Which is the best XEN or KVM VPS?

I think, its just the matter of preference but it also depends on what type of applications you want to host on VPS, how much will be utilization etc.

I've worked on all three (OpenVZ, XEN and KVM) technologies and they have their own pros and cons.

But, as you've specifically asked about XEN or KVM then I would recommend you to go with KVM due to its architecture, provide isolation and resources are dedicated to it.

Its bit complex but with appropriate optimization of VPS and installation drivers, KVM would work great.

I hope it helps. :)
 
Generally speaking, you can't compare OpenVZ to XEN/KVM since those are completely two different worlds.

OpenVZ: Linux only, (very) shared resources which makes it harder to avoid from one VM cause trouble to others (resources / performance wise).
XEN/KVM: Better performance, better isolation features between each and every VM (H/W resources wise), supports both Windows and Linux OS.

In short, if you are going to offer Linux and Windows VMs, certainly OpenVZ is a no go, you have to choose either KVM Or XEN and here, it's up to each individual's taste. Google for both and find which one you find more suitable for your taste.
 
Generally speaking VMs running on KVM vs XEN benchmark better in solusvm. I tested both before deciding which to use in our solusvm system. Make sure your use virtio drivers for any windows VMs/templates too if you choose KVM. Also solusvm didnt support the latest XEN at the time of our install, so that was another reason. Xen has a few different VM levels , PV & HVM too. It all depends on the control panel you plan to go with to manage your vms or resell them.

My recommendation is go with KVM.
 
We have moved almost everything to VMware. However, we still have some infrastructure for KVM-based VM's and we like it more than Xen... which does't mean that Xen itself isn't a very good virtualization technology.
 
As already said it depends on your needs but also on your knowledge. If you don't feel comfortable to admin kvm or xen don't go that route. You need to work with it every day and in case of problems needs to be able to solve this issues quick!
 
Linux KVM VPS is an ideal bridge between shared hosting and dedicated servers. With full root access, you're able to install advanced software and completely customize it easily.
Whenever you need to add or remove a module from your Linux kernel, you can easily do that!
 
As long as it is not OpenVZ you made a good choice, the preference would be on what you are most experienced with and what you intend to do.
 
Cloud Platform does not matter, as it depends on the features you are looking for.

Both XEN and KVM are good. But hopefully to recommend you, i hope XEN is better to manage and control the VMs.
 
This can be decided based on the application that you are going to run on your vps. Please let us know about the application that you are planning to run on vps so that we can provide correct information
 
it depends on what your goals are, xen performance for large enterprise servers is better than KVM (or was some time ago). KVM seems to work better in a bundled solution such as Solusvm. so like so many things ... it depends.

determine your hardware, what you plan to use it for, control panels, etc and advantage and disadvantages in KVM and XEN and then make a decision and go for it
 
We recommend Xen virtualization because it is fully virtualization and works on systems that support virtualization extensions, but can also work as a hypervisor on machines that don't have the virtualization extensions. Xen is a hypervisor that supports x86, x86_64, Itanium, and ARM architectures, and can run Linux, Windows, Solaris, and freeBSD.
SolumVM or XenCenter(Citrix) panels are used to manage Xen.
 
Well, KVM is better for me. It 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.
 
Hostslayer said:
Which is the best XEN or KVM VPS for you?
Click to expand...


Hello Hostslayer,

Xen virtualization is a technology that allows multiple operating systems to run on a single computer. It can be helpful if you want to run different versions of Windows or to use a Linux distribution on your computer but don't have the space for it. Xen also allows you to run multiple applications simultaneously on a single machine. It is helpful if you need to perform multiple tasks simultaneously or use different applications for different tasks.

The Xen hypervisor uses a micro-kernel design that runs on bare-metal hardware and can run on systems without virtualization extensions. In addition, Xen has various new security features, including Linux stub domains, a lightweight VM fork to analyze malware, and a live patch feature with higher granular control over patching & support for the hardware-based Control-flow Enforcement Technology Shadow Stack.

KVM is an abbreviation for Kernel-based Virtual Machine, a virtualization technology built into the standard Linux Kernel. It allows you to run the kernel on the root node, making it possible to run other operating systems. KVM requires the hardware to run its own virtualization extensions, but this should not cause a problem, given that most non-Atom Intel and AMD processors come with these extensions.

KVM VPS gives you complete liberation to set the values for your resources based on the requirements of your application. Moreover, it provides virtualization of only the existing system's hardware resources. So, all the shared resources, such as disk space, CPU time, and network IO will be fairly distributed by the hypervisor.

Benefits of XEN Virtualization for VPS server:
  • Increases the flexibility of a server
  • Improve the performance of VPS
  • Reduce costs
  • Security Benefits
  • More efficient server
  • Stability of server
Benefits of KVM Virtualization for VPS server:
  • Reduces the amount of hardware required for server
  • Decreases the maintenance costs
  • Superior performance
  • Security
  • Open-source
  • Migration

I hope the above information helps you to understand which virtualization is the best, XEN or KVM, for the VPS server.
 
Last edited by a moderator:
Aayushi said:
Hello Hostslayer,

Xen virtualization is a technology that allows multiple operating systems to run on a single computer. It can be helpful if you want to run different versions of Windows or to use a Linux distribution on your computer but don't have the space for it. Xen also allows you to run multiple applications simultaneously on a single machine. It is helpful if you need to perform multiple tasks simultaneously or use different applications for different tasks.

The Xen hypervisor uses a micro-kernel design that runs on bare-metal hardware and can run on systems without virtualization extensions. In addition, Xen has various new security features, including Linux stub domains, a lightweight VM fork to analyze malware, and a live patch feature with higher granular control over patching & support for the hardware-based Control-flow Enforcement Technology Shadow Stack.

KVM is an abbreviation for Kernel-based Virtual Machine, a virtualization technology built into the standard Linux Kernel. It allows you to run the kernel on the root node, making it possible to run other operating systems. KVM requires the hardware to run its own virtualization extensions, but this should not cause a problem, given that most non-Atom Intel and AMD processors come with these extensions.

KVM VPS gives you complete liberation to set the values for your resources based on the requirements of your application. Moreover, it provides virtualization of only the existing system's hardware resources. So, all the shared resources, such as disk space, CPU time, and network IO will be fairly distributed by the hypervisor.

Benefits of XEN Virtualization for VPS server:
  • Increases the flexibility of a server
  • Improve the performance of VPS
  • Reduce costs
  • Security Benefits
  • More efficient server
  • Stability of server
Benefits of KVM Virtualization for VPS server:
  • Reduces the amount of hardware required for server
  • Decreases the maintenance costs
  • Superior performance
  • Security
  • Open-source
  • Migration

I hope the above information helps you to understand which virtualization is the best, XEN or KVM, for the VPS server.
Click to expand...
What are the ramifications for organizations that eat up bandwidth and storage in a shared hosting environment? How does the hosting provider mitigate these types of issues?
 
Choosing between KVM and Xen VPS depends on your needs:

KVM: Excellent performance, security, and flexibility. Ideal for most users, especially those needing top-notch hardware similarity.

Xen: It often with slightly lower costs. Good choice if you isolate stability and Linux environments (Xen struggles with Windows).

Both are solid options! Consider your sequence (performance, cost, OS compatibility) to decide.
 
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