>
>>  - We really don't want to have an interrupt balancer in the kernel
>>    again, but we need a mechanism to prevent the user space balancer
>>    trainwreck from ruining the power saving party.
> 
> What's wrong with having an interrupt balancer tied to the scheduler
> which optimistically tries to avoid interrupting nohz/isolated/idle
> cpus?

ideally threaded interrupts are like this.. we really should push for
more usage of such and it all falls into place


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