Note: Operating System Design

09 Feb 2014

###4.1 A simple system

####4.1.1 A framework for devices

####4.1.2 Low-level kernel

#####4.1.2.1 Terminals

#####4.1.2.2 Network communication

####4.1.3 Processes and threads

• PCB: process control block
• TCB: thread control block

A side note why pthread_detach doesn’t free cleanly, a thread cannot free its own stack- it would be using the stack when deallocation take place.

####4.1.4 Storage management

#####4.1.4.1 Managing primary storage

#####4.1.4.2 File systems

###4.2 Rethinking operating-system structure

####4.2.1 Virtual machines

#####4.2.1.1 Processor virtualization

#####4.2.1.2 I/O virtualization

#####4.2.1.3 Paravirtualization

####4.2.2 Microkernels

The whole notion of microkernel seems promising, but too bad that it is never actually in the mainstream because of the performance.

###4.3 Conclusions