Posts tagged os

OS schema

posted on 2015-01-17 04:55:48

While toying around with the vim DrawIt plugin (which simplyfies the task of creating ascii art diagrams immensely), I needed something to test it with.

After having come across an operating system layout and which of linux tools' are to be used at which spot, I 'redrew' this:

      |              APPLICATIONS                   |
      |          db's, all server types, ...        |
      |                   +-------------------------+
      |                   |       system libs       |
      |              system call interface          |
 l    |  VFS           ||  sockets   ||             |     cpu     +-------+
 i    +----------------++------------++  scheduler  |-------------| CPU 1 |
 n  k |  FS            ||  TCP/UDP   ||             |  intercon.  +-------+
 u  e +----------------++------------++-------------+                 |
 x  r |  volume        ||  IP        ||             |                 |
    n |  managers      ||            ||  virtual    |                 |
    e +----------------++------------++  memory     |                 |
    l |  block dev if  ||  ethernet  ||             |             +------+
      +=============================================+             | DRAM |
      |              device drivers                 |             +------+
                             |  I/O bus
                       | I/O bridge |
       expander        +------------+
       interconnect     /           \
                       /             \
       +----------------+          +--------------------+
       | I/O controller |          | network controller |
       +----------------+          +--------------------+
               /\                            /\
              /  \     if transports        /  \
             /    \                        /    \
       +------+    +------+         +------+   +------+
       | disk |    | swap |         | port |   | port |
       +------+    +------+         +------+   +------+

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