Re: [PATCH v3 5/5] KVM: LAPIC: Optimize timer latency further

2019-05-20 Thread Sean Christopherson
On Mon, May 20, 2019 at 04:19:47PM +0800, Wanpeng Li wrote: > On Sat, 18 May 2019 at 03:50, Sean Christopherson > wrote: > > > > On Thu, May 16, 2019 at 11:06:20AM +0800, Wanpeng Li wrote: > > > From: Wanpeng Li > > > diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c > > > index

Re: [PATCH v3 5/5] KVM: LAPIC: Optimize timer latency further

2019-05-20 Thread Wanpeng Li
On Sat, 18 May 2019 at 03:50, Sean Christopherson wrote: > > On Thu, May 16, 2019 at 11:06:20AM +0800, Wanpeng Li wrote: > > From: Wanpeng Li > > > > Advance lapic timer tries to hidden the hypervisor overhead between the > > host emulated timer fires and the guest awares the timer is fired.

Re: [PATCH v3 5/5] KVM: LAPIC: Optimize timer latency further

2019-05-17 Thread Sean Christopherson
On Thu, May 16, 2019 at 11:06:20AM +0800, Wanpeng Li wrote: > From: Wanpeng Li > > Advance lapic timer tries to hidden the hypervisor overhead between the > host emulated timer fires and the guest awares the timer is fired. However, > it just hidden the time between