similar to: cgroups limitations on Virtual machines

I resolved topic 1 please diregard ( libvirtd.conf : Authentication / auth_tcp="none") . Please answer topic 2 as ver 0.8.8 claims cpu controller (cgroups) is not mounted while it is thanks Zvi Dubitzky Email:dubi at il.ibm.com libvirt-users-bounces at redhat.com wrote on 27/03/2011 18:00:05: > From: libvirt-users-request at redhat.com > To: libvirt-users at redhat.com

My virtual machine xml file has <vcpu>2</vcpu> clause while the host has 2 physical cpus (cores). Is this enough to cause a VM running 2 endless loop threads to use the 2 cores ? In my case the VM running reports (cat /roc/cpuinfo) that it has 2 vcpus but it uses only 1 core (at a time) because the 'top' at the host shows 100%cpu (out of total 200%) used by the

Hi Does Fedora release 14 (Laughlin) having Linux kernel 2.6.35.6-45.fc14.x86_64 support cgroup at the kernel ? thanks Zvi Dubitzky Email:dubi at il.ibm.com

Sorry, let me rephrase the question again: I need define a user /password for sasl but want the authentication at runtime be automatic - no explicit promting the user while accessing a tcp socket with some applications that need authentication (e.g libvirt) I try : saslpasswd2 -c -p -a libvirt <user> and it hangs (if i now press Enter it says : "invalid parameter

Hi I was asking about the fedora 14 kernel if it is good enough for cgroup usage because I am trying to set a cgroup under cpu subsytem ( /dev/cgroup/cpu/group1/ ) that have /cpu.rt_runtime_us of 100000 while cpu.rt_period_us has a value of 1000000 i.e a ratio of 1/10 . still when I run a task (endless loop) in that group (cgexec -g cpu,cpuset:group1 ./test) it gets all the cpu core time

I have fedora14 installed with standard libvirt-0.8.3. I can start VM using .xml files and also run: virsh schedinfo. the cgroup CPU controller is mounted and active . In fact I have the path to the Virtual machine : /dev/cgroup/cpu/libvirt/qemu/<vm name > Now I upgraded to libvirt-0.8.8 from a tar ball ( configure , make , make install) . I rebooted , new libvirtd started . virsh

libvirt schedinfo : ------------------ What is the meaning of the 'cap' parameter in the schedinfo virsh command (what are the units and range of values ) and what is the 'weigth' parameter ? Zvi Dubitzky Email:dubi at il.ibm.com

Hi Martin Here is some more info in the libvirt/qemu/instance...log file . Does it help in resolving the issue of : error : qemuMonitorIO:614 : internal>error End of file from monitor In the libvirtd.log file I sent you could see clearly that the debug option is active and this is the most detailed info available (or some better option than log_leve=1 exists ?) Thx Zvi Dubitzky

Hi For some reason recent libvirt code (0.8.3 and even before) the 'virsh shutdown <domain> ' is not effective . It issues an ok message but the domians remains in a runnning state . Only th e destroy works fine. Any idea ? thanks Zvi Dubitzky Email:dubi at il.ibm.com

Using libvirt under openstack I encounter a problem when launching a VM with multiple partitions (2 G image) , While a single partition can be launched successfully . The launch is done with Openstack. We are using in libvirtd.conf log_level=1 and log_outputs="1:file:/var/log/libvirt/libvirtd.log" we can see that in /var/log/libvirt/libvirtd.log appear the following error

Hi Does anybody work with the virt-image utility. - I do not see where/how one specifies the pre-defned image or the CD iso image to produce the image from - what is the .xml file requested for ? I guess it is the output xml file I just used the command with an existing .xml file (thought the utility will modify it according to the specified flags) but got the error message : "ERROR

Hi techs, Could you please explain or refer me to documentation where I could find a description of global_quota schedinfo option. Someone told me that it could mean a cpu limitation in percents like: global_quota : 25000 (does it mean cpu limit % set to 25 ?) Is it true? What other parameters mean in below output? I didn't find any related documentation at libvirt.org. Could you help me

On Thu 06 Mar 2014 20:16:45 CET, Martin Pavlásek wrote: > On 06/03/14 10:35, Daniel P. Berrange wrote: >> On Thu, Mar 06, 2014 at 12:32:28AM +0100, Martin Pavlásek wrote: >>> Hi >>> >>> I tried to restrict usage of some running VM by cpu.shares (i.e. set to >>> 10 from original 1024) on loaded system and it seem doesn't work as I >>>

Hi we have a Debian 64 bit system with qemu 0.9.1-10 ( uname -a = 2.6.26-2-amd64) installed . kvm is included and loaded to memory . Still when we create a VM we sometimes get the following error message: libvir: QEMU error : internal error unable to start guest: You do not have enough space in '/dev/shm' for the 499 MB of QEMU virtual RAM. To have more space available provided you

I need define a user /password for sasl but want that to do the verification automatically no -promting ( or even maybe avoid the verification) while using a tcp socket with some applications that need authentication (e.g libvirt) so I try : saslpasswd2 -c -p -a libvirt <user> and it hangs (if i now press Enter it says : "invalid parameter supplied") . if I avoid

Hi Does anybody use the 'virsh memtune' command and can he say what combination of libvirt version and libcgroup does he use thanks Zvi Dubitzky Email:dubi at il.ibm.com

Hello, I have another question about cgroup in libvirt I create a script that put vm in cgroup for limiting blkio sudo cgcreate -f 750 -d 750 -a $user:$group -g blkio:$alias pid=`pgrep $alias` echo $pid > /dev/cgroup/blkio/$alias/tasks $virsh schedinfo --set cpu_shares=$cpu $alias echo "8:0 $disk_io" > /dev/cgroup/blkio/$alias/blkio.throttle.read_bps_device echo "8:0

On Thu, Oct 29, 2015 at 10:40:44AM +0000, Jean-Pierre Ribeauville wrote: >Hi, > >As told in "Control Groups Resource Management" libvirt page : >Legacy cgroups layout >Prior to libvirt 1.0.5, the cgroups layout created by libvirt was different from that described above, and did not allow for administrator customization. Libvirt used a fixed, 3-level hierarchy

Hello, I'm running Debian Sid with libvirt/qemu/kvm packages from experimental: $ qemu --version QEMU emulator version 0.13.0 (Debian 0.13.0+dfsg-2), Copyright (c) 2003-2008 Fabrice Bellard $ kvm --version QEMU emulator version 0.13.0 (qemu-kvm-0.13.0 Debian 0.13.0+dfsg-2), Copyright (c) 2003-2008 Fabrice Bellard $ libvirtd --version libvirtd (libvirt) 0.8.6 /etc/libvirt/qemu.conf

Hi, As told in "Control Groups Resource Management" libvirt page : Legacy cgroups layout Prior to libvirt 1.0.5, the cgroups layout created by libvirt was different from that described above, and did not allow for administrator customization. Libvirt used a fixed, 3-level hierarchy libvirt/{qemu,lxc}/$VMNAME which was rooted at the point in the hierarchy where libvirtd itself was