[libvirt] 'dommemstat' is not working for LXC hypervisor.

Kumar L Srikanth-B22348 B22348 at freescale.com
Wed Apr 28 11:19:57 UTC 2010

My requirement is to get how much memory is free in the guest domain.
Can you please let me know, how can I do that?
And also, as you said it's quite easy to implement dommemstats for lxc
driver, is there any possibility to implement that?


-----Original Message-----
From: Daniel P. Berrange [mailto:berrange at redhat.com] 
Sent: Wednesday, April 28, 2010 4:46 PM
To: Kumar L Srikanth-B22348
Cc: libvir-list at redhat.com
Subject: Re: 'dommemstat' is not working for LXC hypervisor.

On Wed, Apr 28, 2010 at 04:43:41PM +0530, Kumar L Srikanth-B22348 wrote:
> Thanks for the reply Daniel.
> Virsh dominfo dommand showing following results:
> Id:             32473
> Name:           vm1
> UUID:           f13bc513-15f2-1dd1-74f6-18c47931ece9
> OS Type:        exe
> State:          running
> CPU(s):         1
> Max memory:     5000000 kB
> Used memory:    5000000 kB
> Autostart:      disable
> Though whatever services running on the domain, every time used memory

> is showing as 5000000 kB. Is that result is correct?

The 'Max memory' 5000000 KB is the hard limit that is allocated to the
container. I thought that the 'used memory' field would be lower, but
its possible we don't have the actual stats for used memory so just set
both the same. I'd have to research the code again to answer for sure...

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