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title: Week #9 (Apr 21) :: Kernel Concepts and Threading
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資訊安全議題
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* `Hacking the D-Link DIR-890L<http://www.devttys0.com/2015/04/hacking-the-d-link-dir-890l/>`_
* `What the Ridiculous Fuck, D-Link?!<http://www.devttys0.com/2015/04/what-the-ridiculous-fuck-d-link/>`_
作業須知 (Lab-43)
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* 作業描述: `Lab 43</embedded/Lab43>`_
* 截止日期: May 2, 2015 (含) 之前
Computer Systems: A Programmer's Perspective
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* `CMU 官方網站<http://csapp.cs.cmu.edu/>`_
* 推薦閱讀: (和本課程高度相關)
- `Machine-Level Representation of Programs<http://csapp.cs.cmu.edu/2e/ch3-preview.pdf>`_: 對應 `Week #3</embedded/2015q1w3>`_
- `Processor Architecture<http://csapp.cs.cmu.edu/2e/ch4-preview.pdf>`_: 對應 `Week #3</embedded/2015q1w3>`_
- `Optimizing Program Performance<http://csapp.cs.cmu.edu/2e/ch5-preview.pdf>`_: 對應 `Lab-38</embedded/Lab38>`_
- `The Memory Hierarchy<http://csapp.cs.cmu.edu/2e/ch6-preview.pdf>`_: 對應 `Week #7</embedded/2015q1w7>`_
- `Linking<http://csapp.cs.cmu.edu/2e/ch7-preview.pdf>`_: 對應 `Week #8</embedded/2015q1w8>`_
- `Exceptional Control Flow<http://csapp.cs.cmu.edu/2e/ch8-preview.pdf>`_: 對應 `Week #4</embedded/2015q1w4>`_, `Week #6</embedded/2015q1w6>`_
- `Virtual Memory<http://csapp.cs.cmu.edu/2e/ch9-preview.pdf>`_: 對應 `Week #8</embedded/2015q1w8>`_
- `System-Level I/O<http://csapp.cs.cmu.edu/2e/ch10-preview.pdf>`_: 對應 `Lab-39</embedded/Lab39>`_
- `Concurrent Programming<http://csapp.cs.cmu.edu/2e/ch12-preview.pdf>`_: 對應 `Week #9</embedded/2015q1w9>`_
POSIX
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* `POSIX – 25 Years of Open Standard APIs<http://rtcmagazine.com/articles/view/103514>`_
- 用圖表說明了 PSE51, PSE52, PSE53, PSE54，以及用於即時處理應用的 IEEE 1003.13-2003 (POSIX.13) Profiles
* `Linux As a Real-Time Operating System<http://www.freescale.com/files/soft_dev_tools/doc/white_paper/CWLNXRTOSWP.pdf>`_
- 回顧 POSIX 中即時處理機制，特別是 SCHED_FIFO 和 SCHED_RR 這兩個 scheduler policy，以及 High Resolution POSIX Timers (HRT)
- 即時處理的案例指出列車控制系統
- SGI 的 IRIX 改善即時處理效能的途徑，是在通用的作業系統核心 (如 Unix) 中加入若干 preemption point，這點也被 PREEMPT-RT 採用
- 從報告中清楚得知，為什麼資訊工程系的學生該把機率統計學好呢？我們要得知一個系統的即時處理效能，就要從 PDF (probability distribution function) 去分析
- 「如果你研究沒做到統計，表示你還不夠深入」
* `Comparative analysis of preemption vs preempt-rt<http://www.slideshare.net/linaroorg/lca14-lca14506-comparative-analysis-of-preemption-vs-preemptrt>`_
- Linaro Connect Hong Kong 2014 中，Linaro Networking Group (LNG) 核心維護者 Gary Robertson 的演講
- `錄影<https://www.youtube.com/watch?v=QiguBicpB88>`_
Kernel Concepts
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* `Priority Inversion on Mars<http://www.slideshare.net/jserv/priority-inversion-30367388>`_
* `Making Linux do Hard Real-time<http://www.slideshare.net/jserv/realtime-linux>`_
