I can't answer questions 1 or 2, but you can gain some speed by replacing the regular expressions in your script by substr

for example /^N/ to substr($a,0,1) eq 'N'
extract a thumb_id by using $id = substr($a,1)

you would probably do better performance wise to store the ID's in a hash with the ID as a key and the Y and N as the value, or have an array for approved and one for not approved, then grep to see if IDs are approved or not.

Your &check_image function can also be called from a &check_images wrapper that accepts a list of images and forks several &check_image instances. That will really speed up things since it has to go over the web.

Touching a bit on question 1 after all... if you store that hash or two perl arrays (Y and N) in a file using the FreezeThaw module you don't need to parse the data for approved/not everytime you read it in. Just an idea.

Hope something up there was helpful...

Tiago

Update: as you mentioned, Mysql will probably be faster once a certain number of ID's is cached, and use numeric fields and enum for Y/N. a variable length table (varchar, glob, text) will not perform as well. LIKE is also evil in that sense.

In reply to Re: I need speed... by tstock
in thread I need speed... by kbeen

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.