KVM Reviews

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Real User
Software Architect with 501-1,000 employees
Apr 23 2019

What do you think of KVM?

What is our primary use case?

My primary use case for KVM is running multiple VMs and containers on the one node.

What is most valuable?

I find the density of the product most valuable. It is because of kernel same page merging technology (KSM) that is integrated into Linux kernel. That high density makes KVM one of the important players of the virtualization market.

What needs improvement?

In the future release of KVM, I would like to have improved support for Windows guests.

For how long have I used the solution?

More than five years.

What do I think about the stability of the solution?

The stability of this solution is less than other products in the same category. But, it is OK. 

What do I think about the scalability of the solution?

The scalability of the product…
Matias Sundman
Real User
System Architect at a aerospace/defense firm with 10,001+ employees
Dec 13 2018

What is most valuable?

A big strength with KVM is that it is an open-source component. It gets improvements from Intel, for example, and the other semiconductors. It can be sized-down to a very small package. It can be used in embedded systems as well, so it has a… more»

What needs improvement?

I would like to see a separation, so you could have KVM running in a few cores, and then you could have a real-time operating system running another core, so there is a hybrid environment with real time operating systems and Linux.

What's my experience with pricing, setup cost, and licensing?

It is cheaper than other competitors like VMware or Hyper-V.
Find out what your peers are saying about KVM, VMware, Microsoft and others in Server Virtualization Software. Updated: June 2019.
348,275 professionals have used our research since 2012.
Matias Sundman
Real User
System Architect at a aerospace/defense firm with 10,001+ employees
Jan 09 2019

What is most valuable?

There is a lot of value with an open source solution because you have some freedom of changing how the system behaves and looks because it's open source. You can modify to your… more»

What needs improvement?

The management of the whole system, could be improved. VMware is better on the management tools, for example, Red Hat is when it comes to the KVM. In addition, we would like to have a… more»

What's my experience with pricing, setup cost, and licensing?

It is cheaper than other solutions out there on the market.

If you previously used a different solution, which one did you use and why did you switch?

We previously used VMware but switched to KVM because it is an open ecosystem and we see there is a benefit in open source solutions.
Real User
System Architect at a tech services company with 11-50 employees
Apr 24 2018

What is most valuable?

Our infrastructure is based on KVM and Linux Containers (LXC). We had a lot of VMware legacy, but it was converted to Ubuntu and KVM hypervisor for about the last year. Management and… more»

How has it helped my organization?

In the Linux world, KVM is a very reliable solution which can be used for x86 architecture virtualization with reasonable overhead. Reliable and extensible have a tight integration… more»

What needs improvement?

The support of virtualization in the recent generation of x86 processor is almost a must have, so the only negative aspect of needing hardware support is a fully functional KVM can be… more»

What's my experience with pricing, setup cost, and licensing?

It is free and can be run from your laptop, if needed, unlike VMware.
Andre Ruppert
Real User
IT-Leiter (IP) with 11-50 employees
Apr 11 2019

What do you think of KVM?

What is our primary use case?

Running virtualization clusters with more than 300 VMs.

How has it helped my organization?

The platform changes from hardware to virtualized whenever possible.

What is most valuable?

Open source The ability to execute live migrations Linux, a base OS.

What needs improvement?

Management of underlying volumes.

For how long have I used the solution?

Three to five years.

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Find out what your peers are saying about KVM, VMware, Microsoft and others in Server Virtualization Software. Updated: June 2019.
348,275 professionals have used our research since 2012.

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What is KVM?

KVM (for Kernel-based Virtual Machine) is a full virtualization solution for Linux on x86 hardware containing virtualization extensions (Intel VT or AMD-V). It consists of a loadable kernel module, kvm.ko, that provides the core virtualization infrastructure and a processor specific module, kvm-intel.ko or kvm-amd.ko.
KVM customers
MediaWiki, Wikimedia Foundation, Wikipedia, Wikivoyage, Wikidata, Wikiversity, Commons
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