While I never used linux, I highly doubt this. A 99.99999999573% doubt, to be exact.
you can't run a windows application on a mac or on old versions of windows - it's quite simply a completely different system. Plus, I'm not even sure linux has EXE files.
I think you can use a windows emulator to run these files, but I doubt this will work well if you have hardware, and will probably even be slower than windows(due to the emulation).
All that said, you should be able write VIs in LV windows and then open them in LV linux and build the application, assuming they don't have windows dependant code. Also, what do you mean by real-time? If you're doing real real-time-absolutly-can't-fail stuff, a PC won't be the right thiing anyway. If a machine has window without a lot of junk in it, it's stable. We have used this kind of setup with windows XP and it is stable. I think your real question should be "has anyone done benchmarks on my kind of LV applications in windows vs. linux". Hope this helps.
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