similar to: can virsh set the cpuset attribute of <vcpu ..> (CPU Allocation) ?

<font size=2 face="sans-serif">We have just seen libvirt ending up in an inconsistent state : a shut off transient domain.</font> <br><font size=2 face="sans-serif">&nbsp;</font> <br><font size=2 face="sans-serif">Has anyone seen this before ?</font> <br> <br><font size=2

Hi, I have found the cpu time partitioning based on cpu shares weights not very intuitive. On RHEL64, I deployed two qemu/kvm VMs VM1 with 1 vcpu and 512 cpu shares VM2 with 2 vcpus and 1024 cpu shares I pinned their vcpus to specific host pcpus: VM1 vcpu 0 to host pcpu1 VM2 vcpu 0 to host pcpu1, VM2 vcpu 1 to host pcpu2 I executed inside the VMs a simple process that consume all

Apologies as this is is not a specific libvirt question. Is qemu-img convert compatible with thin-provisioned LVs as targets ? I wanted to convert a file-based image to a LV image where the file-based image has a capacity much larger than the actual data it contains, so it has a small footprint on disk (either a qcow2 or a raw, but sparse, image). If I use qemu-img convert -O raw ... with a

Hi I'd want to pin the vcpu of a guest to a pcpu. the docs clearly say https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/ch09s04.html "Locking a guest to a particular NUMA node offers no benefit if that node does not have sufficient free memory for that guest. libvirt stores information on the free memory available on

Hi I have defined a logical pool and a volume within it # virsh vol-create-as images_lvm myvol 2G Vol myvol created # virsh vol-list images_lvm Name Path ----------------------------------------- myvol /dev/libvirt_images_vg/myvol if I try to create another volume using the previous one as backing-vol, the creation fails with what looks like an incorrect

> > I think a good way to get that is to shrink the filesystem of the > original disk, shrink the disk itself and convert the file-based image > to the LV like you do. > > Once done, you can extend the LV and the filesystem back to what it was > before the process if needed. > > Other than that, I don't know a way to get what you want with the > current tools.

Hi I have a test environment where a single LVM volume group is used both as a storage pool for virtual machines' disks AND for the LVs used for the HOST system filesystem. I never use libvirt commands to start/stop/activate the pool. Only to create/delete volumes. The test environment works fine. How suitable would be a shared VG for a production environment ? thanks, Edoardo Comar

<font size=2 face="sans-serif">Hi</font> <br> <br><font size=2 face="sans-serif">I dug various posts and articles on guest time synchronization.</font> <br><font size=2 face="sans-serif">I could not conclude why it might be better to use ntpd in a guest rather than a daemon that reads from kvmclock </font>

Hi (apologies for the previous post in html - was scrubbed in the list digest) I've dug various posts and articles on host-guest time synchronization. I could not conclude why it might be better to use ntpd in a guest rather than a daemon that reads from kvmclock and having NTP running on the host only (assuming the guest OS is a recent linux and so the clock source is set to the

Hi all, I am trying to run some performance tests using libvirt 1.2.17. For these tests it is necessary to set a specific affinity for the VCPUs of a running VM. The problem is, that I noticed a significant performance drop in my metrics when using 'vcpupin' from the virsh console instead of running 'taskset' natively. Specifically the methods I am comparing are 1.

On Wed, Apr 26, 2017 at 08:51:39AM -0500, Eric Blake wrote: > > > > I migrated a Windows 7 VM with libvirtd tunnelled, the VM halted > > on the target although the status is running. What do you mean by halted ? The guest OS has shutdown, or QEMU has crashed, or something else ? > > > > > > [root@test15 ~]# virsh migrate --live --p2p --tunnelled

Hello When a call comes in, I'd like to fork a Python script that broadcasts a message so that users see the CID name + number pop up on their computer screen, and simultaneously ring their phones. The following script doesn't work as planned: It waits until the script ends before moving on to the next step, which is Dial(): =========== exten =>

On 02/11/2014 04:45 PM, Cole Robinson wrote: > On 02/10/2014 06:46 PM, Chris Friesen wrote: >> Hi, >> >> We've run into a problem with libvirt 1.1.2 and are looking for some comments >> on whether this is a bug or design intent. >> >> We're trying to use migrateToURI() but we're using a few things (numatune, >> vcpu mask, etc.) that may need

Dear all I allocate only one vcpu for the container by the following statement, that is, I want to pin the vcpu to physical core "2". <vcpu placement='static' cpuset="2" >1</vcpu> My host has 4 physical cores. Before test, all the 4 cores are idle. After I run 4 processes in the container, I found all the 4 cores in the host are 100% used. That is, the

Thomas Sudler <TSudler at ch.imshealth.com> wrote: > I want to start an action when i click into a cell. Example: When I click > into a cell, a message box should open with the information of the > location of the cell where I clicked in. <SNIP> So I only > need to know how to get the possition of the active cell. Thomas, Getting the active cell is easy, just use :

Hi, I'm using virsh to instance a VM in my environment, but I'm running on some issues. I created the following domain file: <domain type='kvm'> <name>demovm</name> <uuid>4a9b3f53-fa2a-47f3-a757-dd87720d9d1d</uuid> <memory unit='KiB'>4194304</memory> <currentMemory

[moderator note: I'm forwarding a stripped down version of the original mail which was rejected in the moderator queue. I stripped the 3.3 megabyte .tar.bz2 of the log file attachment, which is inappropriate for a technical list. Either trim the log to the relevant portion, or host the log externally and have your list email merely give a URL of the externally-hosted file] >

On Fri, Apr 14, 2023 at 6:36?AM Mike Christie <michael.christie at oracle.com> wrote: > > On 4/12/23 2:56 AM, Jason Wang wrote: > >> I can spin another patchset with the single ioctl design so we can compare. > > So I'm fine with this approach. One last question, I see this: > > > > /* By default, a device gets one vhost_worker that its virtqueues share.

Hello All, Since 4.5.0-23.el7 version (Red Hat 7.7), when I launch pinned VM, libvirtd reset CPU affinity to all enabled in host CPUs, if it runs in custom cpuset. I can't reproduce this behavior with 4.5.0-10.el7_6.12 with the same kernel version (Red Hat 7.7). Libvirt runs in a custom cpuset 'libvirt', where the number of available cpus is restricted to 0,2,4,6,8. And this

Wine version 20010629 running Lotus Notes 5.08 Linux RedHat 7.1 with Xfree86 Version 4 and FVWM2 window manager When I run this version of Wine with FVWM2 the Wine window always appears on top ( always obscures other windows). I use a click to focus window policy and when I click on another window on the desktop it will not raise it over the Wine window although the window I click on does receive