[pacman-dev] [GIT] The official pacman repository branch, master, updated. v3.0.0-585-g2f55733

[Dan McGee]

On Nov 19, 2007 5:31 AM, Nagy Gabor <ngaba at bibl.u-szeged.hu> wrote:
> > commit c244cfecf654d34032585530f00d68501ec63d77
> > Author: Dan McGee <dan at archlinux.org>
> > Date:   Mon Nov 12 23:01:14 2007 -0600
> >
> >     Move alpm_splitdep usage to db_read
> >
> >     Holy inefficient batman! For a pacman -Qt operation (when we are using
> >     compute_requiredby and not database entries), splitdep was being called
> > ~1.3
> >     million times on my local database. By splitting when we read the DB, we
> >     drop this number to around 1700 and save a LOT of time in doing so (a 5x
> >     increase in pacman -Qt speed here).
> >
> >     Note that the depends alpm_list_t in the package struct is no longer a
> >     string list, but a list of pmdepent_t objects.
> >
> >     Signed-off-by: Dan McGee <dan at archlinux.org>
> Small note: Storing pmdepend_t in pkgcache eats much more memory.

Static length strings are what really kill us, so that is where the
effort should be focused. I believe Aaron is going to address this.

-Dan