RE: Optimizing for PentiumMMX?
> With this in mind, and an old 200Mhz PentiumMMX lying around, I decided to
> have a go at building an optimized box without having to risk my regular box
> to the hazards that presents.
>
I have a laptop that is a 233. Compiling C++ apps will hurt, optimization or
no. KDE is *HUGE* and it really beats up the compiler. One of the best
optimizations you can do is make sure you have lots of memory and swap space
available.
>
> Now my understanding of the standard build process is that when I run
> ./configure in the root of the sources, it should notice that it's running on
> a i586 and set something in the make files to ensure that GCC optimizes for
> i586 when I run make. However, when I run file on a binary that I've build, I
> get:
> ELF 32-bit LSB shared object, Intel 80386, version 1 (SYSV), not stripped
>
> Therefore, I can't help but think I'm missing something important to get the
> best optimizations for this box.
>
apt-get install pentium-builder and read the docs.
> So, after all that ;-) what would be the best way to fully optimise this box,
> starting from a base install plus development stuff?
>
> Should I re-build GlibC before compiling anything else?
> Are there any other libs I should re-build?
> Should I rebuild GCC as well?
> Do I need to specify special options to ./configure to get better
> optimizations?
>
you definately want to have glibc and gcc built.
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