What Is a KVM VPS and Why It Matters
If you've seen "KVM VPS" on a plan and wondered what it means, this is the short version: it's the type of virtualization that gives you a real, isolated server — not an oversold container.
What is KVM?
KVM (Kernel-based Virtual Machine) is a full hardware-virtualization technology built into the Linux kernel. It turns one physical server into several completely independent virtual machines, each with its own kernel and dedicated slice of CPU, RAM and storage. Your KVM VPS behaves exactly like a standalone physical machine — you can run any operating system, load custom kernel modules, and even run containers inside it.
KVM vs OpenVZ vs LXC
Not all "VPS" products use the same virtualization. The main types:
| Type | Isolation | Resources | Run any OS? |
|---|---|---|---|
| KVM | Full VM, own kernel | Dedicated, guaranteed | Yes (Linux & Windows) |
| OpenVZ | Container, shared kernel | Often oversold | Linux only |
| LXC | Container, shared kernel | Shared | Linux only |
Container-based types (OpenVZ, LXC) are lighter and cheaper for the host to run, but they share the host's kernel and are more frequently oversold — which can mean unpredictable performance.
Why KVM matters for you
- Guaranteed resources — your CPU and RAM are genuinely yours, not shared on demand.
- Run any OS — Linux or Windows, plus custom kernels.
- Full compatibility — Docker, Kubernetes, custom modules and nested virtualization all work.
- True isolation — a noisy neighbour can't consume your allocation.
Every Getwebup VPS uses KVM, so you always get a real, isolated server. Learn more about how VPS hosting works.
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