[LAU] Performance tuning audio apps

I'm trying to squeeze the last little bit of juice out of my EEE. The CPU I have is this: http://restivo.org/projects/eee/cpu.txt This nifty script at http://www.pixelbeat.org/scripts/gcccpuopt , says I should use "-march=core2 -mtune=pentium -mfpmath=sse" However, the Gentoo people (who I take to be an -funrollloops authority on performance tuning), say I should "-march=core2 -mtune=generic -fomit-frame-pointer -pipe". And then there is -march=native which many say is just easier and faster. And others recommend putting "-msse2" and other such things. What say you-all? I want to maximize the efficiency of, in particular, LinuxSampler, CALF/CAPS/TAP/GUTARIX plugins, AZR3, and Fluidsynth, but keep them super-stable as they have been. Thanks! -ken