Looking Glass - Triage

n0iz · July 29, 2018, 1:54am

Right

Hexpath · July 29, 2018, 1:54am

Im crying lmao, sorry for the trouble

n0iz · July 29, 2018, 1:57am

No problem, my bad, I thought it was a typo in your original post.

If you want the binary in the /bin directory you would have to copy it as root although it is not recommended to copy your own binaries there I think.

FurryJackman · July 29, 2018, 7:14am

Just curious if anyone has gotten this working on Arch or Antegros? Cause apparently that’s the majority of people using VFIO.

tkoham · July 29, 2018, 7:15am

check the previous posts. Plenty have, just avoid the AUR package that some jerkoff based on the dev branch

Dynamic_Gravity · July 29, 2018, 7:20am

Correct.

The correct place to put binaries you do yourself would be either in /opt or in /home/$USER/bin. Then create appropriate symlinks to /usr/local/bin or in .bashrc to add to PATH.

I myself prefer to place in the /opt.

Then I link:

sudo ln -s /opt/foo/bar.sh /usr/local/bin/foobar

n0iz · July 29, 2018, 12:03pm

The looking-glass package current PKGBUILD uses the A11 archive and does the correct build steps so I’d say it’s safe to use.

And looking at the commits it uses the tagged release and correct build steps since it’s inception (December 2017).

I think you’re talking about the looking-glass-git bleeding-edge package which since 6 days warns users to either grab the bleeding-edge windows host or use the tagged release version.

Anerag · July 29, 2018, 12:34pm

So any tips regarding my subpar performance? I feel like swapping the DVI cable by hand might be less hassle for now.

tkoham · July 29, 2018, 3:03pm

i didn’t say all packages in the AUR

yvan_dasilva · July 29, 2018, 6:04pm

Hi gnif,
This would be usefull for compressed copy only right ? Or is it somehow also affecting the raw copy ?

dnickc · July 30, 2018, 5:00pm

I have the exact same question.

At the moment I have a nv 970 and have my eye on a Firepro W4100 for connectivity reasons, triple 1440p monitors and thinking about a fourth monitor for gaming.
I don’t have any experience in gpu passthrough yet, but the Looking Glass technology makes me very excited.
Would an Firepro W4100 make a good host gpu?

gnif · July 30, 2018, 9:35pm

Does it support OpenGL? If so, then yes…

Anerag · July 30, 2018, 10:06pm

I guess I figured it out. When lowering resolution, adjusting the size of the IVSHMEM accordingly helps a lot (duh). At 1024x768 with vsync off the performance and input lag were acceptable. Looks like I’ll stick to switching the monitor input by hand.

cyberspectre · July 31, 2018, 2:06am

Thanks so much, gnif. I’m really looking forward to getting this working.

Trying to set up in windows now, but I don’t see “PCI standard RAM Controller” anywhere in the device manager. Here’s what’s listed under “System devices”:

system devices listed in windows

ACPI Fixed Feature Button
ACPI Processor Container Device
Composite Bus Enumerator
CPU to PCI bridge
Extended IO bus
Extended IO bus
Extended IO bus
High Definition Audio Controller
High Definition Audio Controller
High Definition Audio Controller
High Definition Audio Controller
High Definition Audio Controller
Microsoft ACPI-Compliant System
Microsoft Basic Display Driver
Microsoft Basic Render Driver
Microsoft System Management BIOS Driver
Microsoft Virtual Drive Enumerator
NDIS Virtual Network Adapter Enumerator
NoMachine USB Adapter
NVVHCI Enumerator
PCI Bus
PCI to ISA Bridge
Plug and Play Software Device Enumerator
Remote Desktop Device Redirector Bus
System CMOS / real time clock
UMBus Root Bus Enumerator
VirtIO Balloon Driver
VirtIO Balloon Driver
VirtIO Balloon Driver
VirtIO Balloon Driver
VirtIO Serial Driver
Volume Manager

Judging from some previous posts in this thread, I suspect this might be due to XML config for the VM. In case that’s true, let me include that here as well:

XML

<domain type='kvm' id='1'>
  <name>Windows 10</name>
  <uuid>6ab1f35a-0cdf-4d58-bab4-8932f6152b90</uuid>
  <metadata>
    <vmtemplate xmlns="unraid" name="Windows 10" icon="windows.png" os="windows10"/>
  </metadata>
  <memory unit='KiB'>20971520</memory>
  <currentMemory unit='KiB'>20971520</currentMemory>
  <memoryBacking>
    <nosharepages/>
  </memoryBacking>
  <vcpu placement='static'>8</vcpu>
  <cputune>
    <vcpupin vcpu='0' cpuset='4'/>
    <vcpupin vcpu='1' cpuset='5'/>
    <vcpupin vcpu='2' cpuset='6'/>
    <vcpupin vcpu='3' cpuset='7'/>
    <vcpupin vcpu='4' cpuset='8'/>
    <vcpupin vcpu='5' cpuset='9'/>
    <vcpupin vcpu='6' cpuset='10'/>
    <vcpupin vcpu='7' cpuset='11'/>
  </cputune>
  <resource>
    <partition>/machine</partition>
  </resource>
  <os>
    <type arch='x86_64' machine='pc-i440fx-2.10'>hvm</type>
    <loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
    <nvram>/etc/libvirt/qemu/nvram/6ab1f35a-0cdf-4d58-bab4-8932f6152b90_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='host-passthrough' check='none'>
    <topology sockets='1' cores='8' threads='1'/>
  </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/user/domains/Windows 10/vdisk1.img'/>
      <backingStore/>
      <target dev='hdc' bus='virtio'/>
      <boot order='1'/>
      <alias name='virtio-disk2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
    <disk type='block' device='disk'>
      <driver name='qemu' type='raw' cache='writeback'/>
      <source dev='/dev/sdc'/>
      <backingStore/>
      <target dev='hdd' bus='virtio'/>
      <alias name='virtio-disk3'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source file='/boot/firmware/virtio-win-0.1.141-andras4.iso'/>
      <backingStore/>
      <target dev='hdb' bus='ide'/>
      <readonly/>
      <alias name='ide0-0-1'/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>
    <controller type='usb' index='0' model='ich9-ehci1'>
      <alias name='usb'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x7'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci1'>
      <alias name='usb'/>
      <master startport='0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0' multifunction='on'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci2'>
      <alias name='usb'/>
      <master startport='2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x1'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci3'>
      <alias name='usb'/>
      <master startport='4'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'>
      <alias name='pci.0'/>
    </controller>
    <controller type='ide' index='0'>
      <alias name='ide'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <alias name='virtio-serial0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </controller>
    <interface type='bridge'>
      <mac address='52:54:00:21:54:a0'/>
      <source bridge='br0'/>
      <target dev='vnet0'/>
      <model type='virtio'/>
      <alias name='net0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </interface>
    <serial type='pty'>
      <source path='/dev/pts/0'/>
      <target port='0'/>
      <alias name='serial0'/>
    </serial>
    <console type='pty' tty='/dev/pts/0'>
      <source path='/dev/pts/0'/>
      <target type='serial' port='0'/>
      <alias name='serial0'/>
    </console>
    <channel type='unix'>
      <source mode='bind' path='/var/lib/libvirt/qemu/channel/target/domain-1-Windows 10/org.qemu.guest_agent.0'/>
      <target type='virtio' name='org.qemu.guest_agent.0' state='disconnected'/>
      <alias name='channel0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <input type='mouse' bus='ps2'>
      <alias name='input0'/>
    </input>
    <input type='keyboard' bus='ps2'>
      <alias name='input1'/>
    </input>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x08' slot='0x00' function='0x0'/>
      </source>
      <alias name='hostdev0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </hostdev>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x08' slot='0x00' function='0x1'/>
      </source>
      <alias name='hostdev1'/>
      <rom file='/boot/firmware/KVM.EVGA.GTX970.4096.140930.rom'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </hostdev>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x0a' slot='0x00' function='0x3'/>
      </source>
      <alias name='hostdev2'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
    </hostdev>
    <hostdev mode='subsystem' type='pci' managed='yes'>
      <driver name='vfio'/>
      <source>
        <address domain='0x0000' bus='0x09' slot='0x00' function='0x3'/>
      </source>
      <alias name='hostdev3'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
    </hostdev>
    <memballoon model='virtio'>
      <alias name='balloon0'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x0b' function='0x0'/>
    </memballoon>
  </devices>
  <seclabel type='dynamic' model='dac' relabel='yes'>
    <label>+0:+100</label>
    <imagelabel>+0:+100</imagelabel>
  </seclabel>
</domain>

I appreciate any help I can get on this

gnif · July 31, 2018, 2:36am

https://looking-glass.hostfission.com/quickstart/linux/libvirt

tiny4579 · July 31, 2018, 11:30pm

Are most of you all with ups drops using antialiasing in games? I had ups drops in nier automata until I disabled antialiasing, and that game only is locked to 60fps.

Also anyone here upgrade from ryzen to ryzen 2 and notice improvements to looking Glass performance?

tkoham · August 1, 2018, 12:36am

nier automata seems to be a problem child regardless

FurryJackman · August 1, 2018, 5:46am

You just wait until the unoptimized mess that is Monster Hunter World… You gotta have a Threadripper CPU to run that bare metal.

tkoham · August 1, 2018, 5:56am

what does that have to do with anything

also unoptimized code wouldn’t benefit from multithreading

FurryJackman · August 1, 2018, 6:22am

You were talking about games with bad performance…