Hi, Le Fri, 9 Jun 2006 21:12:32 +0200, "Yang Huang" <justin8086@xxxxxxxxx> a écrit : > I am trying to figure out why Linux is not a real time OS, which i > believe is true but want to know which part of the OS introduces > nondeterministics. I'd suggest you to read some books or documents concerning the difference between "hard real time" and "soft real time" (http://en.wikipedia.org/wiki/Real_time). You'll discover that "hard real time" is really hard to achieve correctly in a general-purpose operating system. However, you may want to have a look at things such as RTAI/Fusion, http://www.fdn.fr/~brouchou/rtai/rtai-doc-prj/rtai-fusion.html. Concerning soft real time and reduction of the latency, you'll be interested by the work made by Ingo Molnar and others. See http://lwn.net/Articles/106010/ for informations about real time and Linux. And please, please, use Google. Sincerly, Thomas -- PETAZZONI Thomas - thomas.petazzoni@xxxxxxxx http://{thomas,sos,kos}.enix.org - Jabber: thomas.petazzoni@xxxxxxxxx http://{agenda,livret}dulibre.org - http://www.toulibre.org Fingerprint : 0BE1 4CF3 CEA4 AC9D CC6E 1624 F653 CB30 98D3 F7A7
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