On 4/9/19 4:51 AM, Dario Lesca wrote:
On a i7+16Gb+SSD notebook of a my friend I have install Fedora 29
workstation (all work fine! ... thank to all!)
and into qemu/kvm/libvirtd via virt-manager I have install a win10pro
with all virtio driver (disk, network, ecc..).
After few days my friend say me that the win10 is slow and less
efficient than same installation on another PC with VirtualBox.
He told me "virtualbox is better and faster"
I have heard this statement in other cases in the past and the only
solution (sig!) was to replace qemu with virtualbox.
There is some other solution to optimize qemu/kvm on Fedora to increase
the performance for win10 VM?
Someone has some performance comparison between the two virtualization
system?
Many thanks
--
Dario Lesca
(inviato dal mio Linux Fedora 29 Workstation)
Hi Dario,
Keep in mind that Windows 10 runs at about 1/2 the speed that
Fedora runs at. No fooling. Windows 10 is a dog. If you
were to install Windows 10 natively on your machine it
would only run about 10% faster than it does in qemu-kvm.
KVM (Kernel Virtual Machine) is know for its performance
as it works at the kernel level.
So, unless you really goofed up your VM's configuration, the
problem is going to be Windows 10 itself. I will attach my
Windows 10 XML file at the end of this letter:
Here are some sites for speeding up Windows 10:
https://fossbytes.com/speed-up-windows-performance-tips/
https://www.cnet.com/news/black-hole-picture-revealed-first-look-from-across-the-universe/
HTH,
-T
Oh wow. I managed to get through this entire letter without calling it
Windows Nein. Opps, I just did. Rats!
<!--
WARNING: THIS IS AN AUTO-GENERATED FILE. CHANGES TO IT ARE LIKELY TO BE
OVERWRITTEN AND LOST. Changes to this xml configuration should be made
using:
virsh edit KVM-W10
or other application using the libvirt API.
-->
<domain type='kvm'>
<name>KVM-W10</name>
<uuid>08acc96b-e96d-4ab7-afd0-6d6f25c6a731</uuid>
<memory unit='KiB'>4194304</memory>
<currentMemory unit='KiB'>4194304</currentMemory>
<vcpu placement='static'>2</vcpu>
<os>
<type arch='x86_64' machine='pc-i440fx-2.10'>hvm</type>
</os>
<features>
<acpi/>
<apic/>
<hyperv>
<relaxed state='on'/>
<vapic state='on'/>
<spinlocks state='on' retries='8191'/>
</hyperv>
<vmport state='off'/>
</features>
<cpu mode='custom' match='exact' check='partial'>
<model fallback='allow'>Nehalem</model>
</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>destroy</on_crash>
<pm>
<suspend-to-mem enabled='no'/>
<suspend-to-disk enabled='no'/>
</pm>
<devices>
<emulator>/usr/bin/qemu-kvm</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='raw'/>
<source file='/home/kvm/KVM-W10.img'/>
<target dev='hda' bus='ide'/>
<boot order='2'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw'/>
<source file='/home/kvm/Win10_1809_English_x64.iso'/>
<target dev='sda' bus='sata'/>
<readonly/>
<boot order='1'/>
<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>
<controller type='sata' index='0'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04'
function='0x0'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:37:3e:30'/>
<source bridge='br0'/>
<model type='rtl8139'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03'
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='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' port='5906' autoport='no'>
<listen type='address'/>
<image compression='off'/>
</graphics>
<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>
<redirdev bus='usb' type='spicevmc'>
<address type='usb' bus='0' port='4'/>
</redirdev>
<memballoon model='virtio'>
<address type='pci' domain='0x0000' bus='0x00' slot='0x07'
function='0x0'/>
</memballoon>
</devices>
</domain>
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