[libvirt-users] sluggish behavior

Ainsworth, Thomas tainsworth at vsi-corp.com
Tue May 20 17:11:20 UTC 2014


Greetings,

This is my first stab at this mailing list.  Forgive me if I am over/under
verbose.

We have been running KVM for a while now and love it.  Recently I have
noticed a weird anomaly
that is getting on my nerves.  When I clone (GUI or virt-clone from CLI)
both* virt-manager* and *virsh*
enquiries get extremely sluggish.   Using top I cannot see any resource
issues.  No I/O wait, the load
average show noting outside of the normal, nothing taking CPU or Memory.  I
have notice that in a
couple of the instances the libvirtd daemon was stopped.   We have more
than twenty (20 +) VM's
running - they all seem fine.  The metal server is a beast of an 820 with
192GB of RAM and 64 CPU's.
The load average rarely creeps above 2 or 3.  Do not think it is a resource
issue.   I can write a test
file to the filesystem/volume where the images live at over 350MB/s.

The sluggishness disappears after a reboot.  If I clone a VM ... back again
...

Any ideas?

Thanks in advance,

Tom Ainsworth
RHCSA
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/libvirt-users/attachments/20140520/17231ad4/attachment.htm>


More information about the libvirt-users mailing list