202310071625
Status: #idea
Tags: OS

Microkernel

• Moves as much as possible from the kernel to the user-space
• Communication takes place between modules using message passing
• Kernel only consists of essential components
• Main function of microkernel is to provide communication facility (using message passing)
• Advantages
  • Easier to port to new architectures
  • Easier to extend the microkernel
  • More reliable (less kernel code running)
  • More secure
• Disadvantages
  • Performance overhead of user-space to kernel-space communication

References