>From what I have seen you will see noticable improvements in terms of performance as the applications are tailor made and optimized for the hardware. I can give you a two examples. On a xen based vps running gentoo, granted i have no website or anything on there just mysql and apache. the memory foot print is around 62mb out of 2G.
Another example is my gentoo laptop with a fully fledged kde installation. Ubuntu with its unoptimized packages minimum needs 2G. Gentoo minimum logged into the desktop with nothing running 420mb of ram. I see considerable differences. I am looking forward to putting some content to host there, but I am working on some additional hardening features at the kernel level such as SEL, grsec and PAX. Regards >> due to its customizability and how everything is compiled for a >> particular >> system. Has anyone used Gentoo in an HPC application? > > not so much, I suspect. at my org, we have our hands full dealing > with slow-changing distros like centos. what would really be interesting > is if someone could show a tangible benefit to the compile-from-scratch > approach - a measurable and consistent improvement in some applications' > performances, for instance. > > for single-purpose facilities, it might make a lot of sense. certainly > mechanisms like environment modules would be asinine in that context. > > I do often wonder how much our systems are pessimized by conservative > compilation, especially the use of PIC (by way of shared libraries) > and avoidance of LTO. > > regards, mark hahn. > _______________________________________________ Beowulf mailing list, Beowulf@beowulf.org sponsored by Penguin Computing To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
