One of the things I find anoying about minix is having multiple compilers
(just bcc and gcc).  Just using one compiler (gcc in linux) really helps
adhere to the KISS principle.   But as Robert Blum points out, gcc is 
a hog.  I guess this is why we see the 1.7 Meg buffer caches.

While paging might be nice, you still have to reload gcc N times to compile
an N module program, for the typical makefile.  The only other way I see 
around the huge buffer cache is to implement the sticky bit to keep a 
programs pages in memory.  

The other alternative, #ifdef GCC, #ifdef C386 etc throughout the code, and
having multiple object file types about, is even less savory.  I would
rather live with setting and clearing sticky bits before and after heavy
compile sessions.  I wonder what others think though?