Re: [gentoo-user] Re: Gentoo's advantage: "optimized for your system" -- huh?

[Sebastián Magrí]

El mié, 04-02-2009 a las 14:03 +0100, Momesso Andrea escribió:
> On Wed, Feb 04, 2009 at 08:58:23AM +0200, Alan McKinnon wrote:
> > On Wednesday 04 February 2009 01:48:34 Nikos Chantziaras wrote:
> > > So all in all, I agree.  Using Gentoo is nowadays not so much a matter
> > > of performance optimization but of better control of how to build the
> > > packages and the rolling release nature (I'm tired of major updates
> > > every 6 months in the majority of binary distros.)  I also like the USE
> > > flags which let me chose how to build something and get rid of
> > > dependencies I don't need.  Administrative features like dispatch-conf
> > > are also very useful.
> >
> > This is the main benefit of Gentoo for me. I have to use SuSE or RHEL at work
> > for the database machines - Sybase will not support any other other distro -
> > and the 1G+ base install from those distros drive me nuts. Contrast that with
> > the DNS caches which run FreeBSD, the difference is about a factor of 5 if
> > not more.
> >
> > I also get sick and tired of installing postfix on a database machine purely
> > to send nagios alerts, and watching the distro "helpfully" want to pull in
> > PostgreSQL, MySQL, LDAP, SASL, Courier and some fancy MTA-switcher thingy.
> > All because the maintainer enables those features and now I gotta have them.
> >
> > No thanks. Rather give me USE so I say what goes on the box.
> >
> > --
> > alan dot mckinnon at gmail dot com
> >
>
> Often on gentoo related IRC chanels comes someone who asks why his
> firefox-bin (or openoffice-bin or *-bin) runs faster than his
> built-from-source firefox.
>
> Usually chan's gurus answer that upstream packagers use all the possible
> compiler optimizations (CFLAGS LDFLAGS etc.) for the given package,
> while the average gentoo users keeps a set of "system wide very safe
> optimizations" that are good for most packages, but not the best for
> every particolar package.
>
> Is that statement correct?
>
> =======
> TopperH
> =======

I've always felt the compiled openoffice faster than the binary one, but
if it is not the case portage also gives you the chance of establishing
per-package optimisations  on '/etc/portage/env/' or in the paludis
bashrc, so if one user wants an particular app to go faster, he can
research about the best way to build this one. This way, the user can
keep the very safe optimisations for the rest of the system and some
-unsafe optimisations- for the packages he want.

It is more about choices...