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echo: c_plusplus
to: CAREY BLOODWORTH
from: HERMAN SCHONFELD
date: 1997-04-17 17:35:00
subject: DJGPP OPTIMIZATIONS

HS>Carey, I've seen my program optimized for both.
HS>The difference is un-noticeable.
HS>It's not worth specifing your program to a rare target.
CB>Then good for you.
CB>However, in most cases, enabling at least 486+ optimizations do give a
CB>measurable improvement.  I've done a number of programs where simply
CB>adding the -m486 option will improve things by at least 10%.  (Of
CB>course, I've also had a number of cases where adding too many
CB>optimization switches (loop unrolling, inlining, etc.) slow the program
CB>down, but that's another story...)
CB>And, well, I can't see how you'd call 486 or 586 optimizations a 'rare'
CB>target considering most PCs are at least 486+ class machines, where both
CB>486 and 586 optimizations are acceptable.  It might be different in zone
CB>3 (where ever that is).  I don't know.  But in most places, 486+ far out
CB>number the few 386 computers left.
Then good for you.
Maybe some people don't rely on compilers to compile the fastest code 
possible.
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