The gains are insignificant with an openvz jail environment compared to a paravirtualized (PV, *not* HVM) Xen environment. With OpenVZ in its current incarnation you are stuck running a 2.6.32 series ancient kernel which significantly reduces support for high performance I/O devices such as the latest 10GbE PCI-Express 3.0 NICs, which are now as cheap as $200 a piece. Also nonexistant support for high performance 1500-2000MB/s storage devices such as M.2 format PCI Express SSDs (Samsung, Intel) and support for the motherboard firmwares that enable booting from M.2.
On Thu, Nov 12, 2015 at 5:18 PM, Josh Reynolds <j...@kyneticwifi.com> wrote: > The can be significant performance gains in both memory reduction and > IO by using OpenVZ though. It just depends on your needs and > environment. > > On Thu, Nov 12, 2015 at 7:09 PM, Eric Kuhnke <eric.kuh...@gmail.com> > wrote: > > Openvz is really more like a chroot jail. You can accomplish much better > > functionality and the ability to run a wider range of guest VMs with xen > or > > kvm. > > > > Keep in mind with openvz all guest OS must run the same kernel as the > host. > > > > Unless you need openvz for a hosting environment that will have hundreds > of > > small VMs on a server with 128GB RAM? > > > > On Nov 11, 2015 3:58 PM, "Matt" <matt.mailingli...@gmail.com> wrote: > >> > >> Anyone out there using Proxmox for virtualization? Have been using if > >> for few years running Centos Openvz containers. Like fact that Openvz > >> is light weight and gives very little performance penalty. In Proxmox > >> 4.x they have introduced the ZFS file system which I think is a great > >> offering many features such as mirroring etc. They have also switched > >> from Openvz to LXC for containers. Anyone used LXC much? Is it > >> stable? Pros and cons vs Openvz? >
