How about them optimizations?
roop at hqst.com
Tue Feb 10 12:14:39 PST 2004
Part of my current /etc/make.conf on my 5.2-CURRENT box looks like:
CFLAGS= -O2 -pipe -fomit-frame-pointer -mmmx -msse -m3dnow -mfpmath=sse
COPTFLAGS= -O -pipe
Now what I'm wondering is if those extras like mmmx msse actually do
only reason they're in there is because I saw them on a website about
use to optimize gentoo. I had nothing better to do so I recompiled the
them. I didn't really notice anything good or bad happening after that.
I did have
to mess around with a couple of makefiles to get around the
that O2 introduces. Besides that, though, are there any advantages or
to compiling with those optimizations and switches?
Does -mfpmath=sse actually do anything relevent for the FreeBSD world? I
what the GCC manual says about it but I'd rather hear some real world info.
An enquiring mind wants to know.
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