Running "xen" vm is way too broad to know. http://www.brendangregg.com/blog/2014-05-07/what-color-is-your-xen.html http://www.brendangregg.com/blog/2014-05-07/

Running "xen" vm is way too broad to know. http://www.brendangregg.com/blog/2014-05-07/what-color-is-your-xen.html http://www.brendangregg.com/blog/2014-05-07/what-color-is-yo.... PVH should be as good as KVM.