similar to: Getting libvirt Error when setting IO tune read_bytes_sec value using libvirt API virDomainSetBlockIotune

Hi, I am running OpenStack Cluster and use libvirt + cgroup to limit vm’s performance https://wiki.openstack.org/InstanceResourceQuota What I am confusing is.. 1. After running a vm instance with some croup limit applied, I can’t find any related cgroup settings. 2. Can I change limit value after instance is running? like change disk_read_iops_sec from 10 to 20. One of the xml file like below.

On Mon, Nov 09, 2020 at 09:16:33AM +0200, Yedidyah Bar David wrote: > On Wed, Oct 14, 2020 at 8:54 AM Yedidyah Bar David <didi@redhat.com> wrote: > > > > On Tue, Oct 13, 2020 at 8:40 PM Richard W.M. Jones <rjones@redhat.com> wrote: > > > > > > On Tue, Oct 13, 2020 at 07:56:29PM +0300, Nir Soffer wrote: > > > > On Tue, Oct 13, 2020 at 7:15 PM

On Tue, Oct 13, 2020 at 8:40 PM Richard W.M. Jones <rjones@redhat.com> wrote: > > On Tue, Oct 13, 2020 at 07:56:29PM +0300, Nir Soffer wrote: > > On Tue, Oct 13, 2020 at 7:15 PM Richard W.M. Jones <rjones@redhat.com> wrote: > > > > > > On Tue, Oct 13, 2020 at 06:45:42PM +0300, Nir Soffer wrote: > > > > I think this is the right solution - when

On Wed, Oct 14, 2020 at 8:54 AM Yedidyah Bar David <didi at redhat.com> wrote: > > On Tue, Oct 13, 2020 at 8:40 PM Richard W.M. Jones <rjones at redhat.com> wrote: > > > > On Tue, Oct 13, 2020 at 07:56:29PM +0300, Nir Soffer wrote: > > > On Tue, Oct 13, 2020 at 7:15 PM Richard W.M. Jones <rjones at redhat.com> wrote: > > > > > > >

On Mon, Jan 13, 2020 at 01:42:24AM +0100, Oliver Dzombic wrote: > Hi, > > i am running: > > libvirt-5.6.0-5.fc31.x86_64 > 5.4.8-200.fc31.x86_64 > > > Using: > > <blkiotune> > <device> > <path>/dev/sda1</path> > <read_iops_sec>100</read_iops_sec> >

Hi, ALL, I just look for the class and method to use blockcopy in libvirt-java on this page: http://libvirt.org/sources/java/javadoc/ However, I can not find out. Libvirt-java Support blockcopy ? Thanks. Best Regards, Star Guo

Hi, reading the below[1] on blkdeviotune made me wonder if we can dynamically change the values after the VM is already running using iotune. Is it supported? Thanks, Doron [1] https://fedoraproject.org/wiki/QA:Testcase_Virtualization_IO_Throttling

On 04/09/2014 08:02 AM, Doron Fediuck wrote: > Hi, > reading the below[1] on blkdeviotune made me wonder if we can dynamically > change the values after the VM is already running using iotune. > > Is it supported? Yes. 'virsh blkdeviotune' will do it (which makes calls to the underlying virDomainSetBlockIoTune() API). -- Eric Blake eblake redhat com +1-919-301-3266

Hello, Current version adding 'auth_supported=none' at the end of disk path and failing to do an authentication with specified cephx key: <source protocol='rbd' name='rbd/vmxxxxxxxxx:id=qemukvm:key=[cut]==:auth_supported=cephx'> <host name='10.0.0.13' port='6789'/> <host name='10.0.0.10' port='6789'/>

Hello All, I am using virDomainSetBlockIoTune() API to set the IO tune parameter for a running guest VM. I observed that after setting the value succesfully i ned to Shutdown and start the VM inorder to take the set value in effect. Is there any way with which these values come in effect in the same session of the VM without Shutting down and starting the VM. Please help regards, Vikrant

Whe have a Active Directory with the SFU2307 Unix extensions running. The user authentication is running fine against the Active Directorty, for this why are using the "ad" idmap backend. The only problem that are not running is, that "getent group" are only shows the local linux groups and no Actvie Directory Groups with a GID. "wbinfo -g" and "wbinfo -G"

Hi all, I'd like to get a few storage statistics from a running vm. I'd like to know read and write data about QCOW2 devices and about RBD volumes. I did try to execute a command similar to this: virsh qemu-monitor-command vm-vnc '{ "execute": "query-block"}' as described here:

Hi all, I use libvirt-go in my agent to attach rbd volumes. I ofen suffer the issue of incosistent of domain dump xml and domain persistent xml file. For example, when I try to attach volume, the the domain by ?virConnectListAllDomains? api from libvirt tell me the vdf or 0x0a is empty, but when attach it with the vdf device or 0x0a address, qemu return the error duplicated with vdf or PCI

I tried running qemu-system-x86_64 -help" command manually. But it seems that it work normally. Here is the output. Kindly guide me. spanhal1@seclab2:/usr/bin$ qemu-system-x86_64 -help QEMU emulator version 1.2.0 (qemu-kvm-1.2.0), Copyright (c) 2003-2008 Fabrice Bellard usage: qemu-system-x86_64 [options] [disk_image] 'disk_image' is a raw hard disk image for IDE hard disk 0

Hi, I'm trying to figure out what controls the number if in-flight virtio block operations when running linux in qemu on top of a linux host. The problem is that we're trying to run as many VMs as possible, using ceph/rbd for the rootfs. We've tripped over the fact the the memory consumption of qemu can spike noticeably when doing I/O (something as simple as "dd" from

Hi, I'm trying to figure out what controls the number if in-flight virtio block operations when running linux in qemu on top of a linux host. The problem is that we're trying to run as many VMs as possible, using ceph/rbd for the rootfs. We've tripped over the fact the the memory consumption of qemu can spike noticeably when doing I/O (something as simple as "dd" from

Hi all, I'm running a VM using libvirt+KVM and I have a disk performance issue. The host is the following: 4 cores Intel Xeon 5140@2.33 GHz, 16 GB of RAM, SATA HDD, OS Debian Wheezy, libvirt 0.9.12-11, QEMU-KVM 1.1.2+dfsg-2. The guest: 1 CPU, 2 GB RAM running Debian 7.0, image in compressed qcow2 format. When I try do run "dd if=/dev/zero of=io.test bs=32768k count=40" I get

Hi guys, I am new to QEMU-KVM, libvmi and libvirt stuff. Libvmi uses libvirt. I am trying to to run process-list example of libvmi and getting error as below. It seems that this error may be due to libvirt as it is not able to find domain. I seek your kind help on below error: spanhal1@seclab2:~/KVMModule/libvmi-0.10.1$ sudo ./examples/process-list ubuntu libvir: QEMU error : Domain not found:

On Mon, Aug 25, 2014 at 8:42 PM, Chris Friesen <chris.friesen at windriver.com> wrote: > I'm trying to figure out what controls the number if in-flight virtio block > operations when running linux in qemu on top of a linux host. > > The problem is that we're trying to run as many VMs as possible, using > ceph/rbd for the rootfs. We've tripped over the fact the the

Hi, is there a way to configure blkio via libvirt (xml)? Regards Erkan -- ?ber den grenzen mu? die freiheit wohl wolkenlos sein