VxWorks vs. RTEMS

Jack Cawkwell J.Cawkwell at open.ac.uk
Mon Aug 9 07:45:33 UTC 2004

gregory.menke at gsfc.nasa.gov on Monday, August 9, 2004 at 4:22 AM  wrote:

>> One of the reasons that vxWorks and RTEMS are so
>> much faster than conventional operating systems is 
>> they don't have to spend time fooling around with vm
>> hardware whenever a context switch occurs- thats the
>> tradeoff you make; speed vs protection. 

Slightly off the topic: is this important in life 
critical applications? Would authorities approving 
critical systems be happier, or even insist on, using 
hardware context switching, for reasons of safety?


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