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KVMゲストのグラフィックパフォーマンスが低い

私はKVM初心者であり、グラフィックパフォーマンスが低下しています。

Host： Asus UX305FA ミニUbuntu 17.10 with i3ウィンドウマネージャー。

ゲスト1：Windows 10

win10.xmlの内容は次のとおりです。

<domain type='kvm'>
  <name>win10</name>
  <uuid>efd921e8-a8d9-4b22-8ada-3dd81afef678</uuid>
  <memory unit='KiB'>2097152</memory>
  <currentMemory unit='KiB'>1048576</currentMemory>
  <vcpu placement='static'>2</vcpu>
  <os>
    <type Arch='x86_64' machine='pc-i440fx-artful'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <hyperv>
      <relaxed state='on'/>
      <vapic state='on'/>
      <spinlocks state='on' retries='8191'/>
    </hyperv>
    <vmport state='off'/>
  </features>
  <cpu mode='Host-model' check='partial'>
    <model fallback='allow'/>
  </cpu>
  <clock offset='localtime'>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='hpet' present='no'/>
    <timer name='hypervclock' present='yes'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <pm>
    <suspend-to-mem enabled='no'/>
    <suspend-to-disk enabled='no'/>
  </pm>
  <devices>
    <emulator>/usr/bin/kvm-spice</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source file='/mnt/windata/KVM/Windows10slim.qcow2'/>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <source file='/mnt/windata/KVM/virtio-win-0.1.141.iso'/>
      <target dev='hdb' bus='ide'/>
      <readonly/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>
    <controller type='pci' index='0' model='pci-root'/>
    <controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </controller>
    <controller type='usb' index='0' model='nec-xhci'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </controller>
    <interface type='network'>
      <mac address='52:54:00:e5:34:ca'/>
      <source network='default'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <channel type='spicevmc'>
      <target type='virtio' name='com.redhat.spice.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <input type='tablet' bus='usb'>
      <address type='usb' bus='0' port='1'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='spice' autoport='yes'>
      <listen type='address'/>
      <image compression='off'/>
    </graphics>
    <sound model='ich6'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </sound>
    <video>
      <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <redirdev bus='usb' type='spicevmc'>
      <address type='usb' bus='0' port='2'/>
    </redirdev>
    <redirdev bus='usb' type='spicevmc'>
      <address type='usb' bus='0' port='3'/>
    </redirdev>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
    </memballoon>
  </devices>
</domain>

ゲスト2：Lubuntu 17.10

lubuntu.xmlの内容は次のとおりです。

<domain type='kvm'>
  <name>lubuntu</name>
  <uuid>077f9473-9834-472f-95e2-a101fb8e2867</uuid>
  <memory unit='KiB'>1048576</memory>
  <currentMemory unit='KiB'>1048576</currentMemory>
  <vcpu placement='static'>2</vcpu>
  <os>
    <type Arch='x86_64' machine='pc-i440fx-artful'>hvm</type>
    <boot dev='hd'/>
  </os>
  <features>
    <acpi/>
    <apic/>
    <vmport state='off'/>
  </features>
  <cpu mode='custom' match='exact' check='partial'>
    <model fallback='allow'>Broadwell-noTSX</model>
  </cpu>
  <clock offset='utc'>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='hpet' present='no'/>
  </clock>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>restart</on_crash>
  <pm>
    <suspend-to-mem enabled='no'/>
    <suspend-to-disk enabled='no'/>
  </pm>
  <devices>
    <emulator>/usr/bin/kvm-spice</emulator>
    <disk type='file' device='disk'>
      <driver name='qemu' type='qcow2'/>
      <source file='/var/lib/libvirt/images/lubuntu.qcow2'/>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
      <driver name='qemu' type='raw'/>
      <target dev='hda' bus='ide'/>
      <readonly/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <controller type='pci' index='0' model='pci-root'/>
    <controller type='ide' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='virtio-serial' index='0'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </controller>
    <controller type='usb' index='0' model='nec-xhci'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
    </controller>
    <interface type='network'>
      <mac address='52:54:00:f9:dc:35'/>
      <source network='default'/>
      <model type='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
    </interface>
    <serial type='pty'>
      <target port='0'/>
    </serial>
    <console type='pty'>
      <target type='serial' port='0'/>
    </console>
    <channel type='spicevmc'>
      <target type='virtio' name='com.redhat.spice.0'/>
      <address type='virtio-serial' controller='0' bus='0' port='1'/>
    </channel>
    <input type='tablet' bus='usb'>
      <address type='usb' bus='0' port='1'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='spice' autoport='yes'>
      <listen type='address'/>
      <image compression='off'/>
    </graphics>
    <sound model='ich6'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </sound>
    <video>
      <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <redirdev bus='usb' type='spicevmc'>
      <address type='usb' bus='0' port='2'/>
    </redirdev>
    <redirdev bus='usb' type='spicevmc'>
      <address type='usb' bus='0' port='3'/>
    </redirdev>
    <memballoon model='virtio'>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </memballoon>
  </devices>
</domain>

ディスプレイとしてSpiceを使用し、ビデオをQXLに設定します。 Spiceエージェント/クライアントを両方のゲストにインストールしました。

パフォーマンスの低下は、2人のゲストとほぼ同じです。経験が遅れており、YouTubeビデオを再生すると多くの涙が出ます。また、解像度はゲストウィンドウサイズに基づいて自動的に変更されません。

同じホストで、VirtualboxでWin10 VMを実行すると、はるかに優れたグラフィックパフォーマンスとゲストウィンドウの動作に基づく自動解像度が得られます。

グラフィック性能を改善するにはどうすればよいですか？

Update：@ byte-commanderが提案したように、Debian 9で新しいVMを作成しました。この場合、自動解決が機能しますしかし、グラフィックのパフォーマンスはまだ不十分です。

ゲスト3：Debian 9ここにdebian9.xmlの内容があります：

<domain type='kvm'>
<name>debian9</name>
<uuid>ca3ffe36-f956-4d7a-8dca-f8bd9fba123b</uuid>
<memory unit='KiB'>2097152</memory>
<currentMemory unit='KiB'>2097152</currentMemory>
<vcpu placement='static'>2</vcpu>
<os>
    <type Arch='x86_64' machine='pc-i440fx-artful'>hvm</type>
    <boot dev='hd'/>
</os>
<features>
    <acpi/>
    <apic/>
    <vmport state='off'/>
</features>
<cpu mode='custom' match='exact' check='partial'>
    <model fallback='allow'>Broadwell-noTSX</model>
</cpu>
<clock offset='utc'>
    <timer name='rtc' tickpolicy='catchup'/>
    <timer name='pit' tickpolicy='delay'/>
    <timer name='hpet' present='no'/>
</clock>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<pm>
    <suspend-to-mem enabled='no'/>
    <suspend-to-disk enabled='no'/>
</pm>
<devices>
    <emulator>/usr/bin/kvm-spice</emulator>
    <disk type='file' device='disk'>
    <driver name='qemu' type='qcow2'/>
    <source file='/var/lib/libvirt/images/debian9.qcow2'/>
    <target dev='vda' bus='virtio'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
    </disk>
    <disk type='file' device='cdrom'>
    <driver name='qemu' type='raw'/>
    <target dev='hda' bus='ide'/>
    <readonly/>
    <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <controller type='usb' index='0' model='ich9-ehci1'>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x7'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci1'>
    <master startport='0'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0' multifunction='on'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci2'>
    <master startport='2'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x1'/>
    </controller>
    <controller type='usb' index='0' model='ich9-uhci3'>
    <master startport='4'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x2'/>
    </controller>
    <controller type='pci' index='0' model='pci-root'/>
    <controller type='ide' index='0'>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
    </controller>
    <controller type='virtio-serial' index='0'>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
    </controller>
    <interface type='network'>
    <mac address='52:54:00:54:cd:79'/>
    <source network='default'/>
    <model type='virtio'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x03' 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>
    <channel type='spicevmc'>
    <target type='virtio' name='com.redhat.spice.0'/>
    <address type='virtio-serial' controller='0' bus='0' port='2'/>
    </channel>
    <input type='tablet' bus='usb'>
    <address type='usb' bus='0' port='1'/>
    </input>
    <input type='mouse' bus='ps2'/>
    <input type='keyboard' bus='ps2'/>
    <graphics type='spice' autoport='yes' listen='127.0.0.1'>
    <listen type='address' address='127.0.0.1'/>
    </graphics>
    <sound model='ich6'>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </sound>
    <video>
    <model type='qxl' ram='65536' vram='65536' vgamem='16384' heads='1' primary='yes'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
    </video>
    <redirdev bus='usb' type='spicevmc'>
    <address type='usb' bus='0' port='2'/>
    </redirdev>
    <redirdev bus='usb' type='spicevmc'>
    <address type='usb' bus='0' port='3'/>
    </redirdev>
    <memballoon model='virtio'>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
    </memballoon>
</devices>
</domain>

更新2：inxiの出力が追加され、Debian RAMのVMが2GBに追加されました。

ホストinxi -Fxz：

System:    Host: leaf Kernel: 4.15.0-041500-generic x86_64 bits: 64 gcc: 7.2.0 Desktop: i3 4.13
        Distro: Ubuntu 17.10
Machine:   Device: laptop System: ASUSTeK product: UX305FA v: 1.0 serial: N/A
        Mobo: ASUSTeK model: UX305FA v: 1.0 serial: N/A
        UEFI [Legacy]: American Megatrends v: UX305FA.213 date: 10/12/2015
Battery    BAT0: charge: 37.6 Wh 95.6% condition: 39.3/45.0 Wh (87%) model: ASUSTeK ASUS status: Discharging
CPU:       Dual core Intel Core M-5Y10c (-HT-MCP-) Arch: Broadwell rev.4 cache: 4096 KB
        flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx) bmips: 3990
        clock speeds: max: 2000 MHz 1: 802 MHz 2: 798 MHz 3: 798 MHz 4: 798 MHz
Graphics:  Card: Intel HD Graphics 5300 bus-ID: 00:02.0
        Display Server: X.Org 1.19.5 drivers: modesetting (unloaded: fbdev,vesa)
        Resolution: [email protected], [email protected]
        OpenGL: renderer: Mesa DRI Intel HD Graphics 5300 (Broadwell GT2)
        version: 4.5 Mesa 17.2.8 Direct Render: Yes
Audio:     Card-1 Intel Wildcat Point-LP High Definition Audio Controller driver: snd_hda_intel bus-ID: 00:1b.0
        Card-2 Intel Broadwell-U Audio Controller driver: snd_hda_intel bus-ID: 00:03.0
        Card-3 Blue Microphones Yeti Stereo Microphone driver: USB Audio usb-ID: 001-021
        Sound: Advanced Linux Sound Architecture v: k4.15.0-041500-generic
Network:   Card: Intel Wireless 7265 driver: iwlwifi bus-ID: 02:00.0
        IF: wlp2s0 state: up mac: <filter>
Drives:    HDD Total Size: 384.1GB (49.1% used)
        ID-1: /dev/sda model: Micron_M600_MTFD size: 256.1GB temp: 39C
        ID-2: /dev/sdb model: Name n/a size: 128.0GB temp: 0C
Partition: ID-1: / size: 40G used: 21G (55%) fs: ext4 dev: /dev/sda7
        ID-2: swap-1 size: 16.97GB used: 0.61GB (4%) fs: swap dev: /dev/sda6
RAID:      No RAID devices: /proc/mdstat, md_mod kernel module present
Sensors:   System Temperatures: cpu: 44.0C mobo: 27.8C
        Fan Speeds (in rpm): cpu: 25500
Info:      Processes: 238 Uptime: 13:58 Memory: 4391.3/7877.2MB Init: systemd runlevel: 5 Gcc sys: 7.2.0
        Client: Shell (bash 4.4.121) inxi: 2.3.37

ゲストDebian 9 inxi -Fxz：

System:    Host: debian Kernel: 4.9.0-6-AMD64 x86_64 (64 bit gcc: 6.3.0) Desktop: Gnome 3.22.3 (Gtk 3.22.11-1)
        Distro: Debian GNU/Linux 9 (stretch)
Machine:   Device: qemu System: QEMU product: Standard PC (i440FX + PIIX 1996) v: pc-i440fx-artful
        Mobo: N/A model: N/A BIOS: Sea v: 1.10.2-1ubuntu1 date: 04/01/2014
CPU(s):    2 Single core Intel Core (Broadwell no TSX)s (-HT-SMP-) cache: 32768 KB
        flags: (lm nx sse sse2 sse3 sse4_1 sse4_2 ssse3) bmips: 3990
        clock speeds: max: 997 MHz 1: 997 MHz 2: 997 MHz
Graphics:  Card: Red Hat QXL paravirtual graphic card bus-ID: 00:02.0
        Display Server: X.org 1.19.2 driver: N/A tty size: 211x54 Advanced Data: N/A for root
Audio:     Card Intel 82801FB/FBM/FR/FW/FRW (ICH6 Family) High Definition Audio Controller
        driver: snd_hda_intel bus-ID: 00:04.0
        Sound: Advanced Linux Sound Architecture v: k4.9.0-6-AMD64
Network:   Card: Red Hat Virtio network device driver: virtio-pci v: 1 port: c0a0 bus-ID: 00:03.0
        IF: ens3 state: up speed: -1 duplex: unknown mac: <filter>
Drives:    HDD Total Size: 10.7GB (51.0% used)
        ID-1: /dev/vda model: N/A size: 10.7GB
Partition: ID-1: / size: 8.8G used: 4.2G (50%) fs: ext4 dev: /dev/vda1
        ID-2: swap-1 size: 1.07GB used: 0.00GB (0%) fs: swap dev: /dev/vda5
Sensors:   None detected - is lm-sensors installed and configured?
Info:      Processes: 156 Uptime: 26 min Memory: 1430.5/2004.2MB Init: systemd runlevel: 5 Gcc sys: N/A
        Client: Shell (bash 4.4.121) inxi: 2.3.5
virtualboxvirtualizationperformancekvmspice
5
Christian Toffolo

Ubuntu 18.04にアップグレードすると、グラフィックパフォーマンスの低下が解決されました。

0
Christian Toffolo