[sf-perl] making perl compile phase faster

Fred Moyer fred at redhotpenguin.com
Fri Apr 29 19:18:05 PDT 2011

Or you can always use the gold standard, mod_perl.  Put your programs
into handlers, and use LWP to run them.

2011/4/29 Christopher Taranto <christopher at tokpela.com>:
> These look pretty old but maybe they are worth looking at.
> http://search.cpan.org/dist/PPerl/
> http://daemoninc.com/PersistentPerl/
> On Fri, Apr 29, 2011 at 12:30 PM, Michael Friedman
> <friedman at highwire.stanford.edu> wrote:
>> I'm having a lucky day, so why not test it...
>> At my site, we run a lot of command-line perl scripts. Unfortunately, we
>> also have 2794 perl modules. Some of our scripts load up thousands of lines
>> of perl code before they can do anything, even display a usage statement.
>> Generally, from the time you hit <return> it's at least 5 seconds before
>> anything happens, often longer, because perl has to load in all the required
>> modules.
>> At one point, I looked into using SelfLoader and making every method into
>> an autoloaded method, but that failed on some of our important modules
>> because they were not coded to be as... we'll go with "clean"... as I would
>> like. And since we have thousands of modules, any solution has to be
>> automated across nearly everything to work. I can't get in the way of the
>> rest of the development team's work, even for a noticeable performance gain.
>> So, let me ask y'all:
>> 1. Is there anything approaching a "perl compiler" these days? (Something
>> that does the compile stage early and lets you then just run the binary
>> later.)
>> 2. Is there a better option than SelfLoader now, for only compiling the
>> methods that you are actually using instead of all of them? (As you would
>> guess, a 1,000+ line perl module has a lot of things in it that you don't
>> need for any one script.)
>> 3. Are there ways of marking up methods so they don't get parsed and
>> compiled until they're needed?
>> Thanks for any advice, tips, or tricks!
>> -- Mike
>> PS - We aren't using Moose or anything like that. All the modules are
>> hash-based, generic Perl objects and function libraries. If there's a class
>> structure framework or something that could take care of this partial
>> compilation for me, that'd work too.
>> ______________________________________________________________________________
>> Mike Friedman | HighWire Press, Stanford Univ |
>> friedman at highwire.stanford.edu
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