RE : windows .... linux

Hi,

No need to demonstrate that linux is better than windows in real time
processing, this is sure it's better ;o)
First I want to tell you that I think you should not use cygwin to work real
time since the real time scheduling policy defined under linux (FIFO and RR)
are not yet handled in cygwin. To my knowledge, the only way to have real
time under windows is to use RTX from venturcom. I know that they are
priority levels in windows thread (from 16 to 31 if I well remember) that
should correspond to real time in the microsoft point of view (can not be
compared to linux with RT patches or the new 2.6 kernel) but you can not
obtain good time response without RTX. 
Since you are working with a NI board, there is another solution provided by
NI that consists in a computer (typically a PXI CPU and PXI acquisition
board) working on a NI real time system (FSMlabs or something like that)
making acquisition in real time and sending the results to a windows server
through ethernet or optical fiber. Look at NI web site for more details.


Olivier MUSSE

Received on 2004-03-15Z10:21:21