What the working non-threaded stuff does is this:

Looks for DHCPACK in logs.
Parses MAC from it.
Checks with a http server which responds with a pass/fail.
If http response is success, sends a RADIUS packet for Authentication.

Apart from this, I need to monitor MACs that have failed and also those that have passed continuously.

What I am worried about in my non-threaded model is that when several DHCPACKs come at the same time and one request takes a little longer than expected, it will block all the other MACS in queue => Hence threads to do the API and RADIUS checks.

As mentioned in my earlier post , pumping 10 DHCP acks into the log files saw 10 threads being created simultaneously. BTW, not implemented the radius part yet. ONly the pass/fail part is being tried.

Each response takes roughly 1 second in the network normally. The first thread does that but then it progressively worsens . The 10th takes 8 seconds. The reason I *think* is how the threads are scheduled and the join. From what I have read it looks like join blocks the other threads. So if you look at the 10th thread, it is blocked by the 9 threads before by their joins.

I even tried detach instead of join. Again, it progressively worsens as it reaches the 10th thread. I dont know why.

I am looking at ways to for each http call to take roughly the same time and finish and be able to have a hash in the main thread w the status for each MAC I have encountered.


In reply to Re^5: Should I use threads? Perl/DHCP/Radius by MonkeyMonk
in thread Should I use threads? Perl/DHCP/Radius 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.