amd64 optimized gcc?
kris at obsecurity.org
Thu May 26 09:18:10 PDT 2005
On Thu, May 26, 2005 at 12:12:39PM -0400, Mike Jakubik wrote:
> On Thu, May 26, 2005 11:56 am, Kris Kennaway said:
> > On Thu, May 26, 2005 at 10:13:35AM +1000, Michael VInce wrote:
> >> for warranty to come through on my old one. I did a buildworld under
> >> 'CPUTYPE=athlon64' in make.conf and 'CFLAGS=
> >> -O2 -pipe -funroll-loops' for the the kernel.
> >> I also used both to build all my ports including xorg and KDE.
> >> All this combined has made my laptop feel a lot faster.
> > Google for 'placebo effect' :-) Unfortunately, leet optimization flags
> > do not measurably effect everyday system performance, only specific
> > CPU-intensive operations.
> Tell that to the Gentoo people :)
There's nothing wrong with appropriately chosen optimizations (but
e.g. -funroll-loops is probably stupid), but pretending you can "feel
the power" is self-deception.
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