Hi! I said my opinions about speed here in this mailing list already, I summarized this in the Frugalware mailing list: http://frugalware.org/pipermail/frugalware-devel/2007-January/003043.html http://frugalware.org/pipermail/frugalware-devel/2007-February/003197.html I implemented 4.) + a repo converter about one month ago and some group specific operations are much faster with this patch on my machine. But I'm disappointed now because I realized that 6.) is the real problem which we cannot do too much with. So I won't implement 1-5.) => this patch is worthless (and not the most optimal, because I wanted to do a proof of concept only and show how my ideas work, a deeper rewrite needed to radically speed up these parts of pacman); but you may find some interesting parts in it ;-) Bye, Nagy Gabor Summary: We can radically reduce hdd reading with these tricks except ldconfig :-(