[CentOS] How to list virt machine size with virsh?

Fri Dec 9 12:44:28 UTC 2011
Ljubomir Ljubojevic <office at plnet.rs>

Vreme: 12/09/2011 01:29 PM, Theo Band piše:
> On 12/09/2011 01:18 PM, James Hogarth wrote:
>>> What I miss in that overview is the memory size of clients. I found
>>> "virsh dominfo<client>" but that is for just that one client (and I
>>> have several running).
>>> The same question for "xm top". I found that there seems to exist
>>> virt-top, but I could not find this in a repository for Centos5.
>> For the memory thing off the top of my head I can't think of anything
>> in a single command... but a quick virsh list | awk '$2 ~ /running/
>> {print $1}' | while read guest; do virsh dominfo $guest | grep
>> memorything .... adapted slightly since that's untested and just
>> quickly knocked out from rough memory shoudl help...
>> With regards to virt-top that's on CentOS 6 .... for the underlying
>> hosts you really want to be on C6 rather than C5 at this point due to
>> much improved libvirt/kvm features - things like ksm and transparent
>> huge pages are new and help... and then things like the newer
>> scheduler and kernel is a bonus...
>> Leave your guests on C5 or whatever they are on while you migrate
>> sensibly... but there is no good reason for the hosts systems to be
>> runnin C5 at this point... if you are only just starting to migrate
>> form xen to kvm seriously get on C6 and do yourself a huge favour...
> Funny I was thinking about a similar script line. Then I thought, this
> is silly I must have overlooked the obvious. Let's ask the list :-)
> The machine is dual bootable (Xen/Kvm). It serves as a backup for two
> other machines running Xen (centos5). That's basically the only reason
> I'm still on C5. I use drbd to mirror disks.
> The best approach for me is to take a new machine with C6 and migrate on
> there.
> Theo

You can also connect to KVM server from other system, like Desktop via 

But Going on CentOS 6.x would be best. 6.1 ISO should be available in 
next 24-48h.


Ljubomir Ljubojevic
(Love is in the Air)
PL Computers
Serbia, Europe

Google is the Mother, Google is the Father, and traceroute is your
trusty Spiderman...
StarOS, Mikrotik and CentOS/RHEL/Linux consultant