"Over the last few days, I've taken a good hard look at
performance issues related to Sabayon and Gentoo. Several people
have noted that Sabayon seems slow, so I tested out 3.4e. I noticed
that Portage was horrendously slow, and discovered the first
culprit - Beagle, a search tool that is enabled by default under
Sabayon. I talked to Fabio (the Sabayon guy) about this and he is
going to look into disabling it by default in the next release,
since it can potentially have such a negative impact on system
performance, particularly Portage performance.
"However, even without Beagle, it still appeared that Portage
was having severe performance issues with emerge -up world..."