What is the difference between KVM and OpenVZ? (SolusVM)

KVM is true virtualization where the VPS operates as its own server, independently of the host node. OpenVZ is a container style of virtualization which relies on the host node's kernel. KVM has no restrictions in terms of functionality, but it has more overhead than OpenVZ. OpenVZ is constrained by the host node kernel, but it has less overhead in the containers themselves. KVM is generally more stable than OpenVZ.

KVM VPSs are not dedicated environments. Both virtualizations share host CPU and network port among all VPSs. Only our VDSs include dedicated CPU.

  KVM OpenVZ
CPU Performance   X
Network Performance X (with virtio)  
Disk Performance X (with virtio)  
Can upgrade distribution version without reinstall X  
Can use Windows/BSD X  
Can change kernel X  
Can use application containers (Docker, etc.) X  
  • 521 Users Found This Useful
Was this answer helpful?

Related Articles

CPU/Host Passthrough (SolusVM)

We will be happy to enable CPU host-passthrough mode on your KVM VPS upon request. Please submit...

OpenBSD IPv6 Issue (SolusVM)

OpenBSD does not always play well with our current IPv6 networking setup. The following link...

How do I connect to my VPS? (SSH)

Windows Users We recommend the program PuTTY for SSH. You can download it here:...

How do I use cPanel DNS Hosting?

In order to use RamNode cPanel DNS: At your domain registrar (e.g., GoDaddy, Namecheap), point...

Force Main IP Remote Detection (SolusVM)

If you have multiple IPs assigned to your KVM VPS and remote connections are only seeing your...