On Mon, May 13, 2002 at 10:40:20PM -0500, Michael D. Crawford wrote: > I don't know, but I would very much like to recompile glibc, the Xlib, and > the gnome libraries to be optimized for the different processors I'm > running. I'd be careful using any optimisations on these fairly critical libraries; the fairly common mantra is optimising glibc is bad, optimising glibc is bad... > Recompiling the kernel to optimize for a particular processor is a > significant performance boost but it would help to optimize the libraries > too. I've only ever seen one person offer figures to back up this assertion; last year there was a thread about this, and the conclusion seemed to be 'good idea, but a huge effort for not much gain' (~5% IIRC). > Recompiling glibc is a bit risky because you can make your machine > unbootable if you make a mistake. Hmmm...I don't think this is quite true. You might not be able to enter a 'normal' run level (2,3,4,5) because the init scripts would not be able to execute the dynamically-linked /bin/sh (usually bash or ash). You can, of course, boot directly into sash, a statically linked shell, and repair any damage you might have caused. -rob
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