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MicroKernel

Essential services run in kernel space and remaining process which are not as important are out of this space.

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    1 min read (132 words)

  • source

    llms.txt

Essential services run in kernel space and remaining process which are not as important are out of this space.

stuff that is in the kernel

  • process mgmt
  • interrupt handling
  • interprocess communication
  • memory management

How does communication occur in microkernel

THEY USE INTERPROCESS COMMUNICATION

  1. one of the reasons it is slower is due to this that here communication requires message passing instead of direct function calls.
Advantages and Disadvantages

ADV-

  1. More secure as services are not given full privilege
  2. Better stability
  3. Easier maintenance as the kernel is smaller and has less components.
  4. better modularity DISADV-
    1. Slower performance due to IPC overhead.
    2. the communication between services is very complex.
    3. frequent switching between user and kernel mode (Switches increase the cost).

**Examples are - MACH, MINIX3, and other embedded and safety system use this only.

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