MigrationFromVRTXToRTAILinux < Training

%SECTION0{name=MigrationFromVRTXToRTAILinux}% Migrating from RTOS (VRTXsa) to RTAI-Linux

   * Differences
      * VRTXsa and other proprietary OSes come from one source, whereas Linux
        bears more resemblance to a toolbox with tools from different sources.
      * Get support from knowledgable people you choose yourself - not only from vendor
        (i.e. take your car to _a garage_, not to _the vendor_)

   * Advantages
      * Linux is supported on large number of systems.  Support *can not be abandoned*
        because all sources are available.
      * Build environment is *the same* as target environment
      * Huge amount of programs available (and protocols supported)
      * Very good compiler suite for C/C++ (GCC) (ever traced a compiler bug?)

   * Disadvantages
      * Different API (although the Xenomai project aimed at VRTX API emulation)
      * Two-level structure, i.e. real-time tasks in kernel space, rest in user space

4.9. RTAI-Linux (Part Two)		1. Embedded Linux Training course		4.11. Process model with RTAI-Linux (RTHAL)
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