[vfio-users] After CPU pinning with libvirt, performance hasn't improved

[Garrett Powell]

I tried this (it was originally at 26) and there's still no change in the
guest.

On Sat, Sep 12, 2015 at 2:25 PM Alex Williamson <alex.l.williamson at gmail.com>
wrote:

> On Sat, Sep 12, 2015 at 11:57 AM, Garrett Powell <
> garretttracypowell at gmail.com> wrote:
>
>> I went back and read your post from last week, and tried setting things
>> up in the way you described there. I also used hugepages and "nohz_full=".
>> Still, my benchmarks with CPU-Z are no different and I'm still getting
>> sub-par performance in-game.
>>
>
> I hadn't seen that GPU-Z even had a benchmark tab. I can make the number
> for my processor double by running:
>
> # echo 100 > /sys/devices/system/cpu/intel_pstate/min_perf_pct
>
> on the host (you might want to take note of the original value first so
> you can restore it later).  Maybe frequency scaling and how to disable it
> to run the processors all out should be your next point of investigation.
>
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