similar to: What features of kernel are required to support virDomainGetCPUStats?

Displaying 20 results from an estimated 500 matches similar to: "What features of kernel are required to support virDomainGetCPUStats?"

2012 May 28
0
[libivrt-users] What features of kernel are required to support virDomainGetCPUStats?
Hi, Weeks ago, I developed my app under ubuntu-11.10 (kernel 3.0) with lilbvirt-0.9.10. In my code , I used virDomainGetCPUStats to query cpu usage info of domains, and it worked well. However, today, I port my code to ubuntu-10.04.4 (kernel 2.6.32) with libvirt-0.9.10, I find the function virDomainGetCPUStats can't work and complains "this function is not supported by the connection
2012 Apr 16
2
What does cpu_time returned by virDomainGetCPUStats mean?
hi, everyone. I find an 'interesting' thing involving virDomainGetCPUStats(). I call it for cpu usage consumed by a domain and get a array of virTypedParameter. My system is 2-core and hyperviser return 1 parameter per cpu. So the contents of the array is like this. virTypedParameter[0] { .fiedl = "cpu_time" .type = 4 .value.ul = 51640610899
2013 Apr 19
1
problem when get the vm cpu stat
Hi all, I try to get vm cpu stat by function "virDomainGetCPUStats", when the vm Cpu usage is 100%, I can see from the vm shell by "top", when the info Get by the "virDomainGetCPUStats" show only the "cpu_time" increased, "user_time" and "system_time" was not changed at all. Is that correct ? How can I get the vm cpu usage?
2013 Oct 15
0
virDomainGetCPUStats missing in Java API bindings ?
Hi All I am trying to get the performance statistics for KVM using Java bindings. I found some api's for getting memory stats but not able to find any for cpu stats. I found virDomainGetCPUStats which look like its going to return cpu stats for a VM at http://libvirt.org/html/libvirt-libvirt.html and http://libvirt.org/hvsupport.html . I couldnt find these methods getting called from java
2012 Apr 16
1
What's the precision of the domain cpu stats?
Hi, everyone I'm using libvirt and resort to virDomainGetCPUStats for cpu usage by one domain. In my system, Ubuntu-11.10 64bit with 2 cores and Qemu Hyperviser, this function returns something like this: virTypedParameter[0] { field: "cpu_time" type: 4 value.ul 51640610899 } virTypedParameter[1] {
2012 Apr 05
2
Is this Race Condition?
Hi, everyone I'm writing application using libvirt and I need call virDomainGetCPUStats to get domain cpu stats . I learn from API reference that this function has to be called when domain is running. So my question is if there is an atomic way to test the domain's state and get its stats? Or, it's ok to call this function when domain is not active, but caller just gets error
2014 Aug 12
1
Libvirt Java API to get CPU usage of VM (KVM)
Hi all libvirt-users, Is there a counterpart on Java of the function virDomainGetCPUStats that is based on C API? Because I am trying to create a program based on java to get the CPU usage of a Guest/Domain/VM in KVM using the Libvirt Java API. Honestly, I am having a hard time in starting my program. I have no idea where to start. I mean, what functions do I need to get the CPU usage of
2012 Aug 17
1
getCPUStats of a domain by a non-root user - libvirtError: Requested operation is not valid: cgroup CPUACCT controller is not mounted
Hello, I'm trying to use libvirt as a non-root user to obtain statistics on the CPU usage by VMs using the Python API. I'm performing basically the following steps: import libvirt conn = libvirt.openReadOnly(None) dom = conn.lookupByUUIDString('268e38ea-1bc7-41e4-c19e-8eff682e58e4') dom.getCPUStats(True, 0) However, they result in the following error: libvir: QEMU Driver
2014 Apr 02
1
libvirt live migrate problem
Hi The problem is after I successful live migrate a domain, the domain os become read-only. and when I use qemu-img to show the disk info at node which domain current running , the command return 'Permission denied'. BUT, I can use qemu-img show the disk info at the previous node. My Env: two node, all install libvirt + kvm . use glusterfs as shared storage. the libvirt/kvm version:
2013 Feb 08
1
libvirt v1.0.2 fails to boot LXC container, but v1.0.0 works
Hello. tl;dr = v1.0.0 can boot my LXC containers, v.1.0.1 and v.1.0.2 fails. Paraphrased error message: "lxcContainerMountProcFuse:616 : Failed to mount ..../meminfo" I'd like to know if my host is misconfigured, or my domains, or ... why 1.0.2 and 1.0.1 are not working for me. I've been using libvirt for a while to manage QEMU instances. I have experimented with lxc.
2010 Jun 25
1
[SPAM] The Infamous "Device 0 (vif) could not be connected. Hotplug scripts not working."
When I start my domU, I get the infamous and UNINFORMATIVE! error message: "Device 0 (vif) could not be connected. Hotplug scripts not working." What could be the cause? There are strange things occuring. When I boot the host, I can start zero, one or two VM before it happens (most often zero), and then no other VM may be started successfully. It fails the same whether I try to boot
2013 Jan 23
0
linux-next: Tree for Jan 23 (hvc and virtio_console)
On 01/22/13 22:43, Stephen Rothwell wrote: > Hi all, > > Changes since 20130122: > on i386: drivers/built-in.o: In function `in_intr': virtio_console.c:(.text+0x14381e): undefined reference to `hvc_poll' virtio_console.c:(.text+0x14384a): undefined reference to `hvc_kick' drivers/built-in.o: In function `resize_console': virtio_console.c:(.text+0x143f8f): undefined
2013 Jan 23
0
linux-next: Tree for Jan 23 (hvc and virtio_console)
On 01/22/13 22:43, Stephen Rothwell wrote: > Hi all, > > Changes since 20130122: > on i386: drivers/built-in.o: In function `in_intr': virtio_console.c:(.text+0x14381e): undefined reference to `hvc_poll' virtio_console.c:(.text+0x14384a): undefined reference to `hvc_kick' drivers/built-in.o: In function `resize_console': virtio_console.c:(.text+0x143f8f): undefined
2013 May 29
0
Help needed regarding "virsh cpu-stats test_vm"
Hi, We are implementing feature called CPU separation in the platform. So, guest VMs will have dedicated cores allocated using cgroups (cgroups hierachy related VMs managed by libvirt). virsh cpu-stats command is not working in our platform : virsh # cpu-stats test_vm error: Failed to virDomainGetCPUStats() error: Requested operation is not valid: cgroup CPUACCT controller is not mounted It
2012 Mar 06
1
[help] how can I use libvirt to get cpu usage ratio ?
hi experts: I am a freshman of libvirt, I have got a domU's info like: libvirt.open, lookupByID, info. But now I want to use libvirt to get a xen domU 's cpu usage ratio , how can I fulfill it ? I cannot find the API. -------------- next part -------------- An HTML attachment was scrubbed... URL:
2014 Jun 30
1
getting CPU usage of KVM
Greetings sir,                   I am currently taking up Computer Science in my school. I just want to ask how do you get the CPU usage and Memory usage of the VMs (I'm referring sir to the graphs that the Virtual Machine Manager is displaying)? I need to get the numbers (the numbers are enough, I don't need the graph) of these informations because I will be needing it for my
2014 Jul 03
1
getting CPU usage of VMs through libvirt
Greetings everyone,        I just want to ask if it is possible to get the CPU usage of the VMs in KVM through libvirt? I mean, how does the virt-manager produce the graph it displays? Is there a way get this graph? But instead of the graph itself, I just need to get it in percentage(%) form. I'd like to know how. Thank you and your help will be greatly appreciated. regards, Marco
2014 Dec 10
1
How to use blockcopy in libvirt-java
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
2016 Dec 06
1
How can openstack retrieve the CPU usage of a lxc via libvirt?
Dear all, I want to have a view of lxc CPU usage in openstack Dashboard. According the Openstack official site , Openstack Ceilometer can poll libvirt daemon to obtain CPU usage of a virtual machine. I tried the command locally on the libvirtd host "virsh -c lxc:/// domjobinfo", I got an error "error: this function is not supported by the connection driver:
2020 Jan 10
2
Re: [PATCH Fedora libguestfs] Don't depend on libvirt-daemon-kvm monolith.
On Fri, Jan 10, 2020 at 02:15:10PM +0000, Daniel P. Berrangé wrote: > Do you use the libvirt "secret" APIs at all (disk encryption, network > disk auth passwords) ? If so you will need "libvirt-daemon-driver-secret" > too. How about any other libvirt sub-driver APIs ? Networking ? Host > dev, etc ? The full list of APIs we use is attached, assuming I got my