I've found that using Tie::File for large files (like yours) has not given me the performance I was seeking. Is it possible for you to divide your process into two steps, one to parse the file and store the relevant components into a relational database, and the second to process the various components according to your needs, using the power of the relational database? I've had good success with Oracle and MySQL ...

Update: Yeah, like Fletch said. Curse those johnny-on-the-spot monks! :)


No good deed goes unpunished. -- (attributed to) Oscar Wilde

In reply to Re: Moving from hashing to tie-ing. by ptum
in thread Moving from hashing to tie-ing. by eff_i_g

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!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • 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, details, 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, summary, 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.