August 28, 20178 yr Ok so new to unRaid but really wanted to give it a go for an all in one media solution... I read of all the Ryzen issues but still couldn't stop myself from investing in Ryzen even though i knew it was going to be a headache! but so far made some good progress using a lot of guides and forums in this community and others and thought I would give back a little as information and benchmarks on this stuff is still pretty sparse (unless I just don't know where to look ) Also if any of you more experienced guys and gals have any recommendations on changes\ what else I should be doing please let me know! Ok so current build is Case: NZXT H440 CPU: AMD Ryzen 5 1600 @ 3.6 Motherboard: Gigabyte Gaming 5 x370 BIOS Version F7RAM: Ripjaws IV 16GB 3000 (4x8GB) DDR4 @2933 XMP profile GPU: Radeon HD 6450 GPU 2: Gigabyte Windforce GTX 970 / Sapphire VaporX 280XHDD's 3xHGST 8TB, 4xWD Red 3tb, 1x 120GB SSD cacheSSD: Samsung 960 EVO NVMe M.2 250GBPSU: Corsair RM850x OS: Unraid 6.4.0-rc7a VM OS: Windows 10 home x64 current progress is actually pretty positive here are the benchmarks I have achieved on with the 970 GTX passed through, NTP off, Emulated CPU, NVMe Passthrough. I have yet to complete the Bare metal benchmarks but looking at other 970 benches out there these don't seem far out. Cinebench 15 Firestrike (normal) Timespy Shadow of Mordor (1920x1080 Ultra settings) Crystal Disk Mark Edited September 5, 20178 yr by Tyranian
August 28, 20178 yr Author With NPT on with the 970 GTX CPU performance went through the floor (around 2000) but GPU performance was good (still above 12000) in Firestrike however, the cinebench CPU results are still over 900. With NPT off the majority of benchmarks work well however, Kodi stutters occasionally on 4k video playback and the system seems a little unresponsive at times in general use, with NPT on this is not an issue and playback was flawless and general usage feels snappy but the benchmarks tank... Another thing of note is SMT doesn't not seem to be supported in the VM. I have found a bug has already been logged here that may be related https://bugs.launchpad.net/qemu/+bug/1703506 My experience with the AMD Radeon 280x was a little different . (will update more with more time) Edited August 30, 20178 yr by Tyranian
September 5, 20178 yr Author Ok so progress so far is positive but its still not perfect, I now have fast responsive machine most of the time with the above benchmarks but it still suffers occasionally from micro stutter I am hoping to try and resolve\reduce this with CPU isolation and dedicating the cpu's to the VM but currently have an issue with my bootloader causing the VM not to load when cpu's are isolated. My settings are as follows Bios CPU is clocked to a fixed 3.6 ghz as dynamic boost doesn't seem to work currently Boot append kvm-amd.npt=0 kvm-amd.nested=0 kvm.ignore_msrs=1 initrd=/bzroot VM NVME & 970 GTX passed through - all cores passed through for testing (will reduce to 6-8) 8Gb memory <cpu mode='host-passthrough' check='none'> ..... <feature policy='disable' name='smep'/> </cpu> I can provide the VM XML if that helps anyone.
September 6, 20178 yr Yes, please, any and all details would be appreciated (including VM XML) since I am just about to switch my ryzen system to unraid with vm passthrough. I don't really game but have a Radeon Sapphire R9 380X card. Are your stutters in gaming or just using windows 10?
September 6, 20178 yr Author Heres my current XML as requested i have lowered the core count recently is the only change from the benchmark results above <domain type='kvm'> <name>WindowsMedia</name> <uuid>452eed65-1dfc-9329-7212-62bde7d85385</uuid> <metadata> <vmtemplate xmlns="unraid" name="Windows 10" icon="windows.png" os="windows10"/> </metadata> <memory unit='KiB'>8388608</memory> <currentMemory unit='KiB'>8388608</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> <os> <type arch='x86_64' machine='pc-i440fx-2.9'>hvm</type> <loader readonly='yes' type='pflash'>/usr/share/qemu/ovmf-x64/OVMF_CODE-pure-efi.fd</loader> <nvram>/etc/libvirt/qemu/nvram/452eed65-1dfc-9329-7212-62bde7d85385_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'/> <feature policy='disable' name='smep'/> </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/isos/spaces_win_clover.img'/> <target dev='hdc' bus='sata'/> <boot order='1'/> <address type='drive' controller='0' bus='0' target='0' unit='2'/> </disk> <controller type='usb' index='0' model='nec-xhci'> <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/> </controller> <controller type='pci' index='0' model='pci-root'/> <controller type='sata' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/> </controller> <controller type='virtio-serial' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/> </controller> <interface type='bridge'> <mac address='52:54:00:a4:6d:f2'/> <source bridge='br0'/> <model type='virtio'/> <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/> </interface> <serial type='pty'> <target port='0'/> </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='0x0a' slot='0x00' function='0x0'/> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/> </hostdev> <hostdev mode='subsystem' type='pci' managed='yes'> <driver name='vfio'/> <source> <address domain='0x0000' bus='0x0a' slot='0x00' function='0x1'/> </source> <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='0x01' slot='0x00' function='0x0'/> </source> <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='no'> <source> <vendor id='0x046d'/> <product id='0xc52b'/> </source> <address type='usb' bus='0' port='1'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='no'> <source> <vendor id='0x046d'/> <product id='0xc531'/> </source> <address type='usb' bus='0' port='2'/> </hostdev> <hostdev mode='subsystem' type='usb' managed='no'> <source> <vendor id='0x0b05'/> <product id='0x17cb'/> </source> <address type='usb' bus='0' port='3'/> </hostdev> <memballoon model='virtio'> <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/> </memballoon> </devices> </domain>
September 21, 20178 yr I completely missed this thread, it's extremely helpful. Looking to go back to test Ryzen for a 2 gamers 1 cpu setup.
September 21, 20178 yr On 9/5/2017 at 4:15 PM, Tyranian said: Ok so progress so far is positive but its still not perfect, I now have fast responsive machine most of the time with the above benchmarks but it still suffers occasionally from micro stutter I am hoping to try and resolve\reduce this with CPU isolation and dedicating the cpu's to the VM but currently have an issue with my bootloader causing the VM not to load when cpu's are isolated. My settings are as follows Bios CPU is clocked to a fixed 3.6 ghz as dynamic boost doesn't seem to work currently Boot append kvm-amd.npt=0 kvm-amd.nested=0 kvm.ignore_msrs=1 initrd=/bzroot VM NVME & 970 GTX passed through - all cores passed through for testing (will reduce to 6-8) 8Gb memory <cpu mode='host-passthrough' check='none'> ..... <feature policy='disable' name='smep'/> </cpu> I can provide the VM XML if that helps anyone. Did you have any further luck with the micro-stuttering? I'm on a Threadripper machine, so the progress in this department definitely interests me.T
September 27, 20178 yr This page has some tips: https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF "Using huge pages for guest and bigger huge page size(e.g. 1 GB) could reduce periodical micro-freezes of whole VM introduced by disabled NPT. If periodical stuttering still occurs try removing smep feature from vCPU..." Nonetheless, I still haven't gotten a GPU to pass through yet. Thanks for the advice above. Will try ASAP.
October 20, 20178 yr Hi all, I'm wondering if dimes007 or Tyranian have any new updates? I'm really interested to see how your testing/tweaking has gone with your Ryzen builds? I recently just swapped out my Xeon components for new a new Ryzen 7 1700 build, but I'm running into severe micro stutter issues with video playback. Benchmarks and gaming seem fine though. I've read about the NPT bug associated with AMD CPUs and KVM... however it seems like you guys have come up with some tweaks to mitigate that issue? Thanks!
October 24, 20178 yr On 9/17/2017 at 9:54 AM, heratic said: Can you use the built in GPU on the board? There is no built in GPU on AM4 boards. There are however, video outputs to allow you to use the GPU built in to the A12 APUs and the not-yet-released Ryzen-based APUs.
October 28, 20178 yr Author Hi, I have not been online for a while so apologies for not responding sooner. I actually just use NPT now that removes micro stuttering and kodi works perfectly, I won't get the same gaming performance, but I don't actually need too in this build it as it's for media pc / dockers / storage. I have no stutters at all on video playback what are you wanting to use your VM for Swiguy? Also think there is some good news on the whole subject here... https://www.phoronix.com/scan.php?page=news_item&px=AMD-NPT-GPU-Pass-Through this is what the suggested fix is I believe By just changing the line in `init_vmcb` that reads: >>> >>> save->g_pat = svm->vcpu.arch.pat; >>> >>> To: >>> >>> save->g_pat = 0x0606060606060606; Edited October 28, 20178 yr by Tyranian
October 28, 20178 yr Author just tested and works so much better now! thanks for applying the patch so quickly. quick tests show very close performance to the NPT off results in my first post
October 28, 20178 yr 10 minutes ago, Tyranian said: just tested and works so much better now! thanks for applying the patch so quickly. quick tests show very close performance to the NPT off results in my first post I have this same board with a 1600x. Any issues passing thru a GPU or sound? Also why use a emulated cpu? Edited October 28, 20178 yr by david279
October 28, 20178 yr Author no issues passing through GPU or sound use both from the graphics card, the only thing I do have is on TV I have to remove HDMI cable and reinsert it when I restart the VM dont have this issue with my monitor though.... I was messing around with both emulated and host passthrough CPU and can't remember why I left on emulated I'm guessing because it either gave better performance or I tested it last that way... I will try again with host passthrough when I get a chance.
November 3, 20178 yr On 10/28/2017 at 1:16 PM, Tyranian said: no issues passing through GPU or sound use both from the graphics card, the only thing I do have is on TV I have to remove HDMI cable and reinsert it when I restart the VM dont have this issue with my monitor though.... I was messing around with both emulated and host passthrough CPU and can't remember why I left on emulated I'm guessing because it either gave better performance or I tested it last that way... I will try again with host passthrough when I get a chance. Curious, do you have CEC-ON on the TV? Does turning it off fix this?
November 5, 20178 yr Author I do use what they call SimpLink on my LG TV as it allows me to control the amp via the same remote and auto turn it on etc I will check if I can turn it off for a HDMI input only. Thanks for the idea!
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