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

Thanks ozaki. But can you please elaborate the process of getting memory.stat of a particular domain? I mounted cgroup filesystem prior to start libvirtd service using the below command: mount -t cgroup cgroup /cgroup Then started libvirtd service. Then started the domain. Here, can you let me know the process of viewing memory stats of that particular domain?

By the way, in the /cgroup directory lot of files are created. In those, which one can be memory stats?

Regards, Srikanth. -----Original Message----- From: Ryota Ozaki [mailto:ozaki.ryota@gmail.com] Sent: Thursday, April 29, 2010 5:27 PM To: Kumar L Srikanth-B22348 Cc: Daniel P. Berrange; libvirt list; Ryota OZAKI Subject: Re: [libvirt] 'dommemstat' is not working for LXC hypervisor. On Wed, Apr 28, 2010 at 8:19 PM, Kumar L Srikanth-B22348 <B22348(a)freescale.com&gt; wrote: > Daniel, > 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? Do you enable cgroup memory subsystem? If so, something wrong in lxc driver of 0.8.0. BTW, 'Used memory' includes both RSS and caches, so if you need total-RSS value, you should use dommemstat. > And also, as you said it's quite easy to implement dommemstats for lxc > driver, is there any possibility to implement that? We can get statistics of dommemstat easily through memory.stat of cgroup.memory subsystem except statistics of page faults.  ozaki-r > > Regards, > Srikanth. > > -----Original Message----- > From: Daniel P. Berrange [mailto:berrange@redhat.com] > Sent: Wednesday, April 28, 2010 4:46 PM > To: Kumar L Srikanth-B22348 > Cc: libvir-list(a)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... > > Daniel > -- > |: Red Hat, Engineering, London    -o- > http://people.redhat.com/berrange/ :| > |: http://libvirt.org -o- http://virt-manager.org -o- > http://deltacloud.org :| > |: http://autobuild.org        -o- > http://search.cpan.org/~danberr/ :| > |: GnuPG: 7D3B9505  -o-   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B > 9505 :| > > > -- > libvir-list mailing list > libvir-list(a)redhat.com > https://www.redhat.com/mailman/listinfo/libvir-list >