Hello! The main source of load of host during vm is: Skype, music, samba transfers. If you want, you can try heroes of the storm. It is a free game. A simple game versus bots. At first fight, fps drop hardly. I play battlefront and fallout 4 without any problems also on 6 cores. I think the issue is specific to this game. But with closes sources... It is hard to debug and know why dpc affect it so much. (or something else) I should try to pass pci usb3. But if I remember, it is not iommu friendly. My hard is: - 4790k - Asrock extreme 6 - R9 290 (i use it's sound output plugged to line in of Linux.) All is msi but sound of gpu. No problem anyway with it sound is perfect. I am on holiday. I can do more testing when I am back (next week). <div class="gmail_quote">On 17 Jan 2016 1:19 pm, "Milos Kaurin" <<a href="mailto:milos.kaurin@gmail.com">milos.kaurin@gmail.com</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello guys, I just tested with Quentin's method, and did some more tests in general Key things to note: 1. I use an Nvidia card 2. I don't pass through individual USB devices, I pass an entire USB3 controller (PCI) Here are my results: Bare metal: FPS: 48.7 Score: 2036 Min FPS: 23.4 Max FPS: 90.6 DPS: Floats around ~1042µs DPS absolute max: 1545µs (rare occurrence) DPS polling is at 500µs pin/shield/hugetables/cpu 1x3x1 (Quentin's best-scenario use): FPS: 48.1 Score: 2011 Min FPS: 22.7 Max FPS: 92.3 DPS: Floats around ~1042µs, DPS absolute max 2043µs (rare occurrence). DPS polling is at 976µs pin/cpuisol/hugetables/cpu 1x3x2 (cpuisol instead of shield script) FPS: 47.9~ Score: 2005~ Min FPS: 19.7~ Max FPS: 91.5~ DPS: Floats around ~2000, unstable! DPS absolute max 22k (rare occurrence, but happens more often than other tests). DPS polling is at 476µs nopin/hugetables/cpu 1x4x2 (My old use) FPS: 47.9 Score: 2005 Min FPS: 19.7 Max FPS: 91.5 DPS: Floats around ~1145µs, DPS absolute max 12025µs (rare occurrence). DPS polling is at 976µs pin/hugetables/cpu 1x3x2 (My new preffered) FPS: 47.9~ Score: 2011 Min FPS: 19.7~ Max FPS: 91.5~ DPS: Floats around ~1145µs, DPS absolute max 12025µs (rare occurrence). DPS polling is at 976µs Other notes: * Pinning IOthreads and/or emulator doesn't do much for DPC/performance - Didn't put any load on the host, though. It might have impact if the host has some load * Even though I get best DPC/performance with Quentin's use, I don't see any reason to not use my old nopin 1x4x2 or pin 1x3x2 as I obviously don't have the same performance issues * I have been playing quite a lot of Rocket League and some Fallout 4, without noticing any kind of sound/graphics issues. Quentin, this might be specific to your hardware. Let me know if you want me to run more tests. Regards, Milos On Mon, Jan 11, 2016 at 3:08 PM, Quentin Deldycke <<a href="mailto:quentindeldycke@gmail.com">quentindeldycke@gmail.com</a>> wrote: > Hello, > > I use intel cpu (i7 4790k). But yes i have an R9 290 as gpu. > I try to offload to core 0, so in fact i can keep threads 0 and 4 for linux > The rest of your resume is right. > > > I use the same program for dpc check. Is also available: latencymon. > But i find dpclat more interesting. > <a href="http://www.resplendence.com/latencymon" rel="noreferrer" target="_blank">http://www.resplendence.com/latencymon</a> > > Script for moving all threads to 0,4: > <a href="https://github.com/qdel/scripts/blob/master/vfio/shieldbuild" rel="noreferrer" target="_blank">https://github.com/qdel/scripts/blob/master/vfio/shieldbuild</a> > > XML file: > <a href="https://github.com/qdel/scripts/blob/master/vfio/win10.xml" rel="noreferrer" target="_blank">https://github.com/qdel/scripts/blob/master/vfio/win10.xml</a> > > Kernel command line: > intel_iommu=on iommu=pt vfio_iommu_type1.allow_unsafe_interrupts=1 > kvm.ignore_msrs=1 drm.rnodes=1 i915.modeset=1 > nohz_full=1,2,3,4,5,6,7 rcu_nocbs=1,2,3,4,5,6,7 > default_hugepagesz=1G hugepagesz=1G hugepages=12 > > > Notes about my setup: > * I have 3 monitors. All are connected to intel > 2 of them have a input in AMD. With xrandr > i can disable these screens and they switch source > (at least one, the other is buggy, most times i need to push the source > button). > * I pass also a NVMe drive (this thing is actually BRUTAL!!!) > - I can boot the same drive on native! > * I pass my second network card > * I pass one of my sata controller (i have ntfs drives there) > * I pass usb devices and not the whole controller > - with the little udev script i plug new devices to the vm if this one is > started > * Sound is output by HDMI and back into line in of pc. I can use the line in > control to > modify the sound of the whole vm. Work perfectly actually. > * Best thing for this is dual monitor + synergy :) > > > -- > Deldycke Quentin > > > On 11 January 2016 at 15:06, Milos Kaurin <<a href="mailto:milos.kaurin@gmail.com">milos.kaurin@gmail.com</a>> wrote: >> >> Hello, >> >> Yes, I have a corei7. >> >> I have to admit that seeing Quentin's e-mail was the first I found out >> about DPC latency. I'm taking a strictly empirical approach for now, >> but I'd like to dive deeper into this, at least to provide a reference >> point for you guys. >> Reason for this being is that even though I'm familiar with Linux, I'm >> don't have low-level familiarity as you guys have (other than >> conceptual). I'm more than willing to learn given the opportunity, >> though. >> >> Quentin: >> From what I understand about your use: >> * You have an AMD CPU >> * In your kernel parameters, you are trying to offload your >> scheduling-clock interrupts to only thread(core?) 0. >> * Your script sets kernel memory management, future tasks and current >> tasks to be run at thread 0 >> * Valley bench seems to be most sensitive to DPC latency issues (as >> well as "Heroes of the storm") >> * Pinning only 3 cores to the VM gives you best results, but seeing >> that newer games take advantage of multiple cores, you'd like to have >> an option to use more cores for winVirt >> >> What I'd like from you: >> * Can you provide me with the optimal (3core -> VM) settings, >> including kernel parameters, your updated script and the XML of your >> virt in this mode of use. >> * Can you provide me with a method how to keep track of DPC latency? I >> found this: <a href="http://www.thesycon.de/deu/latency_check.shtml" rel="noreferrer" target="_blank">http://www.thesycon.de/deu/latency_check.shtml</a> , but I'd >> like us to use the same method. >> >> Why I'm asking all of this: >> Just ran valley (HD extreme). These are the results: >> >> *Bare-metal: >> FPS: 48.7 >> Score: 2036 >> Min FPS: 23.4 >> Max FPS:90.6 >> >> * hugetables, nopin, 1x4x2, host-passthrough: >> FPS: 47.9 >> Score: 2005 >> Min FPS: 19.7 >> Max FPS: 91.5 >> >> The score is ~1.5 % worse in the virt. >> The min FPS difference (which looks significant) might be negligible >> because I'm running Firefox in the host with a bunch of tabs open >> (idle, though) >> >> I have also been playing "Rocket League" in the virt which is a very >> twitchy game, and I play it on an experienced level. I did not find >> any problems with playing the game like this. >> >> My current XML: <a href="https://gist.github.com/Kaurin/0b6726e8a94084bd0b64" rel="noreferrer" target="_blank">https://gist.github.com/Kaurin/0b6726e8a94084bd0b64</a> >> PCI devices passed through: nvidia+HDMI audio, onboard sound, onboard >> XHCI USB controller >> >> Notes about my setup: >> * Both virt and host are hooked up to the same monitor (host-VGA / virt - >> DVI). >> * I also don't have any additional USB controllers, which means that >> when I turn on the virt, I lose my usb(mouse,keyboard) on the host >> * Same goes for sound: when I turn on the virt, I lose sound in the host >> * I just flip the monitor input and I'm good to go. >> * I have plans to set up new hardware so I can use both host/virt at >> the same time >> >> Let me know if my further input would be useful. >> >> Regards, >> Milos >> >> >> >> On Mon, Jan 11, 2016 at 9:19 AM, Quentin Deldycke >> <<a href="mailto:quentindeldycke@gmail.com">quentindeldycke@gmail.com</a>> wrote: >> > In fact, some games react quite well to this latency. Fallout for >> > example >> > doesn't show much difference between host - vm with brutal DPC and vm >> > with >> > "good dpc". >> > >> > I tested 3 modes: >> > >> > - all 8 core to vm without pinning: brutal dpc, did not tried to play >> > games >> > on it. Only ungine valley => 2600 points >> > - 6 cores pinned to the vm + emulator on core 0,1: correct latency. Most >> > games work flawlessly (bf4 / battlefront / diablo III) but some are >> > catastrophic: Heroes of the storm. valley => 2700 >> > - 3 cores pinned to vm: Perfect latency, all games work ok. But i am >> > affraid >> > 3 cores are a bit 'not enough" for incoming games. valley => 3100 points >> > >> > I think that valley is a good benchmark. It is free and small. It seems >> > to >> > be affected by this latency problem like most games. >> > >> > >> > >> > >> > -- >> > Deldycke Quentin >> > >> > >> > On 11 January 2016 at 09:59, rndbit <<a href="mailto:rndbit@sysret.net">rndbit@sysret.net</a>> wrote: >> >> >> >> Tried Milos' config too - DPC latency got worse. I use AMD cpu though >> >> so >> >> its hardly comparable. >> >> One thing to note is that both VM and bare metal (same OS) score around >> >> 5k >> >> points in 3dmark fire strike test (VM 300 points less). Sounds not too >> >> bad >> >> but in reality bf4 is pretty much unplayable in VM due to bad >> >> performance >> >> and sound glitches while playing it on bare metal is just fine. Again >> >> DPC >> >> latency on bare metal even under load is ok - occasional spike here and >> >> there but mostly its within norm. Any kind of load on VM makes DPC go >> >> nuts >> >> and performance is terrible. I even tried isolcpus=4,5,6,7 and binding >> >> vm to >> >> those free cores - its all the same. >> >> >> >> Interesting observation is that i used to play titanfall without a >> >> hitch >> >> in VM some time in the past, 3.10 kernel or so (no patches). When i get >> >> free >> >> moment ill try downgrading kernel, maybe problem is there. >> >> >> >> >> >> On 2016.01.11 10:39, Quentin Deldycke wrote: >> >> >> >> Also, i juste saw something: >> >> >> >> You use ultra (4k?) settings on a 770gtx. This is too heavy for it. You >> >> have less than 10fps. So in fact if you loose let's say 10% of >> >> performance, >> >> you will barely see it. >> >> >> >> What we search is a very high reponse time. Could you please compare >> >> your >> >> system with a less heavy benchmark. It is easier to see the difference >> >> at >> >> ~50-70 fps. >> >> >> >> In my case, this configuration work. But my fps fluctuate quite a lot. >> >> If >> >> you are a bit a serious gamer, this falls are not an option during game >> >> :) >> >> >> >> -- >> >> Deldycke Quentin >> >> >> >> >> >> On 11 January 2016 at 08:54, Quentin Deldycke >> >> <<a href="mailto:quentindeldycke@gmail.com">quentindeldycke@gmail.com</a>> >> >> wrote: >> >>> >> >>> Using this mode, >> >>> >> >>> DPC Latency is hugely buggy using this mode. >> >>> >> >>> My fps are also moving on an apocaliptic way: from 80 to 45 fps >> >>> without >> >>> moving on ungine valley. >> >>> >> >>> Do you have anything working on your linux? (i have plasma doing >> >>> nothing >> >>> on another screen) >> >>> >> >>> Ungine heaven went back to 2600 points from 3100 >> >>> Cinebench r15: single core 124 >> >>> >> >>> >> >>> Could you please send your whole xml file, qemu version and kernel >> >>> config >> >>> / boot? >> >>> >> >>> I will try to get 3dmark and verify host / virtual comparison >> >>> >> >>> -- >> >>> Deldycke Quentin >> >>> >> >>> >> >>> On 9 January 2016 at 20:24, Milos Kaurin <<a href="mailto:milos.kaurin@gmail.com">milos.kaurin@gmail.com</a>> >> >>> wrote: >> >>>> >> >>>> My details: >> >>>> Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz >> >>>> 32GB total ram >> >>>> hugetables@16x1GB for the guest (didn't have much to do with 3dmark >> >>>> results) >> >>>> >> >>>> I have had the best performance with: >> >>>> >> >>>> <vcpu placement='static'>8</vcpu> >> >>>> <cpu mode='custom' match='exact'> >> >>>> <model fallback='allow'>host-passthrough</model> >> >>>> <topology sockets='1' cores='4' threads='2'/> >> >>>> </cpu> >> >>>> >> >>>> No CPU pinning on either guest or host >> >>>> >> >>>> Benchmark example (Bare metal Win10 vs Fedora Guest Win10) >> >>>> <a href="http://www.3dmark.com/compare/fs/7076732/fs/7076627#" rel="noreferrer" target="_blank">http://www.3dmark.com/compare/fs/7076732/fs/7076627#</a> >> >>>> >> >>>> >> >>>> Could you try my settings and report back? >> >>>> >> >>>> On Sat, Jan 9, 2016 at 3:14 PM, Quentin Deldycke >> >>>> <<a href="mailto:quentindeldycke@gmail.com">quentindeldycke@gmail.com</a>> wrote: >> >>>> > I use virsh: >> >>>> > >> >>>> > ===SNIP=== >> >>>> > <vcpu placement='static'>3</vcpu> >> >>>> > <cputune> >> >>>> > <vcpupin vcpu='0' cpuset='1'/> >> >>>> > <vcpupin vcpu='1' cpuset='2'/> >> >>>> > <vcpupin vcpu='2' cpuset='3'/> >> >>>> > <emulatorpin cpuset='6-7'/> >> >>>> > </cputune> >> >>>> > ===SNAP=== >> >>>> > >> >>>> > I have a prepare script running: >> >>>> > >> >>>> > ===SNIP=== >> >>>> > sudo mkdir /cpuset >> >>>> > sudo mount -t cpuset none /cpuset/ >> >>>> > cd /cpuset >> >>>> > echo 0 | sudo tee -a cpuset.cpu_exclusive >> >>>> > echo 0 | sudo tee -a cpuset.mem_exclusive >> >>>> > >> >>>> > sudo mkdir sys >> >>>> > echo 'Building shield for core system... threads 0 and 4, and we >> >>>> > place >> >>>> > all >> >>>> > runnning tasks there' >> >>>> > /bin/echo 0,4 | sudo tee -a sys/cpuset.cpus >> >>>> > /bin/echo 0 | sudo tee -a sys/cpuset.mems >> >>>> > /bin/echo 0 | sudo tee -a sys/cpuset.cpu_exclusive >> >>>> > /bin/echo 0 | sudo tee -a sys/cpuset.mem_exclusive >> >>>> > for T in `cat tasks`; do sudo bash -c "/bin/echo $T > >> >>>> > sys/tasks">/dev/null >> >>>> > 2>&1 ; done >> >>>> > cd - >> >>>> > ===SNAP=== >> >>>> > >> >>>> > Note that i use this command line for the kernel >> >>>> > nohz_full=1,2,3,4,5,6,7 rcu_nocbs=1,2,3,4,5,6,7 >> >>>> > default_hugepagesz=1G >> >>>> > hugepagesz=1G hugepages=12 >> >>>> > >> >>>> > >> >>>> > -- >> >>>> > Deldycke Quentin >> >>>> > >> >>>> > >> >>>> > On 9 January 2016 at 15:40, rndbit <<a href="mailto:rndbit@sysret.net">rndbit@sysret.net</a>> wrote: >> >>>> >> >> >>>> >> Mind posting actual commands how you achieved this? >> >>>> >> >> >>>> >> All im doing now is this: >> >>>> >> >> >>>> >> cset set -c 0-3 system >> >>>> >> cset proc -m -f root -t system -k >> >>>> >> >> >>>> >> <vcpu placement='static'>4</vcpu> >> >>>> >> <cputune> >> >>>> >> <vcpupin vcpu='0' cpuset='4'/> >> >>>> >> <vcpupin vcpu='1' cpuset='5'/> >> >>>> >> <vcpupin vcpu='2' cpuset='6'/> >> >>>> >> <vcpupin vcpu='3' cpuset='7'/> >> >>>> >> <emulatorpin cpuset='0-3'/> >> >>>> >> </cputune> >> >>>> >> >> >>>> >> Basically this puts most of threads to 0-3 cores including >> >>>> >> emulator >> >>>> >> threads. Some threads cant be moved though so they remain on 4-7 >> >>>> >> cores. VM >> >>>> >> is given 4-7 cores. It works better but there is still much to be >> >>>> >> desired. >> >>>> >> >> >>>> >> >> >>>> >> >> >>>> >> On 2016.01.09 15:59, Quentin Deldycke wrote: >> >>>> >> >> >>>> >> Hello, >> >>>> >> >> >>>> >> Using cpuset, i was using the vm with: >> >>>> >> >> >>>> >> Core 0: threads 0 & 4: linux + emulator pin >> >>>> >> Core 1,2,3: threads 1,2,3,5,6,7: windows >> >>>> >> >> >>>> >> I tested with: >> >>>> >> Core 0: threads 0 & 4: linux >> >>>> >> Core 1,2,3: threads 1,2,3: windows >> >>>> >> Core 1,2,3: threads 5,6,7: emulator >> >>>> >> >> >>>> >> The difference between both is huge (DPC latency is mush more >> >>>> >> stable): >> >>>> >> Performance on single core went up to 50% (cinebench ratio by core >> >>>> >> from >> >>>> >> 100 to 150 points) >> >>>> >> Performance on gpu went up to 20% (cinebench from 80fps to 100+) >> >>>> >> Performance on "heroes of the storm" went from 20~30 fps to stable >> >>>> >> 60 >> >>>> >> (and >> >>>> >> much time more than 100) >> >>>> >> >> >>>> >> (performance of Unigine Heaven went from 2700 points to 3100 >> >>>> >> points) >> >>>> >> >> >>>> >> The only sad thing is that i have the 3 idle threads which are >> >>>> >> barely >> >>>> >> used... Is there any way to put them back to windows? >> >>>> >> >> >>>> >> -- >> >>>> >> Deldycke Quentin >> >>>> >> >> >>>> >> >> >>>> >> On 29 December 2015 at 17:38, Michael Bauer <<a href="mailto:michael@m-bauer.org">michael@m-bauer.org</a>> >> >>>> >> wrote: >> >>>> >>> >> >>>> >>> I noticed that attaching a DVD-Drive from the host leads to HUGE >> >>>> >>> delays. >> >>>> >>> I had attached my /dev/sr0 to the guest and even without a DVD in >> >>>> >>> the drive >> >>>> >>> this was causing huge lag about once per second. >> >>>> >>> >> >>>> >>> Best regards >> >>>> >>> Michael >> >>>> >>> >> >>>> >>> >> >>>> >>> Am 28.12.2015 um 19:30 schrieb rndbit: >> >>>> >>> >> >>>> >>> 4000μs-16000μs here, its terrible. >> >>>> >>> Tried whats said on >> >>>> >>> <a href="https://lime-technology.com/forum/index.php?topic=43126.15" rel="noreferrer" target="_blank">https://lime-technology.com/forum/index.php?topic=43126.15</a> >> >>>> >>> Its a bit better with this: >> >>>> >>> >> >>>> >>> <vcpu placement='static'>4</vcpu> >> >>>> >>> <cputune> >> >>>> >>> <vcpupin vcpu='0' cpuset='4'/> >> >>>> >>> <vcpupin vcpu='1' cpuset='5'/> >> >>>> >>> <vcpupin vcpu='2' cpuset='6'/> >> >>>> >>> <vcpupin vcpu='3' cpuset='7'/> >> >>>> >>> <emulatorpin cpuset='0-3'/> >> >>>> >>> </cputune> >> >>>> >>> >> >>>> >>> I tried isolcpus but it did not yield visible benefits. ndis.sys >> >>>> >>> is >> >>>> >>> big >> >>>> >>> offender here but i dont really understand why. Removing network >> >>>> >>> interface >> >>>> >>> from VM makes usbport.sys take over as biggest offender. All this >> >>>> >>> happens >> >>>> >>> with performance governor of all cpu cores: >> >>>> >>> >> >>>> >>> echo performance | tee >> >>>> >>> /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor >/dev/null >> >>>> >>> >> >>>> >>> Cores remain clocked at 4k mhz. I dont know what else i could >> >>>> >>> try. >> >>>> >>> Does >> >>>> >>> anyone have any ideas..? >> >>>> >>> >> >>>> >>> On 2015.10.29 08:03, Eddie Yen wrote: >> >>>> >>> >> >>>> >>> I tested again with VM reboot, I found that this time is about >> >>>> >>> 1000~1500μs. >> >>>> >>> Also I found that it easily get high while hard drive is loading, >> >>>> >>> but >> >>>> >>> only few times. >> >>>> >>> >> >>>> >>> Which specs you're using? Maybe it depends on CPU or patches. >> >>>> >>> >> >>>> >>> 2015-10-29 13:44 GMT+08:00 Blank Field >> >>>> >>> <<a href="mailto:ihatethisfield@gmail.com">ihatethisfield@gmail.com</a>>: >> >>>> >>>> >> >>>> >>>> If i understand it right, this software has a fixed latency >> >>>> >>>> error >> >>>> >>>> of 1 >> >>>> >>>> ms(1000us) in windows 8-10 due to different kernel timer >> >>>> >>>> implementation. So >> >>>> >>>> i guess your latency is very good. >> >>>> >>>> >> >>>> >>>> On Oct 29, 2015 8:40 AM, "Eddie Yen" <<a href="mailto:missile0407@gmail.com">missile0407@gmail.com</a>> >> >>>> >>>> wrote: >> >>>> >>>>> >> >>>> >>>>> Thanks for information! And sorry I don'r read carefully at >> >>>> >>>>> beginning >> >>>> >>>>> message. >> >>>> >>>>> >> >>>> >>>>> For my result, I got about 1000μs below and only few times got >> >>>> >>>>> 1000μs >> >>>> >>>>> above when idling. >> >>>> >>>>> >> >>>> >>>>> I'm using 4820K and used 4 threads to VM, also I set these 4 >> >>>> >>>>> threads >> >>>> >>>>> as 4 cores in VM settings. >> >>>> >>>>> The OS is Windows 10. >> >>>> >>>>> >> >>>> >>>>> 2015-10-29 13:21 GMT+08:00 Blank Field >> >>>> >>>>> <<a href="mailto:ihatethisfield@gmail.com">ihatethisfield@gmail.com</a>>: >> >>>> >>>>>> >> >>>> >>>>>> I think they're using this: >> >>>> >>>>>> <a href="http://www.thesycon.de/deu/latency_check.shtml" rel="noreferrer" target="_blank">www.thesycon.de/deu/latency_check.shtml</a> >> >>>> >>>>>> >> >>>> >>>>>> On Oct 29, 2015 6:11 AM, "Eddie Yen" <<a href="mailto:missile0407@gmail.com">missile0407@gmail.com</a>> >> >>>> >>>>>> wrote: >> >>>> >>>>>>> >> >>>> >>>>>>> Sorry, but how to check DPC Latency? >> >>>> >>>>>>> >> >>>> >>>>>>> 2015-10-29 10:08 GMT+08:00 Nick Sukharev >> >>>> >>>>>>> <<a href="mailto:nicksukharev@gmail.com">nicksukharev@gmail.com</a>>: >> >>>> >>>>>>>> >> >>>> >>>>>>>> I just checked on W7 and I get 3000μs-4000μs one one of the >> >>>> >>>>>>>> guests >> >>>> >>>>>>>> when 3 guests are running. >> >>>> >>>>>>>> >> >>>> >>>>>>>> On Wed, Oct 28, 2015 at 4:52 AM, Sergey Vlasov >> >>>> >>>>>>>> <<a href="mailto:sergey@vlasov.me">sergey@vlasov.me</a>> >> >>>> >>>>>>>> wrote: >> >>>> >>>>>>>>> >> >>>> >>>>>>>>> On 27 October 2015 at 18:38, LordZiru <<a href="mailto:lordziru@gmail.com">lordziru@gmail.com</a>> >> >>>> >>>>>>>>> wrote: >> >>>> >>>>>>>>>> >> >>>> >>>>>>>>>> I have brutal DPC Latency on qemu, no matter if using >> >>>> >>>>>>>>>> pci-assign >> >>>> >>>>>>>>>> or vfio-pci or without any passthrought, >> >>>> >>>>>>>>>> >> >>>> >>>>>>>>>> my DPC Latency is like: >> >>>> >>>>>>>>>> 10000,500,8000,6000,800,300,12000,9000,700,2000,9000 >> >>>> >>>>>>>>>> and on native windows 7 is like: >> >>>> >>>>>>>>>> 20,30,20,50,20,30,20,20,30 >> >>>> >>>>>>>>> >> >>>> >>>>>>>>> >> >>>> >>>>>>>>> In Windows 10 guest I constantly have red bars around >> >>>> >>>>>>>>> 3000μs >> >>>> >>>>>>>>> (microseconds), spiking sometimes up to 10000μs. >> >>>> >>>>>>>>> >> >>>> >>>>>>>>>> >> >>>> >>>>>>>>>> I don't know how to fix it. >> >>>> >>>>>>>>>> this matter for me because i are using USB Sound Card for >> >>>> >>>>>>>>>> my >> >>>> >>>>>>>>>> VMs, >> >>>> >>>>>>>>>> and i get sound drop-outs every 0-4 secounds >> >>>> >>>>>>>>>> >> >>>> >>>>>>>>> >> >>>> >>>>>>>>> That bugs me a lot too. I also use an external USB card and >> >>>> >>>>>>>>> my >> >>>> >>>>>>>>> DAW >> >>>> >>>>>>>>> periodically drops out :( >> >>>> >>>>>>>>> >> >>>> >>>>>>>>> I haven't tried CPU pinning yet though. And perhaps I >> >>>> >>>>>>>>> should >> >>>> >>>>>>>>> try >> >>>> >>>>>>>>> Windows 7. >> >>>> >>>>>>>>> >> >>>> >>>>>>>>> >> >>>> >>>>>>>>> _______________________________________________ >> >>>> >>>>>>>>> vfio-users mailing list >> >>>> >>>>>>>>> <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >>>> >>>>>>>>> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >>>> >>>>>>>>> >> >>>> >>>>>>>> >> >>>> >>>>>>>> >> >>>> >>>>>>>> _______________________________________________ >> >>>> >>>>>>>> vfio-users mailing list >> >>>> >>>>>>>> <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >>>> >>>>>>>> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >>>> >>>>>>>> >> >>>> >>>>>>> >> >>>> >>>>>>> >> >>>> >>>>>>> _______________________________________________ >> >>>> >>>>>>> vfio-users mailing list >> >>>> >>>>>>> <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >>>> >>>>>>> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >>>> >>>>>>> >> >>>> >>>>> >> >>>> >>> >> >>>> >>> >> >>>> >>> >> >>>> >>> _______________________________________________ >> >>>> >>> vfio-users mailing list >> >>>> >>> <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >>>> >>> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >>>> >>> >> >>>> >>> >> >>>> >>> >> >>>> >>> >> >>>> >>> _______________________________________________ >> >>>> >>> vfio-users mailing list >> >>>> >>> <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >>>> >>> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >>>> >>> >> >>>> >>> >> >>>> >>> >> >>>> >>> _______________________________________________ >> >>>> >>> vfio-users mailing list >> >>>> >>> <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >>>> >>> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >>>> >>> >> >>>> >> >> >>>> >> >> >>>> >> >> >>>> >> _______________________________________________ >> >>>> >> vfio-users mailing list >> >>>> >> <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >>>> >> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >>>> >> >> >>>> >> >> >>>> >> >> >>>> >> _______________________________________________ >> >>>> >> vfio-users mailing list >> >>>> >> <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >>>> >> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >>>> >> >> >>>> > >> >>>> > >> >>>> > _______________________________________________ >> >>>> > vfio-users mailing list >> >>>> > <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >>>> > <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >>>> > >> >>> >> >>> >> >> >> >> >> >> >> >> _______________________________________________ >> >> vfio-users mailing list >> >> <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >> >> >> >> >> >> >> _______________________________________________ >> >> vfio-users mailing list >> >> <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> >> <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> >> >> > >> > >> > _______________________________________________ >> > vfio-users mailing list >> > <a href="mailto:vfio-users@redhat.com">vfio-users@redhat.com</a> >> > <a href="https://www.redhat.com/mailman/listinfo/vfio-users" rel="noreferrer" target="_blank">https://www.redhat.com/mailman/listinfo/vfio-users</a> >> > > > </blockquote></div>