Okay, so where's the code?

You just had to follow the link provided by davido to find an example. It took me 5 minutes to change it, despite I never used Mojo before: 

use 5.010;
use strict;
use warnings;

use Mojo::UserAgent;
use Mojo::IOLoop;
use Mojo::URL;

# FIFO queue
my @names = qw(zezima fred bill john jack);

# User agent following up to 5 redirects
my $ua = Mojo::UserAgent->new( inactivity_timeout => 1 );

sub url_for_name {
    my $name = shift;
    return "http://rscript.org/lookup.php?type=track&time=62899200&use
+r=$name&skill=all";
}

# Crawler
my $crawl;
$crawl = sub {
    my $id = shift;

    return unless my $name = shift @names;
    say "Looking for $name";

    # Fetch non-blocking just by adding a callback
    $ua->get(
        url_for_name($name) => sub {
            my ( $ua, $tx ) = @_;

            my $body = $tx->res->body;
            if ( $body =~ m/gain:Overall:\d+:(\d+)/i ) {
                say "$name $1";
            }
            elsif ( $body =~ m/(ERROR)/i ) {
                say "$name doesn't exist";
            }
            else {
                say "$name 0";
            }

            # Next
            $crawl->($id);
        }
    );
};

# Start a bunch of parallel crawlers sharing the same user agent
$crawl->($_) for 1 .. 4;

# Start reactor
Mojo::IOLoop->start;

[download]
And if you do, betcha it takes you 10 times longer to write; requires 10 times... less efficiently...

And that is just rubbish, especially talking about efficiency. I handled hundreds of simultaneous connections with AnyEvent::HTTP, and it didn't really consume a lot of CPU or memory, with threads it would went to swap.

In reply to Re^8: Consumes memory then crashs by zwon
in thread Consumes memory then crashs by allhellno

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.