[libvirt-users] Processor usage of qemu process.
Dominique Ramaekers
dominique.ramaekers at cometal.be
Fri Mar 13 09:32:14 UTC 2015
Dear Daniel, my XML's:
Note: It seems I was to quick, the Windows 8.1 isn't fixed...
Windows Server 2015 R2
<domain type='kvm' id='146'>
<name>CmsrvAPP2</name>
<uuid>02c5daef-662a-85ba-7291-485118badc64</uuid>
<memory unit='KiB'>3149824</memory>
<currentMemory unit='KiB'>3149824</currentMemory>
<memoryBacking>
<hugepages/>
</memoryBacking>
<vcpu placement='static'>4</vcpu>
<resource>
<partition>/machine</partition>
</resource>
<os>
<type arch='x86_64' machine='pc-i440fx-trusty'>hvm</type>
<boot dev='hd'/>
<boot dev='cdrom'/>
<bootmenu enable='yes'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<cpu mode='custom' match='exact'>
<model fallback='allow'>Westmere</model>
<vendor>Intel</vendor>
<feature policy='require' name='pbe'/>
<feature policy='require' name='rdtscp'/>
<feature policy='require' name='est'/>
<feature policy='require' name='vmx'/>
<feature policy='require' name='ds'/>
<feature policy='require' name='smx'/>
<feature policy='require' name='ss'/>
<feature policy='require' name='vme'/>
<feature policy='require' name='dtes64'/>
<feature policy='require' name='tm2'/>
<feature policy='require' name='ht'/>
<feature policy='require' name='dca'/>
<feature policy='require' name='pcid'/>
<feature policy='require' name='tm'/>
<feature policy='require' name='pdcm'/>
<feature policy='require' name='pdpe1gb'/>
<feature policy='require' name='ds_cpl'/>
<feature policy='require' name='pclmuldq'/>
<feature policy='require' name='xtpr'/>
<feature policy='require' name='acpi'/>
<feature policy='require' name='monitor'/>
</cpu>
<clock offset='localtime'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/kvm-spice</emulator>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw' cache='none'/>
<source file='/var/lib/libvirt/images/poolCmsrvVH2/virtiodrivers.iso'/>
<target dev='hda' bus='ide'/>
<readonly/>
<alias name='ide0-0-0'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw' cache='none'/>
<source file='/var/lib/libvirt/images/poolCmsrvVH2/WIN2012R2.iso'/>
<target dev='hdc' bus='ide'/>
<readonly/>
<shareable/>
<alias name='ide0-1-0'/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
<disk type='file' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source file='/var/lib/libvirt/images/poolCmsrvVH2/CmsrvAPP2.raw'/>
<target dev='vda' bus='virtio'/>
<alias name='virtio-disk0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
</disk>
<controller type='ide' index='0'>
<alias name='ide0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<controller type='usb' index='0'>
<alias name='usb0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'>
<alias name='pci.0'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:d2:40:25'/>
<source bridge='br0'/>
<target dev='vnet1'/>
<model type='virtio'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<serial type='pty'>
<source path='/dev/pts/2'/>
<target port='0'/>
<alias name='serial0'/>
</serial>
<console type='pty' tty='/dev/pts/2'>
<source path='/dev/pts/2'/>
<target type='serial' port='0'/>
<alias name='serial0'/>
</console>
<input type='tablet' bus='usb'>
<alias name='input0'/>
</input>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<graphics type='vnc' port='5902' autoport='yes' listen='127.0.0.1'>
<listen type='address' address='127.0.0.1'/>
</graphics>
<sound model='ich6'>
<alias name='sound0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</sound>
<video>
<model type='vmvga' vram='9216' heads='1'/>
<alias name='video0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
<memballoon model='virtio'>
<alias name='balloon0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</memballoon>
</devices>
<seclabel type='dynamic' model='apparmor' relabel='yes'>
<label>libvirt-02c5daef-662a-85ba-7291-485118badc64</label>
<imagelabel>libvirt-02c5daef-662a-85ba-7291-485118badc64</imagelabel>
</seclabel>
</domain>
Windows 8.1
<domain type='kvm' id='147'>
<name>PCVIRT1</name>
<uuid>2c9c04d7-f86d-df12-da9f-9847ac8b994f</uuid>
<description>Job-processor van Autodesk. Deze PC zal periodiek taken opvragen bij Autodesk Vault en deze taken vervolgens uitvoeren.</description>
<memory unit='KiB'>3145728</memory>
<currentMemory unit='KiB'>524288</currentMemory>
<memoryBacking>
<hugepages/>
</memoryBacking>
<vcpu placement='static'>3</vcpu>
<resource>
<partition>/machine</partition>
</resource>
<os>
<type arch='x86_64' machine='pc-i440fx-trusty'>hvm</type>
<boot dev='hd'/>
</os>
<features>
<acpi/>
<apic/>
<pae/>
</features>
<cpu>
<topology sockets='1' cores='3' threads='1'/>
</cpu>
<clock offset='localtime'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>restart</on_crash>
<devices>
<emulator>/usr/bin/kvm-spice</emulator>
<disk type='file' device='disk'>
<driver name='qemu' type='raw' cache='none'/>
<source file='/var/lib/libvirt/images/poolCmsrvVH2/PCVIRT1.raw'/>
<target dev='hda' bus='ide'/>
<alias name='ide0-0-0'/>
<address type='drive' controller='0' bus='0' target='0' unit='0'/>
</disk>
<disk type='file' device='cdrom'>
<driver name='qemu' type='raw' cache='none'/>
<target dev='hdc' bus='ide'/>
<readonly/>
<alias name='ide0-1-0'/>
<address type='drive' controller='0' bus='1' target='0' unit='0'/>
</disk>
<controller type='ide' index='0'>
<alias name='ide0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
</controller>
<controller type='usb' index='0'>
<alias name='usb0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
</controller>
<controller type='pci' index='0' model='pci-root'>
<alias name='pci.0'/>
</controller>
<interface type='bridge'>
<mac address='52:54:00:bb:7b:4e'/>
<source bridge='br0'/>
<target dev='vnet2'/>
<model type='rtl8139'/>
<alias name='net0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
</interface>
<serial type='pty'>
<source path='/dev/pts/3'/>
<target port='0'/>
<alias name='serial0'/>
</serial>
<console type='pty' tty='/dev/pts/3'>
<source path='/dev/pts/3'/>
<target type='serial' port='0'/>
<alias name='serial0'/>
</console>
<input type='tablet' bus='usb'>
<alias name='input0'/>
</input>
<input type='mouse' bus='ps2'/>
<input type='keyboard' bus='ps2'/>
<graphics type='vnc' port='5903' autoport='yes' listen='127.0.0.1'>
<listen type='address' address='127.0.0.1'/>
</graphics>
<video>
<model type='vmvga' vram='1048576' heads='1'/>
<alias name='video0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</video>
<memballoon model='virtio'>
<alias name='balloon0'/>
<address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
</memballoon>
</devices>
<seclabel type='dynamic' model='apparmor' relabel='yes'>
<label>libvirt-2c9c04d7-f86d-df12-da9f-9847ac8b994f</label>
<imagelabel>libvirt-2c9c04d7-f86d-df12-da9f-9847ac8b994f</imagelabel>
</seclabel>
</domain>
-----Oorspronkelijk bericht-----
Van: Daniel P. Berrange [mailto:berrange at redhat.com]
Verzonden: vrijdag 13 maart 2015 10:24
Aan: Dominique Ramaekers
CC: libvirt-users at redhat.com
Onderwerp: Re: [libvirt-users] Processor usage of qemu process.
On Thu, Mar 12, 2015 at 07:16:56PM +0100, Dominique Ramaekers wrote:
>
> I have been using libvirt for a while now with some linux guest installed. And everything has been working great.
>
> I've got a nice new (used) HP virtual host with 12 x dual core and 48Gb mem. My Windows servers are getting old, so I found it was time to take the next step and also virtualise my Windows systems.
>
> Now I've got two Windows guests on my new host:
> - A Windows 8.1 which runs a Autodesk Job Processor
> - A Windows Server 2012 R2 which runs a Pervasive SQL, Autodesk Vault Server (MSSQL, IIS), Autodesk license server,...
>
> The first is constanly using 30% host-CPU and the second one is using 50% host-CPU. Both guests are using <5% guest CPU...
>
> (Host system load is between 0.1 and 0.3...)
>
> Is it normal Windows guests take up 30% to 50% host CPU resources? The Windows 8.1 is actualy a simpel PC with almost no activity...
>
> Version:
> QEMU emulator version 2.0.0 (Debian 2.0.0+dfsg-2ubuntu1.10), Copyright
> (c) 2003-2008 Fabrice Bellard
If would be helpful if you showed the XML config file for your guests, so we can see what hardware you've configured. Hardware choices can make a big difference to guest performance.
Regards,
Daniel
--
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