Citation
Christoph Kirsch. "Time-Portable Programming the JAviator in Tiptoe OS". Talk or presentation, 13, January, 2009.

Abstract
The JAviator (Java Aviator) is a high-performance quadrotor model helicopter that is built around a high-integrity frame which is horizontally and vertically symmetric and supports high payloads through light-weight materials and advanced brushless motors. The JAviator is 1.3m in diameter weighs 2.2kg in total and generates a maximum lift of 5.4kg which translates into a theoretical maximum payload of 3.2kg. Without payload the maximum flight time is around 40min. We have designed and built the JAviator completely from scratch and use it as test platform for software projects such as Exotasks which we developed in collaboration with IBM Research and Tiptoe which is our own prototypical real-time operating system. Exotasks are an alternative to Java threads and enable time-portable programming of hard real-time applications in Java hence the name JAviator. Time-portable programs do not change their relevant real-time behavior across different hardware platforms and software workloads. Tiptoe supports even stronger forms of time portability than Exotasks in particular the execution of software processes whose real-time behavior even including system-level aspects such as their I/O communication and memory management can be predicted and maintained per process independently of any other processes. The talk will give an overview of the JAviator's hardware and flight performance and then focus on the latest developments in the Tiptoe kernel in particular its time-portable process model scheduler design and memory management. This is joint work with S.S. Craciunas H. Payer H. Roeck A. Sokolova H. Stadler and R. Trummer.

Electronic downloads

• UCB09-JAviator.pdf · application/pdf · 69 kbytes

• HTML

  Christoph Kirsch. <a
  href="http://chess.eecs.berkeley.edu/pubs/514.html"
  ><i>Time-Portable Programming the JAviator in
  Tiptoe OS</i></a>, Talk or presentation,  13,
  January, 2009.

• Plain text

  Christoph Kirsch. "Time-Portable Programming the
  JAviator in Tiptoe OS". Talk or presentation,  13,
  January, 2009.

• BibTeX

  @presentation{Kirsch09_TimePortableProgrammingJAviatorInTiptoeOS,
      author = {Christoph Kirsch},
      title = {Time-Portable Programming the JAviator in Tiptoe OS},
      day = {13},
      month = {January},
      year = {2009},
      abstract = {The JAviator (Java Aviator) is a high-performance
                quadrotor model helicopter that is built around a
                high-integrity fr<x>ame which is horizontally and
                vertically symmetric and supports high payloads
                through light-weight materials and advanced
                brushless motors. The JAviator is 1.3m in diameter
                weighs 2.2kg in total and generates a maximum lift
                of 5.4kg which translates into a theoretical
                maximum payload of 3.2kg. Without payload the
                maximum flight time is around 40min. We have
                designed and built the JAviator completely from
                scratch and use it as test platform for software
                projects such as Exotasks which we developed in
                collaboration with IBM Research and Tiptoe which
                is our own prototypical real-time operating
                system. Exotasks are an alternative to Java
                threads and enable time-portable programming of
                hard real-time applications in Java hence the name
                JAviator. Time-portable programs do not change
                their relevant real-time behavior across different
                hardware platforms and software workloads. Tiptoe
                supports even stronger forms of time portability
                than Exotasks in particular the execution of
                software processes whose real-time behavior even
                including system-level aspects such as their I/O
                communication and memory management can be
                predicted and maintained per process independently
                of any other processes. The talk will give an
                overview of the JAviator's hardware and flight
                performance and then focus on the latest
                developments in the Tiptoe kernel in particular
                its time-portable process model scheduler design
                and memory management. This is joint work with
                S.S. Craciunas H. Payer H. Roeck A. Sokolova H.
                Stadler and R. Trummer. },
      URL = {http://chess.eecs.berkeley.edu/pubs/514.html}
  }
  

Posted by Hiren Patel on 14 Jan 2009.
Groups: chess
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