On Tue, 15 Feb 2000 09:35:56 -0500 
 Ken Hornstein <kenh@cmf.nrl.navy.mil> wrote:

 > >On an 8M 486/66 under 1.4.1, I found that I couldn't build a kernel
 > >with -O2. I let it run for about 48 hours before giving up; it was
 > >just paging itself to death.
 > 
 > Hmmm .... my 8M 386/33 took under a day to build a new kernel for 1.4.1
 > with the default compiler options (okay, that was in single-user mode :-) ).
 > Certainly way slower than 1.3, though.

It's worth noting that the compiler in 1.3 and 1.4.1 are very different,
the latter one (EGCS) is just slower because it does a lot more work (and
chews up a lot more memory, as a result).  Turning off optimization makes
EGCS go a lot faster.

This is, in general, not the OS's fault :-)

        -- Jason R. Thorpe <thorpej@nas.nasa.gov>