Hello Guys,

 

i read the thread about pinning CPU Cores for improve VM Performance. In some Games i have problem with Frame drops ect.

Can you Guys help me with setup it.

I didn't check everything.

 

I have i7-5930k CPU and 2 VM (First GTX970 passthrough) (Second GTX980Ti passthough)

 

Version: 6.1.9

 

CPU Pairs:

 

0/6 - Isolate for Unraid/Linux System

1/7 - Isolate for Unraid/Linux System

2/8 - VM1

3/9 - VM1

4/10 - VM2

5/11 - VM2

 

First Step edit the Syslinux configuration (I dont know witch file on flash drive i have to edit, mine file looks empty so i think its the wrong one. Can someone post his file  (how it looks like))

 

"append isolcpus=2,3,4,5,8,9,10,11 initrd=/bzroot" <- There i have to put in ALL cores (of both VMs) ?

 

 

Now assign the CPU Pairs to VM and isolate:

 

VM1:

  <cputune>
    <vcpupin vcpu='0' cpuset='2'/>
    <vcpupin vcpu='1' cpuset='3'/>
    <vcpupin vcpu='2' cpuset='8'/>
    <vcpupin vcpu='3' cpuset='9'/>
    <emulatorpin cpuset='0,1,6,7'/>   [b]<- i dont now what i have to added there. I also have to added the Core of the SECOND VM or only the           Cores i isolate for unRAID / Linux[/b]
  </cputune>

 

 

VM2:

<cputune>
    <vcpupin vcpu='0' cpuset='4'/>
    <vcpupin vcpu='1' cpuset='5'/>
    <vcpupin vcpu='2' cpuset='10'/>
    <vcpupin vcpu='3' cpuset='11'/>
    <emulatorpin cpuset='0,1,6,7'/>  <- Same Question here 
  </cputune>

 

What do you thing of this ?

 

Thanks guys for helping me!

 

You have several things in your configuration that may be causing problems.

• Set the machine type to i440fx-2.5.
  
• Boot the VM in OVMF, not seaBIOS.  Your GPU must support UEFI boot.
  
• Cut the memory down to 6 or 8 GB to start with and increase later once your VM is operating properly if necessary.
  
• Turn on Hyper-V.
  

 

Just pinning CPUs is not enough and is probably not your issue yet.  Don't mess with CPU pinning until you have your VM running as I have specified above.  You will probably not get decent VM performance until you have done these things.  You might not have to pin the CPUs.

Thanks for answering me!

 

- Set the machine type to i440fx-2.5.

- Boot the VM in OVMF, not seaBIOS.  Your GPU must support UEFI boot.

- Cut the memory down to 6 or 8 GB to start with and increase later once your VM is operating properly if necessary.

- Turn on Hyper-V.

 

1) I will test to set up i440fx-2.5

2) Ok i will test.

3) Will test tomorrow

4) i tought i cant turn on Hyper-V when im using nvidia GPU's ?

 

I tested Firestrike Extreme before

 

4708 on Bare Metal

4498 on VM with 10 Threads.

 

I thought the result is okay

I didnt think about there are so many settings wrong :D

 

Thanks i will test of your edits asap!

 

 

Thanks for answering me!

 

- Set the machine type to i440fx-2.5.

- Boot the VM in OVMF, not seaBIOS.  Your GPU must support UEFI boot.

- Cut the memory down to 6 or 8 GB to start with and increase later once your VM is operating properly if necessary.

- Turn on Hyper-V.

 

1) I will test to set up i440fx-2.5

2) Ok i will test.

3) Will test tomorrow

4) i tought i cant turn on Hyper-V when im using nvidia GPU's ?

 

I tested Firestrike Extreme before

 

4708 on Bare Metal

4498 on VM with 10 Threads.

 

I thought the result is okay

I didnt think about there are so many settings wrong :D

 

Thanks i will test of your edits asap!

 

Hyper-V is best turned on, but with Nvidia GPU it has to be off.

 

Probably the most important thing is to boot the VM in OVMF and use a UEFI compatible GPU.  You can't switch this on a configured VM.  You'll have to make a new VM with OVMF boot.  Do things slowly checking your performance as you go.

 

I would start with no more than 4 CPUs (2 pairs) and no more than 8 GB of memory.  Over provisioning CPUs and memory can degrade performance.  Frame drops are not generally from too little memory or CPUs, it is generally a latency problem in your network, CPU context switching, background tasks taking CPU resources, etc.

I wanted to create a new VM. But i440fx-2.3 is the highest i can setup.

There is no option for i440fx-2.5? Whats wrong ?

I wanted to create a new VM. But i440fx-2.3 is the highest i can setup.

There is no option for i440fx-2.5? Whats wrong ?

 

That's it if you are on 6.1.9.  Use that.

I created a new VM. Windows task manager shows that my SSD always at 100% while 1mb/s transfering...

This also was at the old VM... What is the reason of this.

When i do a ssd speedtest it runs with 400mb/s....