therapist Posted October 19, 2022 Share Posted October 19, 2022 (edited) I run a W10 gaming VM on my unraid 6.9.2 server which is built as follows: AsrockRack EPYCDT-2t w/ 7571 and 128gb DDR4 2133mhz ECC Geforce 1050 Geforce 3070ti 9305-8i w/ SAS3 expander Various NVME / UD disks VM xml is below: <?xml version='1.0' encoding='UTF-8'?> <domain type='kvm'> <name>GEIST v2</name> <uuid>3b6ceeeb-ee73-fb44-2964-80e165976161</uuid> <metadata> <vmtemplate xmlns="unraid" name="Windows 10" icon="windows.png" os="windows10"/> </metadata> <memory unit='KiB'>16777216</memory> <currentMemory unit='KiB'>16777216</currentMemory> <memoryBacking> <nosharepages/> </memoryBacking> <vcpu placement='static'>24</vcpu> <cputune> <vcpupin vcpu='0' cpuset='26'/> <vcpupin vcpu='1' cpuset='58'/> <vcpupin vcpu='2' cpuset='27'/> <vcpupin vcpu='3' cpuset='59'/> <vcpupin vcpu='4' cpuset='28'/> <vcpupin vcpu='5' cpuset='60'/> <vcpupin vcpu='6' cpuset='29'/> <vcpupin vcpu='7' cpuset='61'/> <vcpupin vcpu='8' cpuset='30'/> <vcpupin vcpu='9' cpuset='62'/> <vcpupin vcpu='10' cpuset='31'/> <vcpupin vcpu='11' cpuset='63'/> <vcpupin vcpu='12' cpuset='14'/> <vcpupin vcpu='13' cpuset='46'/> <vcpupin vcpu='14' cpuset='15'/> <vcpupin vcpu='15' cpuset='47'/> <vcpupin vcpu='16' cpuset='10'/> <vcpupin vcpu='17' cpuset='42'/> <vcpupin vcpu='18' cpuset='11'/> <vcpupin vcpu='19' cpuset='43'/> <vcpupin vcpu='20' cpuset='12'/> <vcpupin vcpu='21' cpuset='44'/> <vcpupin vcpu='22' cpuset='13'/> <vcpupin vcpu='23' cpuset='45'/> <emulatorpin cpuset='1,33'/> </cputune> <resource> <partition>/machine</partition> </resource> <os> <type arch='x86_64' machine='pc-i440fx-5.1'>hvm</type> <loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader> <nvram>/etc/libvirt/qemu/nvram/3b6ceeeb-ee73-fb44-2964-80e165976161_VARS-pure-efi.fd</nvram> </os> <features> <acpi/> <apic/> <hyperv> <relaxed state='on'/> <vapic state='on'/> <spinlocks state='on' retries='8191'/> <vpindex state='on'/> <synic state='on'/> <stimer state='on'/> <reset state='on'/> <vendor_id state='on' value='1234567890ab'/> <frequencies state='on'/> </hyperv> <kvm> <hidden state='on'/> </kvm> <vmport state='off'/> <ioapic driver='kvm'/> </features> <cpu mode='host-passthrough' check='none' migratable='on'> <topology sockets='1' dies='2' cores='6' threads='2'/> <cache mode='passthrough'/> <feature policy='require' name='topoext'/> <feature policy='disable' name='monitor'/> <feature policy='require' name='x2apic'/> <feature policy='require' name='hypervisor'/> <feature policy='disable' name='svm'/> </cpu> <clock offset='localtime'> <timer name='rtc' present='no' tickpolicy='catchup'/> <timer name='pit' present='no' tickpolicy='delay'/> <timer name='hpet' present='no'/> <timer name='hypervclock' present='yes'/> <timer name='tsc' present='yes' mode='native'/> </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='block' device='disk'> <driver name='qemu' type='raw' cache='none' discard='unmap'/> <source dev='/dev/disk/by-id/ata-Samsung_SSD_850_EVO_500GB_S3PTNF0JB57631J'/> <backingStore/> <target dev='hdc' bus='virtio'/> <boot order='1'/> <address type='pci' domain='0x0000' bus='0x03' slot='0x02' function='0x0'/> </disk> <disk type='file' device='disk'> <driver name='qemu' type='raw' cache='writeback' discard='unmap'/> <source file='/mnt/cnvme/VMS/VHD_BULK/GEIST/GEIST_Z.img'/> <target dev='hdd' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x03' slot='0x01' function='0x0'/> </disk> <disk type='block' device='disk'> <driver name='qemu' type='raw' cache='none' discard='unmap'/> <source dev='/dev/nvme1n1'/> <backingStore/> <target dev='hde' bus='virtio'/> <address type='pci' domain='0x0000' bus='0x03' slot='0x04' function='0x0'/> </disk> <controller type='pci' index='0' model='pci-root'/> <controller type='pci' index='1' model='pci-bridge'> <model name='pci-bridge'/> <target chassisNr='1'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </controller> <controller type='pci' index='2' model='pci-bridge'> <model name='pci-bridge'/> <target chassisNr='2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/> </controller> <controller type='pci' index='3' model='pci-bridge'> <model name='pci-bridge'/> <target chassisNr='3'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/> </controller> <controller type='virtio-serial' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </controller> <controller type='usb' index='0' model='ich9-ehci1'> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x7'/> </controller> <controller type='usb' index='0' model='ich9-uhci1'> <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'> <master startport='2'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x1'/> </controller> <controller type='usb' index='0' model='ich9-uhci3'> <master startport='4'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x2'/> </controller> <controller type='scsi' index='0' model='virtio-scsi'> <address type='pci' domain='0x0000' bus='0x00' slot='0x11' function='0x0'/> </controller> <interface type='bridge'> <mac address='52:54:00:f5:93:8b'/> <source bridge='br0'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </interface> <serial type='pty'> <target type='isa-serial' port='0'> <model name='isa-serial'/> </target> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <channel type='unix'> <target type='virtio' name='org.qemu.guest_agent.0'/> <address type='virtio-serial' controller='0' bus='0' port='1'/> </channel> <input type='mouse' bus='ps2'/> <input type='keyboard' bus='ps2'/> <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x21' slot='0x00' function='0x0'/> </source> <rom file='/mnt/cache_protected/VMS/vbios/GeForce_RTX_3070_Ti.rom'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0' multifunction='on'/> </hostdev> <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x21' slot='0x00' function='0x1'/> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x1'/> </hostdev> <memballoon model='none'/> </devices> <seclabel type='dynamic' model='dac' relabel='yes'/> </domain> Ive only had the 3070ti in the system for about 2 months -- prior to this I had a 1070 which performed admirably but at its limits. I have felt that the 3070ti has been BETTER, but "underwhelming" since its installation, and recently I have been suffering from stutters in game and during benchmaks...this had never happened w/ the 1070. I have all the usual XML tweaks -- MSI has been applied The 3dMark benchmarks w/ the 1070 were 5500-5800 and with the 3070ti we're 9500-10500 which is definitely improved but is not consistent. Any advice? Edited October 19, 2022 by therapist add 3dmark ss Quote Link to comment
ghost82 Posted October 20, 2022 Share Posted October 20, 2022 Maybe try to create a new vm with type q35 and point to the same disks; q35 has better support for pcie devices. Quote Link to comment
therapist Posted October 20, 2022 Author Share Posted October 20, 2022 (edited) 6 hours ago, ghost82 said: Maybe try to create a new vm with type q35 and point to the same disks; q35 has better support for pcie devices. The screenshot from 3dmark is actually from a Q35 version I created to test exactly that. The Q35 template was bare bones w/ nothing but device pass thrus -- same results Id be okay with the performance -- maybe I am CPU limited now? But that big drop / stutter happens (see the graph) and it is jarring Edited October 20, 2022 by therapist Quote Link to comment
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