IncludeOS

IncludeOS is a minimal, open source, unikernel operating system for cloud services and IoT, developed by Alf Walla and Andreas Åkesson.^[1][2] IncludeOS allows users to run C++ applications in the cloud without any operating system.

IncludeOS

Developer	IncludeOS AS[1]
Written in	C++
Source model	Open source
Initial release	August 18, 2014; 10 years ago (2014-08-18)
Marketing target	Cloud computing
Platforms	x86, x86-64
Kernel type	Unikernel
Userland	POSIX subset, custom
License	Apache License 2.0
Official website	www.includeos.org

IncludeOS runs on virtual machines like Linux KVM, and VMWare ESXi/Fusion.^[3]

IncludeOS applications boot in about 300 ms. On Solo5/uKVM from IBM Research, boot times as low as 10 milliseconds are possible.^[4]

Architecture

The minimalist architecture of IncludeOS means that it does not have any virtual memory space. In turn, therefore, there is no concept of either system calls or user space.^[3]