Tools for Perl Persistence part of Perl for the Web Many tools
exist for adding persistent performance to Perl-based Web
application environments. Products such as mod_perl, FastCGI,
VelociGen, and PerlEx provide persistence for Web applications
on a wide variety of platforms using widely varying
architectures. This list is far from complete, although it is a
sampling of the most common tools available at the time this
book was written. In fact, most readers are likely to run across
one of these toolsmod_perlmuch more often than all the rest
combined. This is simply because the server for which it is
written, Apache, is the single most popular Web server in the
world. Each product has its strengths and weaknesses, though.
Thus, the decision to use one over another is based as much on
the Web application being deployed as on any comparison among
the tools. A combination of approaches also is possible. One
product, VelociGen, uses a variety of architectures to provide a
range of possible solutions based on envi