[vfio-users] Far Cry Primal

[Jayme Howard]

For what it's worth, I believe I was getting them on Overwatch as well.
It's not happening with EVERY game I have though.

On Mon, Jun 13, 2016 at 8:28 PM, Abdulla Bubshait <darkstego at gmail.com>
wrote:

>
>
> On Mon, Jun 13, 2016 at 6:27 PM, Jayme Howard <g.prime at gmail.com> wrote:
> > That's the output for Doom.
> >
> > [1639445.044855] kvm [9487]: vcpu2 kvm_set_msr_common:
> MSR_IA32_DEBUGCTLMSR
> > 0x1, nop
> > [1639445.044861] kvm [9487]: vcpu2 ignored rdmsr: 0x1c9
> > [1639445.044862] kvm [9487]: vcpu2 ignored rdmsr: 0x680
> > [1639445.044863] kvm [9487]: vcpu2 ignored rdmsr: 0x6c0
> > [1639445.044890] kvm [9487]: vcpu1 kvm_set_msr_common:
> MSR_IA32_DEBUGCTLMSR
> > 0x1, nop
> > [1639445.044895] kvm [9487]: vcpu1 ignored rdmsr: 0x1c9
> > [1639445.044896] kvm [9487]: vcpu1 ignored rdmsr: 0x680
> > [1639445.044897] kvm [9487]: vcpu1 ignored rdmsr: 0x6c0
> > [1639445.044905] kvm [9487]: vcpu1 kvm_set_msr_common:
> MSR_IA32_DEBUGCTLMSR
> > 0x1, nop
> > [1639445.044907] kvm [9487]: vcpu1 ignored rdmsr: 0x1c9
> > [1639445.044908] kvm [9487]: vcpu1 ignored rdmsr: 0x680
> > [1639445.044909] kvm [9487]: vcpu1 ignored rdmsr: 0x6c0
> > [1639445.046195] kvm [9487]: vcpu2 kvm_set_msr_common:
> MSR_IA32_DEBUGCTLMSR
> > 0x1, nop
> > [1639445.046198] kvm [9487]: vcpu2 ignored rdmsr: 0x1c9
> > [1639445.046204] kvm [9487]: vcpu2 kvm_set_msr_common:
> MSR_IA32_DEBUGCTLMSR
> > 0x1, nop
> > [1639445.155114] kvm [9487]: vcpu0 kvm_set_msr_common:
> MSR_IA32_DEBUGCTLMSR
> > 0x1, nop
> > [1639445.155123] kvm [9487]: vcpu0 kvm_set_msr_common:
> MSR_IA32_DEBUGCTLMSR
> > 0x1, nop
> >
>
> Odd, this is another game that is contantly reading the LBR. I initially
> thought this was part of the StarCraft 2 and Heroes of the Storm code. But
> now I think this might be part of Windows 10. Something being called by
> these games is causing a ton of LBR reads. Maybe DX 12?
>
> I think if we can find what is causing these reads in the games we might
> be able to solve it. Because if this is the case we might be getting more
> and more games with performance problems because of these LBR checks.
>
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