On Sat, Mar 18, 2000 at 03:18:45AM +0100, Thomas Köllmann wrote:
> | Perhaps this is a bit off topic, but can the pentium optimisations be used
> | for AMD K6 processors?
>
> I did a `make world' yesterday with
> CFLAGS= -O2 -pipe -march=pentium
> COPTFLAGS= -O2 -pipe -march=pentium
..snip..
> If it doesn't I'll probably try `-03 -pipe -march=pentium' come next
What are people hoping to get by doing this? Are you actually doing a
scientific performance evaluation between the various optimization
options??? Are are people just being macho, and thinking they are
getting all this non-existent performance increase?
"-O" is the only globally safe optimization on FreeBSD. -O2, etc..
causes various problems for various people in various ports, and parts of
/usr/src/. If people are using these options just for fun, that is fine,
BUT if you experience *any* problems with compiling using -O2, etc..
don't bug this list -- go bug the GCC people.
--
-- David ([EMAIL PROTECTED])
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