Re: [PATCH] powerpc/pseries/cpuidle: add polling idle for shared processor guests

2017-11-16 Thread Nicholas Piggin
On Tue, 10 Oct 2017 17:11:09 +1000 Nicholas Piggin wrote: > For shared processor guests (e.g., KVM), add an idle polling mode rather > than immediately returning to the hypervisor when the guest CPU goes > idle. > > Test setup is a 2 socket POWER9 with 4 guests running, each with vCPUs > equal t

Re: [PATCH] powerpc/pseries/cpuidle: add polling idle for shared processor guests

2017-10-10 Thread Nicholas Piggin
On Tue, 10 Oct 2017 17:11:09 +1000 Nicholas Piggin wrote: > For shared processor guests (e.g., KVM), add an idle polling mode rather > than immediately returning to the hypervisor when the guest CPU goes > idle. > > Test setup is a 2 socket POWER9 with 4 guests running, each with vCPUs > equal t