Beefy Boxes and Bandwidth Generously Provided by pair Networks
more useful options
 
PerlMonks  

Comment on

( #3333=superdoc: print w/ replies, xml ) Need Help??

Firstly, I have been using 64-bit Perl more or less exclusively for the past few years on a variety of Linux, Windows, and Mac systems, with 50+ modules (many of them XS, don't have an exact count on that, though), and have had zero issues that would have been avoided with a 32-bit Perl.

Secondly, my own anecdotal experience shouldn't mean squat to you. :-) Fortunately, the Perl module ecosystem (and Perl itself) are blessed with some of the best unit tests in the industry (see Test::More for a start). As long as your own software also has good unit tests, you are already a long way to verifying your installation.

Thirdly, if you still have any doubt, it's worth questioning whether 64-bit Perl would actually make any substantial difference in your installation. By themselves, 64-bit programs do not inherently outperform their 32-bit counterparts. There are a couple of cases where they do:

  • (The big one): Your program needs to access more than ~3GiB of RAM, go with 64-bit
  • 64-bit architectures have additional registers that can (at the C compiler level) be used to optimize some compute-intensive routines. Benchmarking is the only sane way to tell whether this will be worthwhile.

However, there's a downside: 64-bit programs are larger (again, depends, but I've seen 10-30%), and consequently use more RAM, which can increase memory traffic, which can actually degrade performance a little. Probably not terribly significant, but again, benchmark.

For "SAN Management Servers", you are probably not using significant RAM or doing anything computationally expensive (think: decoding human genome, solving chess, etc.), so to be honest, it's probably not going to make a huge difference. So, as above, unit tests (and your own functional and integration testing) will guide you.


In reply to Re: Using 64 Bit Perl for Production Scripts. by wanna_code_perl
in thread Using 64 Bit Perl for Production Scripts. by pmu

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post; it's "PerlMonks-approved HTML":



  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.
  • Log In?
    Username:
    Password:

    What's my password?
    Create A New User
    Chatterbox?
    and the web crawler heard nothing...

    How do I use this? | Other CB clients
    Other Users?
    Others wandering the Monastery: (9)
    As of 2015-07-04 10:53 GMT
    Sections?
    Information?
    Find Nodes?
    Leftovers?
      Voting Booth?

      The top three priorities of my open tasks are (in descending order of likelihood to be worked on) ...









      Results (59 votes), past polls