compilation time [was Re: Magnavox consultant]

[tmoran@bix.com]

I just observed a make, compile with full optimization, and link
of 2200 lines in 24 source files, in almost exactly one minute
on my 486 (Janus Ada 83 compiler).  That translates to about 22
million lines in a solid week.  But if the source files are
small, and the compiler is loaded once for each file, and there
is inadequate disk caching, things could go downhill in a hurry.
My limited experience is that C compilers generally load once,
with a bunch of source files on the command line, while Ada
compilers more often compile one file per compiler invocation.
Is that generally true?