Tagged Questions

0
votes
0answers
93 views

Can cgroups blkio be applied to Xen backend tap drivers?

Is it possible to use cgroups' blkio controller (proportional weight time in particular) on Xen backend tap drivers? Since they're just processes I don't see why not, but I haven't tried this and was ...
2
votes
1answer
360 views

capping VM IO with cgroups

I'm using cgroups to cap disk IO that a VM does by using libvirt's support for cgroups. So, I'm getting the major/minor number of the device from a 'ls -lL' on the drive where the '.img' file for the ...
2
votes
1answer
221 views

OpenNebula-managed libvirt not allowing access to /dev/kvm

I have a fresh Open Nebula 3.2.1 installation which I'm trying to get working and manage some freshly-installed debian squeeze kvm hosts. My problem is that when Open Nebula deploys VMs the KVM ...
1
vote
3answers
336 views

Cgroups vs Tasksets in KVM

I have a CentOS 6 host for several KVM VMs with FreeBSD as guest. I want to bind each VM to use no more than one core at once. What would you suggest to use, Cgroups or Tasksets?
1
vote
1answer
231 views

CFS hardlimit in cgroups

I recently moved to KVM. Previously I was using xen and its capping feature in credit scheduler. Where we can set a cpu cap for a VM. I was searching for a similar feature to set hard limits on a VM ...
4
votes
1answer
337 views

KVM + cgroups: Dom0 process best practice?

I am transitioning from Xen to KVM, and will be using Fedora 14. I plan to use cgroups to assign priorities to VMs. My question is as follows: If I place VMs in various cgroups, should I also put ...