Choosing a read() buffer size is largely arbitrary. Making it bigger might help but you'll have to test to know for sure.

My preference would be to just use CGI.pm or Apache::Request (if running under mod_perl) to handle the upload. Chances are their method will be as fast, and far more reliable, than anything you or I would create independently. Just think about how much testing these modules have undergone! How much testing will you do with your code?

-sam

PS. I first misread your question as being about sending files fast. I dove into my copy of the Eagle book and dug out $r->send_fd($fh), which is a really fast way to send files to clients under Apache/mod_perl. No need to loop - just one call and Apache handles the rest with blazingly fast C code that might even use the sendfile() system call if you're lucky. Unfortunately I don't know of anything similar for handling file uploads.


In reply to Re: optimization of browser upload by samtregar
in thread optimization of browser upload by Baz

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.