Comment # 13 on bug 1092035 from James Wang

(In reply to magist3r sergei from comment #12)
> cpuid -1 -l 7 -s 0 -r:
> CPU:
>    0x00000007 0x00: eax=0x00000000 ebx=0x00000281 ecx=0x00000000
> edx=0x0c000000
> 
> Just did some additional tests. Looks like that CPU degradation is caused by
> Windows 10 host only. Any other VM's (openSUSE, Mint, even Windows 7) don't
win10 guest ?
I believe it's win10 guest. otherwise, why you file a bug in SUSE bugzilla,
;-).

Maybe we could install a win10 on our testing  box.

> cause this.
> 
> But with plain IvyBridge profile Windows 10 works fine.
> 
> > One thing to note is that my data for "Single-Core Score" are all about
> > 2000, but I see one of your data is about 4000, that is no guests running on
> > the host. So one suggestion is to check whether ucode-intel/qemu/libvirt is
> > also the latest. :)
> 
> I have installed all available updates for openSUSE Leap 42.3 as usual.
> My CPU is i7-3770 quadcore, maybe it's faster in single core scenario.