Hi all, On the technical side, any software that does not rely on kernel specific system calls and sticks to gcc and libc, in the case of an all C package, or one that checks the kernel and includes the appropriate header files depending, should compile fine on either. Which leaves us with how well the kernel manages the hardware. Here are four comparisons: http://www.spinellis.gr/pubs/conf/2008-ICSE-4kernel/html/Spi08b.html http://bulk.fefe.de/scalability/ http://people.freebsd.org/~murray/bsd_flier.html http://www.cyberciti.biz/tips/comparison-linux-vs-freebsd-bsd-oses.html though not severely recent, the science is sound, especially in the first two articles. There seems to be a distro for every occasion on both sides of the river (more so on the Linux side, IMHO), so i reckon it comes down to choosing what suits the task at hand best, and what experience has shown you to work in such situations. My two cents. regards, Tim.