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| Developer | Cloudius Systems |
|---|---|
| Written in | C++ |
| Working state | Alpha |
| Source model | Open source |
| Initial release | September 16, 2013; 6 years ago (2013-09-16) |
| Marketing target | Cloud computing |
| Available in | Multilingual |
| Platforms | x86-64 using the KVM, Xen, VMware, and VirtualBox hypervisors. (arm64 on KVM is under development) |
| Kernel type | Unikernel |
| Userland | POSIX, Java, Ruby |
| Default user interface | CLI, web |
| License | BSD license |
| Official website | osv |
OSv (stylized OSv) is a cloud computing focused[1] computer operating system released on September 16, 2013. It is a special-purpose operating system built to run as a guest on top of a virtual machine, thus it does not include drivers for bare-metal hardware. It is a unikernel, designed to run a single Linux executable or an application written in one of the supported runtime environments (such as Java).[2] For this reason, it does not support a notion of users (it's not a multiuser system) or processes - everything runs in the kernel address space.[3] Using a single address space removes some of the time-consuming operations associated with context switching.[4] It uses large amounts of code from the FreeBSD operating system, in particular the network stack and the ZFS file system. OSv can be managed using a REST Management API and an optional command line interface written in Lua.
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