I usually use a while<filehandle> loop to run through the file line-by-line and do my work . But for a a new script I had to do a global search on the input file because it has a unique 80 chars per line file and I have to no way of knowing if & where my search string will be split at new line "\n" or other control characters. Now when i try to load the whole file into a string and then do a pattern match by

my $data = do {local $/; <FILE> }; #do pattern match

This gives out of memory error as expected for even file few hundred MB's in size

My question here is can we modify the memory allocated to perl kind of like we can configure JVM memory allocation(I m primarily a j2ee programmer). More so because we run these script on enterprise servers with lots of memory


In reply to Out of memory by sandy105

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.