Displaying 20 results from an estimated 2400 matches similar to: "Fwd: Hotadd memory and hotplug cpu"
2012 Jan 03
1
Hotplug/hotadd functionality of libvirt?
Hello,
First of all, happy new year!
I am interested in the hot plugging facilities of libvirt, in particular
in what qemu calls 'hot add' of network interface cards. (And also the
reverse: hot unplugging/removing of NICs.)
I think I am overlooking something, but so far the best I have been able
to find is:
http://libvirt.org/sources/virshcmdref/html/
and it is not entirely clear
2014 Jan 30
2
Re: Dynamically setting permanent memory libvirt-lxc
Eric, thank you for your response. Virsh memtune, setmaxmem and setmem won't survive a reboot. I'm hoping to find a solution that can survive reboot.
On Thursday, January 30, 2014 11:36 AM, Eric Blake <eblake@redhat.com> wrote:
On 01/30/2014 10:11 AM, mallu mallu wrote:
> I'm trying to permanently change memory allocation for a libvirt-lxc domain. So far I tried
2020 Feb 14
3
can hotplug vcpus to running Windows 10 guest, but not unplug
Hi,
i'm playing a bit around with vcpus.
My guest is Windows 10 1903.
This is the excerpt from the config:
...
<vcpu placement='static' current='2'>4</vcpu>
<vcpus>
<vcpu id='0' enabled='yes' hotpluggable='no'/>
<vcpu id='1' enabled='yes' hotpluggable='yes'/>
<vcpu id='2'
2020 Feb 14
0
Re: can hotplug vcpus to running Windows 10 guest, but not unplug
On Fri, Feb 14, 2020 at 16:05:00 +0100, Lentes, Bernd wrote:
> Hi,
>
> i'm playing a bit around with vcpus.
> My guest is Windows 10 1903.
> This is the excerpt from the config:
> ...
> <vcpu placement='static' current='2'>4</vcpu>
> <vcpus>
> <vcpu id='0' enabled='yes' hotpluggable='no'/>
>
2009 Feb 09
3
hotplug vcpu problem to Centos 5.2 DomU
My dom0 is uing Centos 5.2 x64. I have just upgraded Xen from 3.3.0 to
3.3.1. After upgraded, I find that I cannot hotplug additional vcpu anymore.
I have a domU "linux1" which is a paravirtualized vm with centos 5.2. I try
to "xm vcpu-set linux1 4", it does not have any error message, but those
vcpu cannot be displayed. I also tried to add vcpu using "virsh setvcpus
2010 Aug 06
5
[PATCH] GSoC 2010 - Memory hotplug support for Xen guests - second fully working version - once again
Hi,
I am sending this e-mail once again because it probably
has been lost in abyss of Xen-devel/LKLM list.
Here is the second version of memory hotplug support
for Xen guests patch. This one cleanly applies to
git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen.git
repository, xen/memory-hotplug head.
Changes:
- /sys/devices/system/memory/probe interface has been removed;
2015 Jan 08
0
CPU Hot Plug/Unplug with KVM on CentOS
Hello,
I'm trying to plug and unplug cpus with a host CentOS 7 on a guest machine
with CentOS too. I have created the guest with virt-install command,
modified my domxml to have maximum 4 vcpus and updated the current cpu to 2.
After that I open the virsh console, and used command setvcpus to
add/remove cpus. I was able to increase the vcpu count until 4 but can't
increase it after 4 as
2015 Apr 13
2
Re: CPU Resource Reservation using KVM
On 4/13/2015 1:18 PM, Kashyap Chamarthy wrote:
> On Mon, Apr 13, 2015 at 12:14:12PM +0530, Jatin Davey wrote:
>> Hi All
>>
>> I am new to KVM world. I have been using VMware for about a year.
>>
>> In VMware world we can reserve cpu resources for a VM. Say for instance if
>> we need 4 vCPUs with a total of 8000 GHz then we can mention this
>>
2015 Apr 13
0
Re: CPU Resource Reservation using KVM
On Mon, Apr 13, 2015 at 01:41:59PM +0530, Jatin Davey wrote:
> On 4/13/2015 1:18 PM, Kashyap Chamarthy wrote:
> >On Mon, Apr 13, 2015 at 12:14:12PM +0530, Jatin Davey wrote:
> >>Hi All
> >>
> >>I am new to KVM world. I have been using VMware for about a year.
> >>
> >>In VMware world we can reserve cpu resources for a VM. Say for instance if
2011 Oct 21
1
virsh modified option... alternative..
Hi All,
I am new to libvirt, i wander how we can achieve below objective, i
read through a lot from libvirt.org but couldn't found any thing solid
something equivalent to this:-
virsh dumpxml dom > /tmp/dom.xml
$EDITOR /tmp/dom.xml && virsh define /tmp/dom.xml
What i try to achieve is to have one management server that install
with libvirt in place then we can use libvirt
2014 Nov 05
2
setvcpus libvirt 1.2.9
Hello.
I'm struggeling a little bit with the setvcpus command. I'm trying now
to get this running for a linux VM. Here is what i have:
<vcpu placement='auto' current='2'>4</vcpu>
Now the VM is starting with 2 CPUs. When i try to increase the number of
CPUs i get:
setvcpus dev --guest 4
error: invalid argument: requested vcpu count is greater than the count
2014 Jan 30
2
Dynamically setting permanent memory libvirt-lxc
I'm trying to permanently change memory allocation for a libvirt-lxc domain. So far I tried changing memory in memory.limit_in_bytes under /cgroup/memory/libvirt/lxc/<container>/. This didn't help. It appears that libvirt is not reading changes in cgroup.
My requirements are
1) Be able to dynamically change memory of a LXC domain without reboot
2) The memory change must survive
2014 Nov 05
0
Re: setvcpus libvirt 1.2.9
On Wed, Nov 05, 2014 at 11:35:37AM +0100, Thomas Stein wrote:
>Hello.
>
>I'm struggeling a little bit with the setvcpus command. I'm trying now
>to get this running for a linux VM. Here is what i have:
>
> <vcpu placement='auto' current='2'>4</vcpu>
>
>Now the VM is starting with 2 CPUs. When i try to increase the number of
>CPUs i
2014 Nov 05
2
Re: setvcpus libvirt 1.2.9
Am 05.11.14 11:48, schrieb Martin Kletzander:
> On Wed, Nov 05, 2014 at 11:35:37AM +0100, Thomas Stein wrote:
>>Hello.
>>
>>I'm struggeling a little bit with the setvcpus command. I'm trying now
>>to get this running for a linux VM. Here is what i have:
>>
>> <vcpu placement='auto' current='2'>4</vcpu>
>>
>>Now
2013 Aug 09
3
Re: state of setvcpus
Am 09.08.13 15:09, schrieb Eric Blake:
> On 08/09/2013 06:26 AM, Thomas Stein wrote:
>> Hello.
>>
>> Does someone know in what state setvcpu command is?
>>
>> I get:
>>
>> virsh # setvcpus gentookvm 4
>> error: internal error: cannot change vcpu count of this domain
>>
>> and
>>
>> error : qemuDomainHotplugVcpus:4087 :
2014 Nov 05
1
Re: setvcpus --guest on windows
On 11/05/2014 10:50 AM, Thomas Stein wrote:
> Am 04.11.14 17:55, schrieb Thomas Stein:
>> Hello.
>>
>> Just a quick question. Is "setvcpus $windowsVM --guest 4" supposed to
>> work? I have qemu-guest-agent (1.6.something) running inside a windows7
>> vm but all i get is:
>>
>> virsh # setvcpus windows7 --guest 4
>> error: invalid
2013 May 28
2
About the change of a VM's vcpu count in runtime?
Hi,
We know that there is a command "setvcpus" in virsh used to "change
number of virtual CPUs", now we just have the need to change vcpu count
dynamically for a running VM, so I tried this command (the vcpu count is
2 in the VM xml file), below is the result:
virsh # setvcpus 3 --count 4
error: invalid argument: requested vcpus is greater than max allowable
vcpus for the
2014 Nov 04
2
setvcpus --guest on windows
Hello.
Just a quick question. Is "setvcpus $windowsVM --guest 4" supposed to
work? I have qemu-guest-agent (1.6.something) running inside a windows7
vm but all i get is:
virsh # setvcpus windows7 --guest 4
error: invalid argument: requested vcpu count is greater than the count
of enabled vcpus in the domain: 4 > 1
The xml file looks like this:
<vcpu placement='static'
2013 Aug 09
0
Re: state of setvcpus
On 08/09/2013 06:26 AM, Thomas Stein wrote:
> Hello.
>
> Does someone know in what state setvcpu command is?
>
> I get:
>
> virsh # setvcpus gentookvm 4
> error: internal error: cannot change vcpu count of this domain
>
> and
>
> error : qemuDomainHotplugVcpus:4087 : internal error: cannot change vcpu
> count of this domain
>
> Does this work for
2013 Aug 09
0
Re: state of setvcpus
On 08/09/2013 09:01 AM, Thomas Stein wrote:
>> Meanwhile, you can try using 'setvcpus gentookvm
>> --guest 4' to use the guest agent (assuming you have qemu-ga running in
>> the guest, and the proper plumbing of the guest agent channel in your
>> domain XML) to use the guest to take vcpus on- or offline.
>
> Tried that with no luck so far.
>
> virsh