Understanding Kernel Virtual Machine (KVM) VPS and Its Advantages and Disadvantages

Cloudmatika / March 12, 2026

When it comes to operating systems (OS), are you familiar with the Kernel Virtual Machine (KVM)? KVM is a core component of any operating system, such as Linux or Windows.

Before delving deeper into the Kernel Virtual Machine (KVM), let’s first get acquainted with the Kernel. The kernel in an operating system is like the heart within the human body. It is the core component that makes the operating system complete and enables it to function as an OS on a computer system.

Linux or Windows, which are widely used everywhere, wouldn’t be the operating systems you know today without their heart—the kernel. Without it, Linux would be just another program within an operating system.

An operating system can fully control a system on a computer network, and the same applies to the kernel within the operating system. The kernel’s ability to have full control over the operating system also gives it control over that computer network system.

When you turn on your computer and the system boots up, the kernel is the program loaded second after the bootloader. The kernel itself performs critical functions, such as task, memory, and disk management. Additionally, it serves as the interface between the user and the hardware components of the system.

Let’s take Linux OS as an example. Essentially, a Linux distribution (Linux Distro) is distinct from the Linux kernel. The difference lies in the fact that the Linux kernel cannot stand alone like a Linux distribution. The Linux kernel requires specific programs to become a complete operating system that users can utilize.

Meanwhile, when using a Linux distribution, you automatically receive programs that are bundled together. However, you must install these programs independently using the included CD/DVD.

After delving a bit into the kernel, what exactly is a Kernel Virtual Machine (KVM)? To learn more about the Kernel Virtual Machine (KVM), Cloudmatika will provide a detailed overview of KVM—from its definition and advantages to how it differs from OpenVZ. Read the article to the end to get all the information.

What Is KVM?

KVM stands for Kernel Virtual Machine, and as the name implies, this technology is inherently virtual. If you encounter the term “virtualization” in relation to hardware, it indicates that the hardware is created virtually or digitally. The result of this virtualization process is referred to as a Virtual Machine (VM).

KVM is a virtualization technology developed by Linux. KVM operates within the Linux OS kernel. Its development doesn’t stop there; KVM itself also produces a service derived from its use: the Virtual Private Server (VPS).

What Are the Advantages of KVM?

KVM, a Linux-based technology, is known to be superior compared to other virtualization technologies you might encounter. Want to know what its advantages are? Here are the benefits of KVM you need to know.

1. KVM Is Compatible with Various OS

This KVM VPS can also be used with various operating systems. Some of these include Linux distributions such as CentOS, Debian, or Ubuntu. However, it’s not limited to Linux distributions; KVM can also be used on other operating systems that align with your preferences and needs. Examples include UNIX or Windows.

2. Efficient KVM Performance

KVM VPS is generally favored by professionals in the fields of information technology, network systems, and web development. KVM VPS performance is considered efficient because it is based on the Linux kernel, which underpins this virtualization technology.

3. KVM Offers Dedicated Resources

Dedicated resources are exclusive to users without needing to be shared with others. In addition to dedicated resources, there are also shared resources. Essentially, shared resources are the opposite of dedicated resources.

KVM VPS itself utilizes dedicated resources. It is the presence of these dedicated resources that enables KVM VPS to handle high network traffic. Therefore, using KVM VPS is highly suitable for a company’s network system with an increasingly large website.

Especially for those of you developing an online business. KVM VPS is ideal for your website because it can assist with product checkout processes, payment processing, customer database storage, and product catalogs.

4. KVM Has Its Own RAM and CPU

KVM VPS is known for its smooth performance because it is equipped with its own RAM and CPU. In addition to these advantages in RAM and CPU, KVM VPS also features Virtual Memory Management (VMM) and a memory manager that can further enhance KVM’s performance.

5. Live Migration Feature in KVM

KVM VPS comes with a feature called live migration, whose primary function is to simplify the migration or relocation of Virtual Machines (VMs), whether moving the hardware itself or relocating that hardware from one location to another. Thus, during the migration process, there will be no downtime or other disruptions that could potentially hinder the process.

6. KVM Features a Secure Security System

KVM utilizes a security system that combines Security-Enhanced Linux (SELinux) and Secure Virtualization (sVirt), ensuring the security of your data. Beyond data protection, the security provided by KVM also helps prevent errors within the KVM process.

7. KVM Data Centers Are Located in Indonesia

The final advantage is that the KVM VPS data centers themselves are located in Indonesia. KVM VPS can be an attractive option for those wishing to use this virtualization technology, as having data centers nearby makes website access faster.

What Is the Difference Between KVM and OpenVZ?

KVM isn’t the only virtualized technology product developed by Linux. You should also be familiar with OpenVZ, which is also developed by the Linux OS but is container-based. OpenVZ actually predates KVM.

To choose between KVM and OpenVZ, you need to understand the differences between them. To help you understand these differences, here are the key distinctions between KVM and OpenVZ that you should know.

1. Virtual Servers

Although both are virtualization technologies, OpenVZ itself does not utilize full-scale virtualization. KVM utilizes the entire physical server for virtualization. Meanwhile, OpenVZ divides the physical server into virtual containers at the OS level.

2. Operating System

The first key difference lies in OS compatibility. As for KVM, you already know that it is highly compatible with several operating systems besides Linux. Meanwhile, OpenVZ only works with Linux.

3. Performance

When comparing the resources available to KVM and OpenVZ, KVM still holds the lead in terms of faster and more stable performance. This is because its server resources are closer to dedicated resources. Meanwhile, OpenVZ falls short of KVM but outperforms shared resources.

4. Price

When compared, OpenVZ is more affordable than KVM. This is because KVM, which uses full virtualization, requires various hardware components and has a more complex virtualization system. OpenVZ also requires some hardware and virtualization like KVM, but it is not as complex or as intricate as KVM.

So, have you decided between KVM and OpenVZ? If you’re still unsure, consult your company’s needs with Cloudmatika. Cloudmatika offers Virtual Private Server services, available in both container-based and virtual machine formats for you to choose from. Contact us here for more information about the VPS package you’re looking for!