[vfio-users] Audio sync issues Windows 10
Brandon Ganem
brandonganem at gmail.com
Tue Dec 20 13:27:42 UTC 2016
MSI-X is enabled on the devices that support it (everything audio related,
video card). The lspci was taken with the VM running and contains "enable+"
so i think that means it's enabled and working.
On Tue, Dec 20, 2016 at 12:46 AM, Eddie Yen <missile0407 at gmail.com> wrote:
> Maybe it's a silly question but,
>
> Have you try add MSI-X support by modify registry on Windows 10 VM?
>
> 2016-12-20 13:06 GMT+08:00 Brandon Ganem <brandonganem at gmail.com>:
>
>> I'm not entirely sure what this tells me, but IRQ usage drops
>> significantly (particularly on "LOC") when not playing back a video. Maybe
>> somebody smarter than I am has a though.
>> The poorly drawn yellow line is roughly when i stopped any video play
>> back in this graph. Time scale is a 15 minute window from collectd's irq
>> monitor.
>> [image: Inline image 1]
>>
>> On Sun, Dec 18, 2016 at 10:33 PM, Brandon Ganem <brandonganem at gmail.com>
>> wrote:
>>
>>> I'm passing through USB, but only a mic is on that for audio. 00:1b.0
>>> (intel built in audio) and nvidia HDMI audio both have the issue.
>>>
>>> On Sat, Dec 17, 2016 at 3:58 PM, Zachary Boley <zboley00 at gmail.com>
>>> wrote:
>>>
>>>> Doesn't look like it but are you passing a USB controller in for it?
>>>> Can't really see how you're using audio
>>>>
>>>> On Dec 16, 2016 2:39 PM, "Brandon Ganem" <brandonganem at gmail.com>
>>>> wrote:
>>>>
>>>>> Hi all,
>>>>> I've got a Windows 10 VM on top of arch linux. It appears that after
>>>>> some period of time my audio / video loses sync for long running videos
>>>>> (youtube for example). Switching audio devices in "sound options" in
>>>>> windows causes the video to sync back up to the audio.
>>>>>
>>>>> The audio does not appear to be distorted, it's almost as if the video
>>>>> slows down by a frame or two and over time that's enough to drop the sync.
>>>>>
>>>>>
>>>>>
>>>>> Here's my XML:
>>>>> <domain type='kvm' xmlns:qemu='http://libvirt.org
>>>>> /schemas/domain/qemu/1.0'>
>>>>> <name>win10_gaming_1</name>
>>>>> <uuid>01bd2ed1-b465-4eba-b6e4-47c6ac8171c6</uuid>
>>>>> <memory unit='KiB'>16777216</memory>
>>>>> <currentMemory unit='KiB'>16777216</currentMemory>
>>>>> <vcpu placement='static'>12</vcpu>
>>>>> <iothreads>2</iothreads>
>>>>> <iothreadids>
>>>>> <iothread id='1'/>
>>>>> <iothread id='2'/>
>>>>> </iothreadids>
>>>>> <cputune>
>>>>> <vcpupin vcpu='0' cpuset='2'/>
>>>>> <vcpupin vcpu='1' cpuset='3'/>
>>>>> <vcpupin vcpu='2' cpuset='4'/>
>>>>> <vcpupin vcpu='3' cpuset='5'/>
>>>>> <vcpupin vcpu='4' cpuset='6'/>
>>>>> <vcpupin vcpu='5' cpuset='7'/>
>>>>> <vcpupin vcpu='6' cpuset='8'/>
>>>>> <vcpupin vcpu='7' cpuset='9'/>
>>>>> <vcpupin vcpu='8' cpuset='12'/>
>>>>> <vcpupin vcpu='9' cpuset='13'/>
>>>>> <vcpupin vcpu='10' cpuset='14'/>
>>>>> <vcpupin vcpu='11' cpuset='15'/>
>>>>> <emulatorpin cpuset='0-1'/>
>>>>> <iothreadpin iothread='1' cpuset='0'/>
>>>>> <iothreadpin iothread='2' cpuset='1'/>
>>>>> <iothreadsched iothreads='2' scheduler='batch'/>
>>>>> </cputune>
>>>>> <os>
>>>>> <type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type>
>>>>> <loader readonly='yes' type='pflash'>/usr/share/edk2.
>>>>> git/ovmf-x64/OVMF_CODE-pure-efi.fd</loader>
>>>>> <nvram template='/usr/share/edk2.git/
>>>>> ovmf-x64/OVMF_VARS-pure-efi.fd'>/var/lib/libvirt/qemu/nvram/
>>>>> win10_gaming_1_VARS.fd</nvram>
>>>>> <boot dev='hd'/>
>>>>> </os>
>>>>> <features>
>>>>> <acpi/>
>>>>> <hyperv>
>>>>> <relaxed state='off'/>
>>>>> <vapic state='off'/>
>>>>> <spinlocks state='off'/>
>>>>> </hyperv>
>>>>> <kvm>
>>>>> <hidden state='on'/>
>>>>> </kvm>
>>>>> </features>
>>>>> <cpu mode='host-passthrough'>
>>>>> <topology sockets='1' cores='6' threads='2'/>
>>>>> </cpu>
>>>>> <clock offset='localtime'>
>>>>> <timer name='hypervclock' present='no'/>
>>>>> </clock>
>>>>> <on_poweroff>destroy</on_poweroff>
>>>>> <on_reboot>restart</on_reboot>
>>>>> <on_crash>destroy</on_crash>
>>>>> <devices>
>>>>> <emulator>/usr/sbin/qemu-system-x86_64</emulator>
>>>>> <disk type='file' device='disk'>
>>>>> <driver name='qemu' type='raw' cache='writethrough'/>
>>>>> <source file='/flash/win_gaming_1.img'/>
>>>>> <target dev='vda' bus='virtio'/>
>>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x09'
>>>>> function='0x0'/>
>>>>> </disk>
>>>>> <disk type='file' device='disk'>
>>>>> <driver name='qemu' type='raw' cache='writethrough'/>
>>>>> <source file='/vmstore/steam/gaming_1/steam_library.img'/>
>>>>> <target dev='vdb' bus='virtio'/>
>>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x0a'
>>>>> function='0x0'/>
>>>>> </disk>
>>>>> <controller type='pci' index='0' model='pci-root'/>
>>>>> <controller type='virtio-serial' index='0'>
>>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x04'
>>>>> function='0x0'/>
>>>>> </controller>
>>>>> <controller type='usb' index='0' model='piix3-uhci'>
>>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x01'
>>>>> function='0x2'/>
>>>>> </controller>
>>>>> <interface type='bridge'>
>>>>> <mac address='52:54:00:a0:41:92'/>
>>>>> <source bridge='br0'/>
>>>>> <model type='virtio'/>
>>>>> <rom bar='off'/>
>>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x02'
>>>>> function='0x0'/>
>>>>> </interface>
>>>>> <input type='mouse' bus='ps2'/>
>>>>> <input type='keyboard' bus='ps2'/>
>>>>> <memballoon model='virtio'>
>>>>> <address type='pci' domain='0x0000' bus='0x00' slot='0x07'
>>>>> function='0x0'/>
>>>>> </memballoon>
>>>>> </devices>
>>>>> <qemu:commandline>
>>>>> <qemu:arg value='-device'/>
>>>>> <qemu:arg value='ioh3420,bus=pci.0,addr=
>>>>> 1c.0,multifunction=on,port=1,chassis=1,id=root.1'/>
>>>>> <qemu:arg value='-device'/>
>>>>> <qemu:arg value='vfio-pci,host=02:00.0,b
>>>>> us=root.1,addr=00.0,multifunction=on,x-vga=on'/>
>>>>> <qemu:arg value='-device'/>
>>>>> <qemu:arg value='vfio-pci,host=02:00.1,b
>>>>> us=root.1,addr=00.1,multifunction=on'/>
>>>>> <qemu:arg value='-device'/>
>>>>> <qemu:arg value='vfio-pci,host=00:14.0,b
>>>>> us=root.1,addr=00.2,multifunction=on'/>
>>>>> <qemu:arg value='-device'/>
>>>>> <qemu:arg value='vfio-pci,host=00:1a.0,b
>>>>> us=root.1,addr=00.3,multifunction=on'/>
>>>>> <qemu:arg value='-device'/>
>>>>> <qemu:arg value='vfio-pci,host=00:1b.0,b
>>>>> us=root.1,addr=00.4,multifunction=on'/>
>>>>> </qemu:commandline>
>>>>> </domain>
>>>>>
>>>>>
>>>>> LSPCI:
>>>>> 02:00.0 VGA compatible controller: NVIDIA Corporation GM206 [GeForce
>>>>> GTX 960] (rev a1) (prog-if 00 [VGA controller])
>>>>> Subsystem: Micro-Star International Co., Ltd. [MSI] Device 3202
>>>>> Physical Slot: 4
>>>>> Flags: bus master, fast devsel, latency 0, IRQ 26, NUMA node 0
>>>>> Memory at fa000000 (32-bit, non-prefetchable) [size=16M]
>>>>> Memory at c0000000 (64-bit, prefetchable) [size=256M]
>>>>> Memory at d0000000 (64-bit, prefetchable) [size=32M]
>>>>> I/O ports at e000 [size=128]
>>>>> Expansion ROM at fb000000 [disabled] [size=512K]
>>>>> Capabilities: [60] Power Management version 3
>>>>> Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
>>>>> Capabilities: [78] Express Legacy Endpoint, MSI 00
>>>>> Capabilities: [100] Virtual Channel
>>>>> Capabilities: [258] L1 PM Substates
>>>>> Capabilities: [128] Power Budgeting <?>
>>>>> Capabilities: [420] Advanced Error Reporting
>>>>> Capabilities: [600] Vendor Specific Information: ID=0001 Rev=1
>>>>> Len=024 <?>
>>>>> Capabilities: [900] #19
>>>>> Kernel driver in use: vfio-pci
>>>>> Kernel modules: nouveau
>>>>>
>>>>> 02:00.1 Audio device: NVIDIA Corporation Device 0fba (rev a1)
>>>>> Subsystem: Micro-Star International Co., Ltd. [MSI] Device 3202
>>>>> Physical Slot: 4
>>>>> Flags: bus master, fast devsel, latency 0, IRQ 51, NUMA node 0
>>>>> Memory at fb080000 (32-bit, non-prefetchable) [size=16K]
>>>>> Capabilities: [60] Power Management version 3
>>>>> Capabilities: [68] MSI: Enable+ Count=1/1 Maskable- 64bit+
>>>>> Capabilities: [78] Express Endpoint, MSI 00
>>>>> Kernel driver in use: vfio-pci
>>>>> Kernel modules: snd_hda_intel
>>>>>
>>>>> 00:1b.0 Audio device: Intel Corporation C610/X99 series chipset HD
>>>>> Audio Controller (rev 05)
>>>>> Subsystem: ASRock Incorporation Device 1151
>>>>> Flags: bus master, fast devsel, latency 0, IRQ 22, NUMA node 0
>>>>> Memory at fb330000 (64-bit, non-prefetchable) [size=16K]
>>>>> Capabilities: [50] Power Management version 2
>>>>> Capabilities: [60] MSI: Enable+ Count=1/1 Maskable- 64bit+
>>>>> Capabilities: [70] Express Root Complex Integrated Endpoint,
>>>>> MSI 00
>>>>> Capabilities: [100] Virtual Channel
>>>>> Kernel driver in use: vfio-pci
>>>>> Kernel modules: snd_hda_intel
>>>>>
>>>>> 00:1d.0 USB controller: Intel Corporation C610/X99 series chipset USB
>>>>> Enhanced Host Controller #1 (rev 05) (prog-if 20 [EHCI])
>>>>> Subsystem: ASRock Incorporation Device 8d26
>>>>> Flags: medium devsel, IRQ 18, NUMA node 0
>>>>> Memory at fb337000 (32-bit, non-prefetchable) [size=1K]
>>>>> Capabilities: [50] Power Management version 2
>>>>> Capabilities: [58] Debug port: BAR=1 offset=00a0
>>>>> Capabilities: [98] PCI Advanced Features
>>>>> Kernel driver in use: vfio-pci
>>>>> Kernel modules: ehci_pci
>>>>>
>>>>> 00:1a.0 USB controller: Intel Corporation C610/X99 series chipset USB
>>>>> Enhanced Host Controller #2 (rev 05) (prog-if 20 [EHCI])
>>>>> Subsystem: ASRock Incorporation Device 8d2d
>>>>> Flags: bus master, medium devsel, latency 0, IRQ 18, NUMA node
>>>>> 0
>>>>> Memory at fb338000 (32-bit, non-prefetchable) [size=1K]
>>>>> Capabilities: [50] Power Management version 2
>>>>> Capabilities: [58] Debug port: BAR=1 offset=00a0
>>>>> Capabilities: [98] PCI Advanced Features
>>>>> Kernel driver in use: vfio-pci
>>>>> Kernel modules: ehci_pci
>>>>>
>>>>> _______________________________________________
>>>>> vfio-users mailing list
>>>>> vfio-users at redhat.com
>>>>> https://www.redhat.com/mailman/listinfo/vfio-users
>>>>>
>>>>>
>>>
>>
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