Optimizing Linux kernel, libraries, software

I've installed Linux Slackware 9.1. This distribution is compiled for 486 architecture. I've got P4 class processor and want use this machine as production server, so I would like to know, how to optimize the system for best performance. I want to compile all the software from source code, let these use all P4 processor features. But I think, I have to recompile libc/glibc frst, because these are compiled for 486, too (don't know how to do it). Then I have to compile new kernel with P4 support (this is not problem, but I don't know, wheter linux kernel uses libc/glibc). I have no idea about order of these steps. Short, what I need to know:
a) Do I have to recompile libc/glibc, how?
b) Does the kernel use libc/glibc?(have to compile kernel after libc/glibc recompilation?)
c) How to compile programs to force compiler to use P4 features and newly recompiled libc/glibc libraries
Every idea or links will help.
Thanx
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karelrambousekAsked:
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bobgunzelCommented:
In that case you'll have to get the sources and the slackware build-files, like gcc.SlackBuild, change the options parameter to O3 and use pentium4 for the -march and -mcpu options.
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bobgunzelCommented:
Basically compiling for a specific processor affects only the kernel. You don't need to recompile the software. So you only have to build a new kernel.

Bob Gunzel
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karelrambousekAuthor Commented:
This is not true!!! If I use old libc/glibc compiled for 486 CPUs, the performance won't be the best. This question is not easy, I know.
So waiting for your answers. EXPERTS !!! :)
Thanx
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