I knew you wouldn't. Because you obviously don't know how.

Demonstrate for your fellow Monks,

I already did 500+ times.

Meanwhile a search for your threaded code contributions turns up one hit. And there's no code in that either.

how throwing 500 threads at this problem is justifiable and necessary.

Simple math. You have 2000 SaaS servers from which to retrieve data, that takes them 10 seconds to prepare and return.

Using 4 threads: 2000*10/4 = 5000 seconds = 1hr 23 minutes elapsed.

Using 100 threads: 2000*10/100 = 200 seconds = 3.3 minutes elapsed.

Using 500 threads: 2000*10/500 = 40 seconds elapsed.

You need another demo? 

[ 0:35:30.57] c:\test>t-head-urls -THREADS=4 urls.list
Processed 2040 urls
Took 424.354000 with 4 threads

c:\test>t-head-urls -THREADS=8 urls.list
Processed 2040 urls
Took 215.305000 with 8 threads

c:\test>t-head-urls -THREADS=16 urls.list
Processed 2040 urls
Took 123.232000 with 16 threads

c:\test>t-head-urls -THREADS=32 urls.list
Processed 2040 urls
Took 90.033000 with 32 threads

c:\test>t-head-urls -THREADS=64 urls.list
Processed 2040 urls
Took 88.804000 with 64 threads

[download]

You see where that's headed?

So now it is (way past) your turn. Ante up if you can.

With the rise and rise of 'Social' network sites: 'Computers are making people easier to use everyday'
Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.

The start of some sanity?

In reply to Re^4: Forking Multiple Threads by BrowserUk
in thread Forking Multiple Threads by anshumangoyal

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.