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%SECTION0{name=LinuxRealtime}% Can Linux handle real-time requirements? * Linux is multiuser, timesharing system <p></p> * Kernels up until 2.4 are *not preemptible* (2.5 started to integrate _low latency_ and _kernel preemption_ patches) <p></p> * Alternatives are 1 Enhance linux kernel performance (Timesys patch + proprietary modules) 1 Introduce new lower, real-time level * RT-Linux (_Victor Yodaiken_ FSM Labs) is _patented_ . Not clear if patent would stand up in court. * RTAI (_Paolo Montegazza_) is GPLd <p></p> * Two-level structure is *faster* but *more complicated*
4.6. Licensing Models
1. Embedded Linux Training course
4.8. RTAI-Linux (Part One)
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