Performances using --with-perl

I tried to search through mailing lists archives, but I didn't find any
thread about this issue. If you compile Perl to use shared library
libperl.so instead of static libperl.a, Perl documantation says that this
can decrease performances up to 15%. But, this is necessery to do to get
Postgres compile with "--with-perl" option. Are there performances
implications in PL/Perl stored procedures and Postgres itself? Then, if this
libperl.so installation of Perl is used with mod_perl and DBD::Pg, are
performances still good like with static libperl.a installation?

My company decided to give us (SysAdmins, programmers) a chance to try some
open source database and we decided to try PostgreSQL. So, I have to install
new installation of PostgreSQL, Apache, PHP, mod_perl, Mason, DBI and
DBD::Pg. Are there any recommendations how to do this? I mean just about
installing Perl and Postgres "--with-perl", I am already experienced with
the rest of software.

Are there people with some experience with mod_perl and DBD::Pg combination?
Any help will be appreciated. Thank you in advance.

Regards,
Boban Acimovic
UNIX SysAdmin