[libvirt-users] Windows Server 2008 - KVM
Thiago Oliveira
cpv.thiago at gmail.com
Wed May 25 12:36:45 UTC 2016
Hi there!
I have installed a new VM with Win2k8 and the serial virtio driver works
fine. I don´t know why the other VM the BSOD happen!
About the performance, I had the impression that only one core is
used.....PID 8301 is a linux VM with 4 VCPU and 2 GB of RAM...
2016-05-25 3:39 GMT-03:00 Dominique Ramaekers <
dominique.ramaekers at cometal.be>:
>
>
> *Van:* Thiago Oliveira [mailto:cpv.thiago at gmail.com]
> *Verzonden:* dinsdag 24 mei 2016 20:14
> *Aan:* Dominique Ramaekers
> *CC:* libvirt-users at redhat.com
> *Onderwerp:* Re: [libvirt-users] Windows Server 2008 - KVM
>
>
>
> Hi there!
>
>
>
> I will do soon the disk config, but first I will do some labs.
>
>
>
> I´m trying to install the virtio driver to comunicate using qemu-agent but
> when the driver is installed, the BSOD happens (win2k8 R2).
>
> I tried with virtio-drivers version 100, 110 and 117, both happens BSOD.
>
>
>
> Do you has a tip ? :)
>
>
>
> Can’t really help you there… I’ve installed the virtio drivers on numerus
> Windows systems going from Windows-XP to Windows Server 2012R2. Never had
> BSOD…
>
> I do remember having some trouble with the QXL graphics driver on one
> specific version of virtio, but that’s all and that should be resolved…
>
>
>
>
>
> Thanks buddy!
>
>
>
> 2016-05-20 10:23 GMT-03:00 Dominique Ramaekers <
> dominique.ramaekers at cometal.be>:
>
>
>
>
>
> *Van:* Thiago Oliveira [mailto:cpv.thiago at gmail.com]
> *Verzonden:* vrijdag 20 mei 2016 15:07
> *Aan:* Dominique Ramaekers
> *CC:* libvirt-users at redhat.com
> *Onderwerp:* Re: [libvirt-users] Windows Server 2008 - KVM
>
>
>
> Hi there!
>
>
>
> Although the guest has 2GB memory, the windows guest was adjusted to
> support this.
>
>
>
> I guess that the LVM is the best choice! I will save all images to other
> disk and re-build the partition with LVM. Do you recomend to use ext4 or
> zfs ?
>
> You’ll have to convert the qcow to raw, create a LVM-volume (don’t create
> a file system on the volume), and dd the raw tot he LVM volume…
>
>
>
> - About the apparmor, I have my doubts, I will try to disable and see what
> will happen!
>
> - About the tablet input device, I removed! Some forums say that
> consuming idle cpu time. I know… Never could have verivied this…
>
> - About the guest agent, I have installed, but the first service can´t
> start!
>
> The error says: *A timeout was reached (30000 milliseconds) while waiting
> for the QEMU Guest Agent service to connect.*
>
> You’ll have to include the qemu-ga directives in the xml, that should do
> the trick:
>
> <channel type='unix'>
>
> <source mode='bind'/>
>
> <target type='virtio' name='org.qemu.guest_agent.0'/>
>
> </channel>
>
>
>
> [image: Imagem inline 1]
>
>
>
> I´m using the virtio-win-0.1.117.iso, but I don´t know if this is updated.
>
>
>
> Thanks for your reply and your help!
>
>
>
> Thiago Oliveira
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> 2016-05-20 8:31 GMT-03:00 Dominique Ramaekers <
> dominique.ramaekers at cometal.be>:
>
> Please check virtual memory usage in the guest. 2Gb memory is very low. I
> think your Windows guest is ‘swapping’ constantly. This combined with the
> less performant qcow format… Reading and writing to qcow takes up host cpu…
>
>
>
> I don’t go under 3,5Gb for Windows Guests…
>
>
>
> Tip: Take the time to learn LVM. Changing from an image file to LVM really
> pays off. I have a virtual host with RAID10 local storage. Changing to LVM
> gave me more than 25% performance boost.
>
>
>
> For the rest, it seems ok.
>
>
>
> Less important:
>
> I have disabled apparmor security. This was done while using an older
> version of virsh and I had trouble with apparmor. I don’t know if apparmor
> has big performance influence.
>
>
>
> Wasn’t there a tablet input device? Did you delete this device? I think
> it’s better to leave it. It has something to do with mouse usage in
> virt-viewer or vnc…
>
>
>
> Install the guest agent on the guest and insert the needed XML-directives.
> It gives you more possibilities managing your guest like a backup with
> external snapshots.
>
>
>
>
>
>
>
> *Van:* Thiago Oliveira [mailto:cpv.thiago at gmail.com]
> *Verzonden:* vrijdag 20 mei 2016 13:07
> *Aa**n:* Dominique Ramaekers
> *CC:* libvirt-users at redhat.com
> *Onderwerp:* Re: [libvirt-users] Windows Server 2008 - KVM
>
>
>
> Hi there!
>
>
>
> Sure......see below.
>
>
>
> # virsh version
>
> Compiled against library: libvirt 1.3.1
>
> Using library: libvirt 1.3.1
>
> Using API: QEMU 1.3.1
>
> Running hypervisor: QEMU 2.5.0
>
>
>
> # uname -a
>
> Linux 4.4.0-22-generic #40-Ubuntu 16
>
>
>
>
>
> <domain type='kvm' id='8'>
>
> <name>W2k8</name>
>
> <uuid>a148a0b7-eefb-9a5b-8e83-8efaf19f9899</uuid>
>
> <description>None</description>
>
> <memory unit='KiB'>2097152</memory>
>
> <currentMemory unit='KiB'>2097152</currentMemory>
>
> <vcpu placement='static'>2</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='host-passthrough'>
>
> <topology sockets='1' cores='2' 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='qcow2' cache='none' io='native'/>
>
> <source file='/mnt/VM_SAS/w2k8.img'/>
>
> <backingStore/>
>
> <target dev='vda' bus='virtio'/>
>
> <alias name='virtio-disk0'/>
>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x04'
> function='0x0'/>
>
> </disk>
>
> <disk type='file' device='disk'>
>
> <driver name='qemu' type='raw'/>
>
> <source file='/mnt/VM_SAS/second_HD.raw'/>
>
> <backingStore/>
>
> <target dev='vdb' bus='virtio'/>
>
> <alias name='virtio-disk1'/>
>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x06'
> function='0x0'/>
>
> </disk>
>
> <disk type='file' device='cdrom'>
>
> <driver name='qemu' type='raw'/>
>
> <backingStore/>
>
> <target dev='hda' bus='ide' tray='open'/>
>
> <readonly/>
>
> <alias name='ide0-1-1'/>
>
> <address type='drive' controller='0' bus='1' target='0' unit='1'/>
>
> </disk>
>
> <controller type='pci' index='0' model='pci-root'>
>
> <alias name='pci.0'/>
>
> </controller>
>
> <controller type='ide' index='0'>
>
> <alias name='ide'/>
>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x01'
> function='0x1'/>
>
> </controller>
>
> <controller type='usb' index='0'>
>
> <alias name='usb'/>
>
> <address type='pci' domain='0x0000' bus='0x00' slot='0x01'
> function='0x2'/>
>
> </controller>
>
> <interface type='network'>
>
> <mac address='52:54:00:c3:c9:f3'/>
>
> <source network='network_win' bridge='virbr0'/>
>
> <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/1'/>
>
> <target port='0'/>
>
> <alias name='serial0'/>
>
> </serial>
>
> <console type='pty' tty='/dev/pts/1'>
>
> <source path='/dev/pts/1'/>
>
> <target type='serial' port='0'/>
>
> <alias name='serial0'/>
>
> </console>
>
> <input type='mouse' bus='ps2'/>
>
> <input type='keyboard' bus='ps2'/>
>
> <graphics type='vnc' port='5901' autoport='yes' listen='0.0.0.0'>
>
> <listen type='address' address='0.0.0.0'/>
>
> </graphics>
>
> <video>
>
> <model type='cirrus' vram='16384' 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-a148a0b7-eefb-9a5b-8e83-8efaf19f9899</label>
>
> <imagelabel>libvirt-a148a0b7-eefb-9a5b-8e83-8efaf19f9899</imagelabel>
>
> </seclabel>
>
> </domain>
>
>
>
>
>
>
>
>
>
>
>
>
>
> 2016-05-20 3:57 GMT-03:00 Dominique Ramaekers <
> dominique.ramaekers at cometal.be>:
>
>
>
>
>
> *Van:* libvirt-users-bounces at redhat.com [mailto:
> libvirt-users-bounces at redhat.com] *Namens *Thiago Oliveira
> *Verzonden:* vrijdag 20 mei 2016 4:09
> *Aan:* libvirt-users at redhat.com
> *Onderwerp:* [libvirt-users] Windows Server 2008 - KVM
>
>
>
> Hi folks!
>
>
>
> When I start the Windows Server 2008 guest, the host cpu grown up
> the utilization and the host load average too. Are there some tips to
> use Windows Server with libvirt?
>
>
>
> Thanks,
>
> Thiago
>
>
>
>
>
> Could you send the XML and the result of ‘virsh version’?
>
>
>
>
>
>
>
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