版本 16333fa0de9ac3e293b398230e1a9bd221965d8a
Changes from 16333fa0de9ac3e293b398230e1a9bd221965d8a to 3a0f5b19d09875d7f93b0b5e6c216e53b4eadc02
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title: Xenomai
categories: embedded, arm, raspberrypi
toc: no
...
組員
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作業系統架構
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* 與 RT-PREEMPT 途徑的差異?
硬體驅動原理
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* 硬體使用 Raspberry Pi
效能表現
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* `Cyclictest<https://rt.wiki.kernel.org/index.php/Cyclictest>`_
* Test case: POSIX interval timer, Interval 500 micro seconds,. 100000 loops, 100% load.
- Commandline: cyclictest -t1 -p 80 -i 500 -l 100000
* 使用 RT-PREEMPT
.. code-block:: prettyprint
Linux raspberrypi 3.6.11+ #474 PREEMPT Thu Jun 13 17:14:42 BST 2013 armv6l GNU/Linux
Min: 22 Act: 31 Avg: 32 Max: 169
* 使用 Xenomai
.. code-block:: prettyprint
Linux raspberrypi 3.8.13-core+ #1 Thu Feb 27 03:02:16 CST 2014 armv6l GNU/Linux
Min: 1 Act: 5 Avg: 6 Max: 41
參考資料
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* https://code.google.com/p/picnc/wiki/RPiXenomaiKernel
* https://code.google.com/p/picnc/wiki/CreateRaspbianLinuxCNC
* http://www.camelsoftware.com/firetail/blog/raspberry-pi/real-time-operating-systems/