What is the difference between KVM and OpenVZ?

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  
  • 427 Users Found This Useful
Was this answer helpful?

Related Articles

Do you allow ____?

Please check our Acceptable Use Policy for information on what you cannot run on your VPS. If you...

Uptime Guarantee

We guarantee that your VPS will be online 99.9% of the time.Exceptions might include:...

How do I connect to my VPS? (SSH)

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

How do I connect to my VPS? (SSH)

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

How do I reset/reinstall my VPS OS?

Steps for Reinstalling MAKE SURE YOU DOWNLOAD WHATEVER YOU WANT TO SAVE TO YOUR COMPUTER....