Is there a way to circumvent that? For my diploma thesis I need to utilize deployed VMs for a period of up to 12 hours. However, if KSM is active, the physical host doesn't hold this utilization, but adjusts the used memory pages. Since I want to measure the power consumption of the physical host under full VM utilization, I need the real memory to stay utilized as well, yet I don't want to be forced to kill a VM in order to free the memory after 12 hours of load (as there would be no need to use opennebula then. I still want be able to migrate my VMs :)). Can you give me a hint?
-----Ursprüngliche Nachricht----- Von: rsmont...@gmail.com [mailto:rsmont...@gmail.com] Im Auftrag von Ruben S. Montero Gesendet: Donnerstag, 24. November 2011 21:10 An: Adnan Pasic Cc: users@lists.opennebula.org Betreff: Re: [one-users] A question about the utilization of VMs Well that's normal if not usinng balloning. The hypervisor (outside the VM) allocates the whole memory till the VM is destroyed On Thu, Nov 24, 2011 at 10:19 AM, Adnan Pasic <pq...@yahoo.de> wrote: > Okay, here is what I do: > - first I turned off the KSM function on the host that is going to hold my > VM > - then: onevm create vm_2GB.qemu > - then: ssh user@vm_2GB > - then: lookbusy -m 2000M > --> Via "top" or "free" I can see that this VM is fully utilized now! > --> In the physical machine I get the same result - 2GB utilized, which is > as expected! > - then, after some time: killall lookbusy (from inside the VM) > --> "top" or "free" now say that the VM is empty in regard to memory > utilization > - However when I now execute the "free" command on my host, I get this: > > total used free shared buffers cached > Mem: 3023 2933 89 0 21 675 > -/+ buffers/cache: 2236 786 > Swap: 6234 9 6225 > > As you can see the utilized memory is not cached or whatsoever, but really > utilized (as we can see in line 2: 2236 MB used!!!). > Any ideas? :-( > > _______________________________________________ > Users mailing list > Users@lists.opennebula.org > http://lists.opennebula.org/listinfo.cgi/users-opennebula.org > -- Dr. Ruben Santiago Montero Associate Professor (Profesor Titular), Complutense University of Madrid URL: http://dsa-research.org/doku.php?id=people:ruben Weblog: http://blog.dsa-research.org/?author=7 _______________________________________________ Users mailing list Users@lists.opennebula.org http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
