Questions tagged [libvirt-guests]

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Delayed start for Guests KVM/libvirt

Looking for any pointers anyone may have to introduce a delayed start for KVM guests i.e. 30 seconds between starting each virtual server rather than starting them all at once which thrashes the disks ...
Backtogeek's user avatar
1 vote
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Virtualized Centos 7 on Ubuntu host: very slow I/O

I run a Centos 7 virtualized in Ubuntu 20.04. There is a huge I/O performance drop in the VM compared to the host. The host has plenty of RAM. Host: * MB/s = 1,000,000 bytes/s * KB = 1000 bytes, KiB = ...
Laurent's user avatar
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1 vote
2 answers
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KVM quests "stuttering"/"freezing" intermittently on Debian 10

I'm using KVM on Debian 10 as host and for now two guests that are Debian 10 as well. The guests are "stuttering" frequently, what I mean by that is that like at least several times an hour ...
LetMeSOThat4U's user avatar
1 vote
0 answers
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Libvirt VM using twice it's memory

Running on Ubuntu server, a CentOS 7 VM is eating the memory : Host: # free -m total used free shared buff/cache available Mem: 80140 71676 ...
Laurent's user avatar
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Cannot share an NFS directory with a Fedora host on Vagrant/libvirt

I am running a Fedora machine with Vagrant over libvirt: # -*- mode: ruby -*- # vi: set ft=ruby : # All Vagrant configuration is done below. The "2" in Vagrant.configure # configures the ...
gkaf's user avatar
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gcp suspending active libvirt guests

I am facing the issue where GCP is suspending all the active libvirt guests frequently. Below are the logs from syslog. google-clock-skew: INFO Synced system time with hardware clock. systemd[1]: ...
user550256's user avatar
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1 answer
441 views

How to route network traffic between KVM and VirtualBox?

Is there a simple way to route network traffic between two VMs, one in virtualbox and the other in KVM/libvirt? In the KVM World, I can see the virbr interfaces (Virtual Bridges?) and they have an IP ...
Aldo Bassanini's user avatar