design Real-Time Process in RTEMS
skyeye.rtems at gmail.com
Fri Aug 31 15:06:09 UTC 2007
VxWorks 6.x have the Real-Time Process (RTP) extension.
I think we also can implement the RTP in RTEMS.
The Idea is :
1 RTP contains 1~n
user-level rtems-task, and process the virtual memory related things.
2 the mapping relation of virtual memory :phyiscal memory is 1:1
3 the user-level task in RTP can access kernel function by syscall
4 the user-level tasks and the kernel-level tasks are in the same
the advantage of RTP is:
1 the crash of user-level tasks in RTP can
not destroy user-level tasks in other RTP and the kernel.
2 compatible with the old task model.
3 the context switch is faster than that of general OS (such as linux)
anyone have some advices on RTP in RTEMS?
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