Quote Originally Posted by mibo
Did I get it right?
You run compilation tests on a 32bit BSD kernel and a 64bit Linux kernel and compare the results.
I think even on one kernel there can be optimizations for one of the architectures present while the other runs unoptimized code (example: sse2 code for intel chip while no sse2/3dnow for amd). But with two completely different kernels this comparison is even more meaningless - I think.
If somebody can assure me that all the kernels are optimized for both architectures - but IMHO nobody can.

Just my 2cents
mibo
well if you want a completely un Optimized OS, you are going to have to make your own... when you try to make a fast os you have to use hardware specific features if you want it to run well. Although you would make one that runs equally well on both Current/Next gen AMD/Intel chips. but you would lose out on some of the more advanced features you can use to make your OS even better.
Although the OS that is closest to unbiased towards AMD or Intel would be BeOS.