> > Many thanks for this help. > > Do you know if this also works if you replace i386 packages with > > recompiled i686 ones? If so has anyone actually benchmarked a system > > with a standard install vs the same packages recomiled to i686. > > The reason I ask is that my requirement for linux is for intensive > > number crunching and so to get a 5% to 10% performance > > increase would be > > sufficient justification for recompiling - on the other hand > > no good if > > you can't kickstart from it. > > cheers > > I think redhat only uses CPU specific rpms for the kernel and glibc. That seems to get most of the gain you would get for CPU specific compiles. Chuck