[vfio-users] cpu core pinning with multiple cpus

[Eddie Yen]

I tested performance is these days, and I noticed one thing.

I'm using 4820K, and I use about 6 threads for Win10 VM.
I got a better performance if I set CPU topology as socket=1,core=6,
thread=1.
It will got low performance if I set topology as socket=1, core=3, thread=2.

As 3DMark result, the front one got 106xx score, but the back one only got
99xx.

2015-10-06 10:50 GMT+08:00 Erik Adler <erik.adler at gmail.com>:

> Stupid typo.
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> With Alex's patch I am not getting almost native speeds on my GTX970 in
> the same environment.
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> Correction
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> With Alex's patch I am *NOW* getting almost native speeds on my GTX970 in
> the same environment.
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> *From: *Erik Adler
> *Sent: *den 6 oktober 2015 03:55
> *To: *vfio-users at redhat.com
> *Subject: *RE: [vfio-users] cpu core pinning with multiple cpus
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> The only time I noticed that I needed hyper-v enlightenment has been in
> gaming that involves networking such as in MMOs. These games seem to be
> spamming the heck out of the clock source causing serious drops in FPS and
> game stuttering. 3DMark and the Unigine Valley don't seem to benefit all
> the much from them. In 15 vs15 PvP (Gridiron) the game Tera was rendering
> only 4-ish fps without hyper-v. With Alex's patch I am not getting almost
> native speeds on my GTX970 in the same environment.
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