search for: virdomaingetcpustats

Displaying 20 results from an estimated 25 matches for "virdomaingetcpustats".

2012 May 28
1
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 driver: virDomainGetCPUStats&quo...
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 g...
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 driver: virDomainGetCPUStats&quo...
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 =...
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 source too. Which libvirt version does Java API correspond to ? I m using Java API 0.5.1 . If i want...
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 } virTypedParamet...
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 er...
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...
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
...ast) <ipython-input-23-9317cf967f6d> in <module>() ----> 1 dom.getCPUStats(True, 0) /usr/lib/python2.7/site-packages/libvirt.pyc in getCPUStats(self, total, flags) 1733 [{cpu_time:xxx, user_time:xxx, system_time:xxx}] """ 1734 ret = libvirtmod.virDomainGetCPUStats(self._o, total, flags) -> 1735 if ret is None: raise libvirtError ('virDomainGetCPUStats() failed', dom=self) 1736 return ret 1737 libvirtError: Requested operation is not valid: cgroup CPUACCT controller is not mounted However, CPUACCT is actually started and mo...
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:
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:
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 should show info like this. $ virsh cpu-stats test_vm CPU0: cpu_time 0.025812184 seconds vcpu_time 0.025812184 seconds CPU1: cpu_time 4.893484927 seconds vcpu_time 4.893484927 seconds Total: cpu_time 4.9246209...
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
2020 Jan 10
2
Re: [PATCH Fedora libguestfs] Don't depend on libvirt-daemon-kvm monolith.
...nReadOnly ( virConnectRef( virConnectSetKeepAlive( virConnResetLastError ( virConnSetErrorFunc ( virDomainAttachDeviceFlags ( virDomainBlockPeek ( virDomainBlockStats ( virDomainCreateXML ( virDomainDestroy ( virDomainDestroyFlags ( virDomainDetachDeviceFlags ( virDomainFree ( virDomainGetConnect ( virDomainGetCPUStats( virDomainGetID ( virDomainGetInfo ( virDomainGetMaxMemory ( virDomainGetName ( virDomainGetSchedulerParameters ( virDomainGetSchedulerType ( virDomainGetUUID ( virDomainGetUUIDString ( virDomainGetVcpus ( virDomainGetXMLDesc ( virDomainInterfaceStats ( virDomainLookupByID ( virDomainLookupByName (...
2013 Feb 28
1
The accurate CPU usage of a domain?
Hi,all I want to get a relatively accurate cpu usage of a domain. I have a few questions about virDomainGetInfo: struct virDomainInfo{ unsigned char state : //the running state, one of virDomainState unsigned long maxMem :// the maximum memory in KBytes allowed unsigned long memory :// the memory in KBytes used by the domain unsigned short nrVirtCpu :// the number of virtual CPUs for the
2020 Jan 10
5
[PATCH Fedora libguestfs] Don't depend on libvirt-daemon-kvm monolith.
libguestfs usually needs qemu. However it only requires an emulator for the same architecture, not for all architectures. libvirt-daemon-kvm pulls in qemu which pulls in emulators for all architectures, as well as a bunch of other stuff we don't need at all like network interface support and nwfilter. There are no Fedora TCG-only arches, so drop the conditional section. I also made support
2019 Apr 08
0
[PATCH v4 2/7] common: Bundle the libvirt-ocaml library for use by virt-v2v
...(domv); + CAMLlocal5 (cpustats, param_head, param_node, typed_param, typed_param_value); + CAMLlocal1 (v); + virDomainPtr dom = Domain_val (domv); + virTypedParameterPtr params; + int r, cpu, ncpus, nparams, i, j, pos; + int nr_pcpus; + + /* get number of pcpus */ + NONBLOCKING (nr_pcpus = virDomainGetCPUStats(dom, NULL, 0, 0, 0, 0)); + CHECK_ERROR (nr_pcpus < 0, "virDomainGetCPUStats"); + + /* get percpu information */ + NONBLOCKING (nparams = virDomainGetCPUStats(dom, NULL, 0, 0, 1, 0)); + CHECK_ERROR (nparams < 0, "virDomainGetCPUStats"); + + if ((params = malloc(sizeof(...
2019 Dec 16
3
[v2v PATCH 0/2] Move libvirt-ocaml copy to v2v repo
libvirt-ocaml is used only by virt-v2v, so move it to this repository, instead of having it around in the common submodule. The removal from common will happen later. Pino Toscano (2): common: Bundle the libvirt-ocaml library for use by virt-v2v build: switch embedded copy of libvirt-ocaml .gitignore | 2 + 3rdparty/libvirt-ocaml/Makefile.am |