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Kernel-based Virtual Machine (KVM) vs. Oracle VirtualBox

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    Overview
    ProductRatingMost Used ByProduct SummaryStarting Price

    KVM

    Score9.4 out of 10
    N/AKernel-based Virtual Machine (KVM) is a virtualization solution developed by small Israeli software company Qumranet and supported by Red Hat since that company's acquisition in 2008.N/A

    Oracle VirtualBox

    Score8.2 out of 10
    N/AOracle VirtualBox is an open source, cross-platform, virtualization software, enables developers to deliver code faster by running multiple operating systems on a single device.

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    Pricing
    KVMOracle VirtualBox
    Editions & Modules
    No answers on this topic
    No answers on this topic
    Offerings
    Pricing Offerings
    KVMOracle VirtualBox
    Free Trial
    NoNo
    Free/Freemium Version
    NoYes
    Premium Consulting/Integration Services
    NoNo
    Entry-level Setup FeeNo setup feeNo setup fee
    Additional Details
    More Pricing Information
    Community Pulse
    KVMOracle VirtualBox
    Considered Both Products
    Red Hat
    Chose KVM
    Kernel-based Virtual Machine is an open-source and free solution, compared to Virtualbox which is a product from Oracle.
    Incentivized
    Chose KVM
    Compared to VirtualBox, KVM has simpler licensing terms and is supported by the operating system vendor. KVM also has more mature integrations with other open-source projects. Automating provisioning is simple with KVM since it is available in the package repositories of …
    Incentivized
    Chose KVM
    KVM is free and provides environments where guests can run their own Kernel while still performing very well.
    It is also very native to work with KVM since it is integrated within the Linux Kernel.
    Incentivized
    Oracle
    Chose Oracle VirtualBox
    Oracle VirtualBox is the better choice due to its cost-effectiveness, ease of use and feature set. However VMware Workstation is more suitable due to its superior performance, better features and better integration with enterprise tools. VMware Workstation also provides a …
    Incentivized
    Chose Oracle VirtualBox
    Reasons why I prefer to use Oracle VM VirtualBox:
    • I've worked and taught in many environments where the OS used by others (or by me for employment reasons) is a mix of Windows and Mac OSX. Sometimes Linux is around if I can help it. Being familiar with VirtualBox means I won't …
    Incentivized
    Chose Oracle VirtualBox
    I have used Linux KVM and Oracle VirtualBox in order to virtualize and manage different VMs. Oracle's solution, in my opinion, it is better because of the GUI, documentation and API.
    I have managed to write scripts to automate different procedures to help in my daily duties. I …
    Incentivized
    Key User Insights
    Would buy again
    No answers on this topic
    95%
    Would buy again
    18 Answers
    Delivers good value for the price
    No answers on this topic
    100%
    Delivers good value for the price
    19 Answers
    Happy with the feature set
    No answers on this topic
    100%
    Happy with the feature set
    19 Answers
    Lived up to sales and marketing promises
    No answers on this topic
    85%
    Lived up to sales and marketing promises
    11 Answers
    Implementation went as expected
    No answers on this topic
    100%
    Implementation went as expected
    17 Answers
    Features
    KVMOracle VirtualBox
    Server Virtualization
    Comparison of Server Virtualization features of Kernel-based Virtual Machine (KVM) and Oracle VirtualBox
    Feature
    Kernel-based Virtual Machine (KVM)
    9.2
    6 Ratings
    13% above category average
    Oracle VirtualBox
    8.2
    50 Ratings
    2% above category average
    Virtual machine automated provisioning7.05 Ratings8.036 Ratings
    Management console10.04 Ratings8.846 Ratings
    Live virtual machine backup10.04 Ratings8.236 Ratings
    Live virtual machine migration10.05 Ratings7.033 Ratings
    Hypervisor-level security9.04 Ratings9.029 Ratings
    Best Alternatives
    KVMOracle VirtualBox
    Small Businesses
    Proxmox VE
    Score9.2 out of 10
    Proxmox VE
    Score9.2 out of 10
    Medium-sized Companies
    VMware vSOM (discontinued)
    Score10 out of 10
    VMware vSOM (discontinued)
    Score10 out of 10
    Enterprises
    IBM PowerVM
    Score9.6 out of 10
    IBM PowerVM
    Score9.6 out of 10
    All AlternativesView all alternativesView all alternatives
    User Ratings
    KVMOracle VirtualBox
    Likelihood to Recommend
    10.0
    (6 ratings)
    7.5
    (53 ratings)
    Likelihood to Renew
    -
    (0 ratings)
    10.0
    (4 ratings)
    Usability
    10.0
    (1 ratings)
    10.0
    (7 ratings)
    Availability
    -
    (0 ratings)
    8.0
    (1 ratings)
    Performance
    -
    (0 ratings)
    10.0
    (1 ratings)
    Support Rating
    -
    (0 ratings)
    10.0
    (2 ratings)
    Implementation Rating
    -
    (0 ratings)
    10.0
    (2 ratings)
    Configurability
    -
    (0 ratings)
    9.0
    (1 ratings)
    Product Scalability
    -
    (0 ratings)
    8.0
    (1 ratings)
    User Testimonials
    KVMOracle VirtualBox
    Likelihood to Recommend
    Red Hat
    KVM is the best solution in the case you need to test and turn up any virtual environment with limited vCPU/RAM resources. The obvious area of its use is a network environment when we want to avoid being tied to one type of hardware/vendor and being able to swap from one instance to another with no downtimes. The use of a vSwitch (that supports VLAN tagging) is a significant bonus for network engineers that some other hypervisors do not provide.
    Incentivized
    Read full review
    Oracle
    It is best suited when you want to have different operating systems on your laptop or desktop. You can easily switch between operating systems without the need to uninstall one. In another scenario, if you expect some application to damage your device, it would be best to run the application on the VM such that the damage can only be done to the virtual machine. It is less appropriate when time synchronization is very important. At times the VMs run their own times differently from the host time and this may cause some losses if what you doing is critical. Another important thing to take note of is the licensing of the application you want to run your VM. Some licenses do not allow the applications to be run on virtual servers so it is not appropriate to use the VM at this time.
    Incentivized
    Read full review
    Pros
    Red Hat
    • KVM is really good at providing fast and reliable virtualization for Linux guests
    • Since KVM is a kernel module, every VM is a Linux process which can be managed by Linux system tools
    • KVM integrates very well with the management framework libvirt, which is why KVM can be integrated in automation tools as well
    Incentivized
    Read full review
    Oracle
    • It is simple to install - there is no advanced knowledge required to begin building virtual computers
    • It is easy to use - adding new virtual machines is simple with wizard-based deployment
    • It enables easy portability - moving virtual machines from one host to another is straight-forward and simple
    • It is free
    Incentivized
    Read full review
    Cons
    Red Hat
    • KVM itself doesn't ship with a management interface
    • KVM itself is a bit complicated to handle
    • KVM needs Qemu to virtualize Windows guests
    Incentivized
    Read full review
    Oracle
    • I have had issues in the past when it has come to resizing VM disk storage. The issue is entirely detailed here: https://www.virtualbox.org/ticket/9103 -- the problem was caused because of having existing snapshots (which error message output was not detailing). I haven't had to deal with the issue due to my dynamic disk sizes not being small from the start anymore (this is mostly an issue for my Windows VMs where the base disk may need significant size for the OS). It looks like, for a resize, that a merge of all snapshots has to occur first -- one user on that list details a workaround to maintain snapshots by cloning the VM. (Note: 5.2 was just released a few weeks ago, and looks like it should prevent the problem happening in the future by properly informing users that it isn't possible with snapshots).
    • Certain scenarios, like resizing disks, required dropping into a terminal as there were no options to previously do so via the GUI. According to some recent posts, I've seen that v5.2 has added disk management stuff like that to the GUI (or will be adding it). I'm comfortable with dropping into the terminal, but in a teaching scenario or when evaluating the learnability of the tools, it complicates things.
    Incentivized
    Read full review
    Likelihood to Renew
    Red Hat
    No answers on this topic
    Oracle
    I give this rating because virtual box is inexpensive but there is another product such as vm ware that can also be used
    Incentivized
    Read full review
    Usability
    Red Hat
    It does the job and stays out of the way. The specifics of usability relies on the implementation, but with things like Icarus and libvirt, things are standardizing nicely.
    Incentivized
    Read full review
    Oracle
    I love using the Graphical User Interface. The VirtualBox Manager is very easy to understand and use. You can quickly create, configure and manage all your virtual machines in one window. It makes operating virtual machines easy and simple. When using VBoxManage it gives the user comprehensive control over VirtualBox so that you can use automation and scripting at the command-line interface
    Incentivized
    Read full review
    Reliability and Availability
    Red Hat
    No answers on this topic
    Oracle
    Dependency on the Host OS means it is as reliable as it is possible to be. Application errors are beyond the purview of the application.
    Incentivized
    Read full review
    Performance
    Red Hat
    No answers on this topic
    Oracle
    No issues, especially with the extensions addons.
    Incentivized
    Read full review
    Support Rating
    Red Hat
    No answers on this topic
    Oracle
    Oracle have a very fast response rate and a strong user community. One can geet help from many sources if they choose to research for themselves.
    Incentivized
    Read full review
    Implementation Rating
    Red Hat
    No answers on this topic
    Oracle
    We really enjoy using virtual box. We do not require to buy expensive hardware but instead we can minimize costs and maximize profits.
    Incentivized
    Read full review
    Alternatives Considered
    Red Hat
    It is a very reliable solution that can be used for x86 architecture virtualization with low overhead. It is a free and open source software. Easy to use withOpenStack.
    Incentivized
    Read full review
    Oracle
    VirutalBox is very similar to using Vmware with the slight difference in appearance and what might be considered a less polished look. However, what it lacks in polish and looks it makes up for in functionality, easy of use and the wide range of operating systems and features it supports without the need of buying the full professional edition
    Incentivized
    Read full review
    Scalability
    Red Hat
    No answers on this topic
    Oracle
    The only problem I have found is that the deployment is dependent and intrinsically linked to the Host OS. This is different from bare metal solutions which remove that dependency on a Host OS. The latter is more reliable and removes a layer of potential failure.
    Incentivized
    Read full review
    Return on Investment
    Red Hat
    • Fast provisioning of new servers.
    • Huge drop of the cost of servers compared to bare metal.
    • Easy upgrades of resources, sometimes now even requiring a server restart.
    Incentivized
    Read full review
    Oracle
    • Minimal-to-no support needed from the DevOps team.
    • Provides a direct and an easy way to access multiple VMs inside the same machines which enables performing various testing and QA tasks without the need to switch hardware.
    • Automatic provisioning using tools (esp. Vagrant) which enables developing a base image once, and allows for exporting/importing anywhere across the developers team.
    • Very cost-effective (no fees or monthly subscriptions).
    Incentivized
    Read full review
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