I want to know if there is a command virsh to display the cpu and memory consumption of each machine virtual. I created the virtual machine using KVM in ubuntu system.
2 Answers
The command dommemstat
can give you memory stats for a specific domain and with domstats
you can get plenty of stats for all domains or just the specified. You can pass the parameter --cpu-total
to see the total in the moment.
First get a virsh interactive console by typing virsh
on your command line and then, once inside virsh's console, issue the following command:
virsh # domstats --cpu-total
The previous command will give you the CPU stats for all domains. If you have virt-manager you can see live some graphs and other nice stats, and if you want to collect them for a time you would need some other tool, I would recommend collectd and its 'virt' plugin
-
i tried
domstats --cpu-total
and ` dommenstat, i got an error such as unknown command for
domstats ` and and empty line fordommenstat
I'm not sure what is the problem Jun 1, 2016 at 19:33 -
dont forget to always check the shell/program from which the command has been run... meaning that the command as per the answer was run from within virsh interactive interface. From bash, you would need to call
virsh domstats --cpu-total <domain>
for specific domain or the simpler, without any specifics– OldFartApr 2, 2019 at 22:03
Nadya Nux: The command 'domstat --cpu-total' is executed within 'virsh' console, not from bash. So you have basicly two ways to do it.
First:
user@yourserver:~# virsh domstats --cpu-total
Second:
user@yourserver:~# virsh
virsh # domstats --cpu-total
Hope it helps better copy&paste to new readers as well :)