From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Sarnie <commendsarnex-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Subject: Re: AMD Ryzen KVM/NPT/IOMMU issue
Date: Wed, 28 Jun 2017 21:54:07 -0400
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Cc: Paolo Bonzini <pbonzini-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
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	Matthias Ehrenfeuchter <efeu-5Zrl/DuVEGLQT0dZR+AlfA@public.gmane.org>
To: Thiago Padilha <tpadilha84-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
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On Wed, Jun 28, 2017 at 9:50 PM, Thiago Padilha <tpadilha84-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> wrote:
> Some more data from 3DMark benchmarks:
>
> Time Spy(DirectX 12):
> - Graphics test 1:
>   - npt=0: 37.65 FPS
>   - npt=1: 24.22 FPS (36% drop)
> - Graphics test 2:
>   - npt=0: 33.05 FPS
>   - npt=1: 29.65 FPS (10% drop)
> - CPU test:
>   - npt=0: 17.35 FPS
>   - npt=1: 12.03 FPS (31% drop)
>
> Fire Strike(DirectX 11):
> - Graphics test 1:
>   - npt=0: 80.56 FPS
>   - npt=1: 41.89 FPS (49% drop)
> - Graphics test 2:
>   - npt=0: 70.64 FPS
>   - npt=1: 60.75 FPS (14% drop)
> - Physics test:
>   - npt=0: 50.14 FPS
>   - npt=1: 5.78 FPS (89% drop)
> - Combined test:
>   - npt=0: 32.83 FPS
>   - npt=1: 17.70 FPS (47% drop)
>
> Sky Diver(DirectX 11):
> - Graphics test 1:
>   - npt=0: 248.81 FPS
>   - npt=1: 173.63 FPS (31% drop)
> - Graphics test 2:
>   - npt=0: 250.49 FPS
>   - npt=1: 124.84 FPS (51% drop)
> - Physics test:
>   - 8 threads:
>     - npt=0: 140.93 FPS
>     - npt=1: 119.08 FPS (15% drop)
>   - 24 threads:
>     - npt=0: 110.22 FPS
>     - npt=1: 74.55 FPS (33% drop)
>   - 48 threads:
>     - npt=1: 71.56 FPS
>     - npt=1: 45.93 FPS (36% drop)
>   - 96 threads:
>     - npt=0: 41.04 FPS
>     - npt=1: 24.81 FPS (40% drop)
> - Combined test:
>   - npt=0: 75.65 FPS
>   - npt=1: 50.45 FPS (33% drop)

Hi Thiago,

Thanks for the data, I'm sure it will be useful. Sorry, I should have
noted that I've only tested a few games/benchmarks and never any
non-intensive loads.

Sarnex