I don't think this will help that much. There is buffering going on under the surface with stdio anyway and it should pick a good blocksize based on the device it is reading from.

The optimimum blocksize is returned by stat as Zaxo pointed out in a recent post. You could use an approach similar to this one (although the seeks are a really bad idea) and choose a multiple of that blocksize if your lines are usually bigger than it is but you would incur the overhead of breaking it up into lines. You are probably better off leaving that to the lower level routines.

-sauoq
"My two cents aren't worth a dime.";

In reply to Re: Re: Fastest I/O possible? by sauoq
in thread Fastest I/O possible? by Anonymous Monk

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.