[Ryzen/Threadripper PSA: Core Numberings and Assignments]

I thought i needed to choose the node the ram is connected to. Here is my cpu layout.

 

numactl --hardware
available: 4 nodes (0-3)
node 0 cpus: 0 1 2 3 4 5 24 25 26 27 28 29
node 0 size: 32123 MB
node 0 free: 1897 MB
node 1 cpus: 12 13 14 15 16 17 36 37 38 39 40 41
node 1 size: 0 MB
node 1 free: 0 MB
node 2 cpus: 6 7 8 9 10 11 30 31 32 33 34 35
node 2 size: 32227 MB
node 2 free: 406 MB
node 3 cpus: 18 19 20 21 22 23 42 43 44 45 46 47
node 3 size: 0 MB
node 3 free: 0 MB
node distances:
node   0   1   2   3 
  0:  10  16  16  16 
  1:  16  10  16  16 
  2:  16  16  10  16 
  3:  16  16  16  10

 

I couldn't use node 0 or 2 for VM because the PCI-E slot my GPU is on isnt connected to those I assume because the VM wouldny see the card if I had any other cores selected.

[Ryzen/Threadripper PSA: Core Numberings and Assignments]

i have been tweaking my VM settings and got CPU and memory speed decent along with low latency for L1-L3 but their speed is very low. Any suggestions?

 

<?xml version='1.0' encoding='UTF-8'?>
<domain type='kvm'>
  <name>Windows 10 test</name>
  <uuid>924dacca-7dd4-bc22-0bb7-9280368c9603</uuid>
  <metadata>
    <vmtemplate xmlns="unraid" name="Windows 10" icon="windows.png" os="windows10"/>
  </metadata>
  <memory unit='KiB'>6291456</memory>
  <currentMemory unit='KiB'>6291456</currentMemory>
  <memoryBacking>
    <nosharepages/>
  </memoryBacking>
  <vcpu placement='static'>8</vcpu>
  <cputune>
    <vcpupin vcpu='0' cpuset='18'/>
    <vcpupin vcpu='1' cpuset='42'/>
    <vcpupin vcpu='2' cpuset='19'/>
    <vcpupin vcpu='3' cpuset='43'/>
    <vcpupin vcpu='4' cpuset='20'/>
    <vcpupin vcpu='5' cpuset='44'/>
    <vcpupin vcpu='6' cpuset='21'/>
    <vcpupin vcpu='7' cpuset='45'/>
    <emulatorpin cpuset='18-21'/>
  </cputune>
  <numatune>
    <memory mode='strict' nodeset='0'/>
  </numatune>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64' machine='pc-q35-3.1'>hvm</type>
    <loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
    <nvram>/etc/libvirt/qemu/nvram/924dacca-7dd4-bc22-0bb7-9280368c9603_VARS-pure-efi.fd</nvram>
  </os>
  <features>
    <acpi/>
    <apic/>
    <hyperv>
      <relaxed state='on'/>
      <vapic state='on'/>
      <spinlocks state='on' retries='8191'/>
      <vendor_id state='on' value='none'/>
    </hyperv>
  </features>
  <cpu mode='custom' match='exact' check='partial'>
    <model fallback='allow'>EPYC-IBPB</model>
    <topology sockets='1' cores='4' threads='2'/>
    <feature policy='require' name='topoext'/>
  </cpu>
  <clock offset='localtime'>
    <timer name='hypervclock' present='yes'/>
    <timer name='hpet' present='no'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <devices>
    <emulator>/usr/local/sbin/qemu</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='raw' cache='writeback'/>
      <source file='/mnt/disks/Samsung_SSD_840_PRO_Series_S12PNEAD275552V/VM/Windows 10 test/vdisk1.img'/>
      <target dev='hdc' bus='virtio'/>
      <boot order='1'/>
      <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
    </disk>
   
   
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
    </memballoon>
  </devices>
</domain>