thr3ads.net - libvirt users - Re: [libvirt-users] Processor usage of qemu process. [Mar 2015]

If this information is useful, please help other people find it:
Share via:

Dominique Ramaekers

2015-Mar-12 18:16 UTC

[libvirt-users] Processor usage of qemu process.

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

Dominique Ramaekers

2015-Mar-13 08:25 UTC

head link

Re: [libvirt-users] Processor usage of qemu process.

I found a fix for the Windows 8.1 guest by changing the xml like:

<model type='vmvga' vram='1048576' heads='1'/>

Instead of 

<model type='vga' vram='1048576' heads='1'/>

If someone knows a fix for the Windows Server 2015 R2 guest, I would appreciate
it...

-----Oorspronkelijk bericht-----
Van: Dominique Ramaekers 
Verzonden: donderdag 12 maart 2015 19:17
Aan: libvirt-users@redhat.com
Onderwerp: Processor usage of qemu process.


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

Daniel P. Berrange

2015-Mar-13 09:23 UTC

head link

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
-- 
|: http://berrange.com      -o-    http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org              -o-             http://virt-manager.org :|
|: http://autobuild.org       -o-         http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org       -o-       http://live.gnome.org/gtk-vnc :|

Dominique Ramaekers

2015-Mar-13 09:32 UTC

head link

Re: [libvirt-users] Processor usage of qemu process.

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@redhat.com] 
Verzonden: vrijdag 13 maart 2015 10:24
Aan: Dominique Ramaekers
CC: libvirt-users@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
-- 
|: http://berrange.com      -o-    http://www.flickr.com/photos/dberrange/ :|
|: http://libvirt.org              -o-             http://virt-manager.org :|
|: http://autobuild.org       -o-         http://search.cpan.org/~danberr/ :|
|: http://entangle-photo.org       -o-       http://live.gnome.org/gtk-vnc :|

Seemingly Similar Threads

Search for more reasonably related threads

libvirt users - Mar 2015 - Re: Processor usage of qemu process.

[libvirt-users] Processor usage of qemu process.

Re: [libvirt-users] Processor usage of qemu process.

Re: [libvirt-users] Processor usage of qemu process.

Re: [libvirt-users] Processor usage of qemu process.

Seemingly Similar Threads