KVM VPS
KVM VPS running on Firecracker microVMs. Real hardware virtualization, not shared kernel containers labeled as VPS. Dedicated kernel per instance, KVM isolation, fast cold boot.
KVM
Hardware virtualization
Dedicated kernel per instance
~5MB
VMM footprint
Firecracker, not QEMU
<3s
Cold boot time
No legacy device init
Why this KVM stack is different
KVM is the Linux kernel virtualization layer that uses CPU hardware extensions (Intel VT-x, AMD-V) to run guest code in isolation. By itself, KVM is just a kernel API; something has to drive it and present a virtual machine to the guest.
Most VPS providers pair KVM with QEMU, a general-purpose emulator with decades of legacy device support. We pair KVM with Firecracker, a purpose-built VMM around five megabytes per instance, with only the device model a modern Linux guest needs. Same KVM hardware isolation, smaller attack surface, faster cold boot.
Hypervisor stacks side by side
| Feature | Container “VPS” | Traditional KVM/QEMU | vmfabric (KVM/Firecracker) |
|---|---|---|---|
| Isolation | Shared kernel, namespaces | KVM, full QEMU device model | KVM, Firecracker minimal device model |
| Per-instance overhead | Megabytes | Hundreds of megabytes | ~5 MB |
| Cold boot | Sub-second | Minutes | Under 3 seconds |
| Dedicated kernel | No | Yes | Yes |
| Attack surface | Large (shared kernel) | Large (legacy devices) | Small (purpose-built VMM) |
KVM hardware isolation, dedicated kernels, per-VM network namespaces. Included on every instance, no add-ons required.
Pricing
Pay with cryptocurrency, billed per second in USD credits. No monthly commitments, no bandwidth fees. Destroy instances anytime and billing stops immediately.
Contact Sales
Custom configurations, volume pricing, or dedicated support. Our team is ready to help you architect the right solution. Or if you just want to say hi.
Frequently Asked
Real KVM. Each instance runs as a Firecracker microVM on top of Linux KVM, the standard hardware virtualization layer used by major public clouds. Container-based providers that market themselves as VPS share a single host kernel across customers; vmfabric does not.