linuxcaffe; distros and desktops

[Francois Ouellette]

I guess the best optimization is to start with good source code and
consistent programming practices! Remember decision tables? Probably not,
they don't teach those things anymore... But many years ago when memory
was outrageously expensive and processor speeds were a fraction of what we
get today, every bit (literally) of optimization had its value in a
program.

You can find interesting optimization articles on the AMD web site, go to
the "Technical Documentation" section and select a processor, such as the
Athlon. The general optimization examples can apply to any x86 processor.

 François Ouellette
<fouellet-cpI+UMyWUv9BDgjK7y7TUQ at public.gmane.org>

> On Sat, Oct 30, 2004 at 03:20:11PM -0400, Noah John Gellner wrote:
>> I have been wondering about the differences between -O2 and -O3. I
>> typically use -O2, but I am starting to experiment about -O3. For a P4
>> 2.4 w/ 684M of RAM, should -O3 be faster?
>
> -O3 is documented as turning on some optimizations that _will_ break
> certain code.  Most code will work fine, some code will not work
> correctly, or perhaps even at all.  Also for most code, don't expect a
> measureable difference.
>
> Lennart Sorensen

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