[libvirt-users] Processor usage of qemu process.
Dominique Ramaekers
dominique.ramaekers at cometal.be
Fri Mar 13 10:22:45 UTC 2015
Spice seems to be doing the trick... Thanks a lot!
The tablet isn't removed or changed yet. I'll first do a follow up of the spice before doing that...
How do I enable the enlightenment timer feature? I can't seem to find it in the xml-doc's...
-----Oorspronkelijk bericht-----
Van: Andrey Korolyov [mailto:andrey at xdel.ru]
Verzonden: vrijdag 13 maart 2015 10:59
Aan: Daniel P. Berrange
CC: Dominique Ramaekers; libvirt-users at redhat.com
Onderwerp: Re: [libvirt-users] Processor usage of qemu process.
On Fri, Mar 13, 2015 at 12:35 PM, Daniel P. Berrange <berrange at redhat.com> wrote:
> On Fri, Mar 13, 2015 at 10:32:14AM +0100, Dominique Ramaekers wrote:
>> 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>
>
> The USB tablet could be a culprint, as could the choice of video mode.
>
> I'd suggest that you want to install the QXL video driver, and setup
> SPICE instead of VNC, along with the SPICE guest agent. This gives a
> much better performing graphics layer, and better performing mouse.
> instead of the USB tablet which is known to have high CPU cost.
>
> Regards,
> Daniel
There is none of enlightenment timer features enabled, I`d suggest to start fixing the issue by adding them in the config. USB tablet is a great problem too for a generated additional workload in idle, though
usb3 tablet connection results in much lower cpu consumption than usb2.
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