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    <div class="moz-cite-prefix">Thanks Liviu.<br>
      <br>
      On 12/17/2013 02:55 PM, Liviu Chircu wrote:<br>
    </div>
    <blockquote cite="mid:52B049DF.8070003@opensips.org" type="cite">
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      <div class="moz-cite-prefix">Hello Ionut,<br>
        <br>
        I would consider increasing the UDP buffers first. Here are the
        default sizes in the 3.2 kernel:<br>
        <br>
        <i>liviu@Workstation:~$ cat /proc/sys/net/ipv4/udp_wmem_*</i><i><br>
          4096<br>
        </i><i><i>liviu@Workstation:~$ </i>cat
          /proc/sys/net/ipv4/udp_rmem_*</i><br>
        <i>4096</i><br>
        <br>
        If you see they are still getting full after setting them to
        16MB, for example, then you need extra workforce from OpenSIPS.<br>
        <br>
        Best regards,<br>
        <pre class="moz-signature" cols="72">Liviu Chircu
OpenSIPS Developer
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
        On 12/17/2013 02:45 PM, Ionut Muntean wrote:<br>
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      <blockquote cite="mid:52B0475B.7090501@gmail.com" type="cite">
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        <div class="moz-cite-prefix">Hi,<br>
          <br>
          So if <i>Send-Q</i> and <i>Recv-Q </i>are above 0 for say,
          half a second, that means that the buffers are getting
          constantly full and there is need for more opensips children?<br>
          <br>
          BR,<br>
          Ionut<br>
          <br>
          On 12/17/2013 02:42 PM, Miha wrote:<br>
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        <blockquote cite="mid:52B046B2.4070604@softnet.si" type="cite">
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          tnx!<br>
          <br>
          see now it is 0.<br>
          <br>
          br,<br>
          miha<br>
          <br>
          <div class="moz-cite-prefix">Dne 12/17/2013 1:40 PM, pi&#353;e
            Liviu Chircu:<br>
          </div>
          <blockquote cite="mid:52B04644.5040500@opensips.org"
            type="cite">
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            <div class="moz-cite-prefix">You don't see the <i>Send-Q</i>
              and <i>Recv-Q</i> columns?<br>
              <br>
              liviu@Workstation:~$ netstat --version<br>
              net-tools 1.60<br>
              netstat 1.42 (2001-04-15)<br>
              <pre class="moz-signature" cols="72">Liviu Chircu
OpenSIPS Developer
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
              On 12/17/2013 02:26 PM, Miha wrote:<br>
            </div>
            <blockquote cite="mid:52B042DB.6090908@softnet.si"
              type="cite"> Liviu,<br>
              <br>
              just one thing. How can I monitor opensips buffers to see
              if they are getting full?<br>
              <br>
              whith <i>watch -n0.1 'netstat -ulnp </i>I can see on
              which port and protocil opensips is listening.<br>
              <br>
              tnx!<br>
              <br>
              miha
              <div class="moz-cite-prefix">Dne 12/17/2013 12:48 PM, pi&#353;e
                Liviu Chircu:<br>
              </div>
              <blockquote cite="mid:52B03A09.6000400@opensips.org"
                type="cite">
                <div class="moz-cite-prefix">You could monitor the UDP
                  receive queue on your interfaces with:<br>
                  <br>
                  <i>watch -n0.1 'netstat -ulnp'</i><br>
                  <br>
                  If you constantly see your OpenSIPS listening
                  interface buffers getting full, then you need more
                  than 8 SIP workers.<br>
                  <br>
                  Best regards,<br>
                  <pre class="moz-signature" cols="72">Liviu Chircu
OpenSIPS Developer
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
                  On 12/17/2013 12:56 PM, Miha wrote:<br>
                </div>
                <blockquote cite="mid:52B02DF6.6080803@softnet.si"
                  type="cite"> Liviu,<br>
                  <br>
                  tnx I am using DB queries, exec commands (this
                  happends only for sending mail due to some abuse, very
                  very <span id="result_box" class="short_text"
                    lang="en"><span class="hps">rarely</span></span>),
                  enum lookup, radius for accouting, load_balancing,...
                  and CPU has 8 cors.<br>
                  <br>
                  I have set number of children to 8. Is there any way
                  to determine if this is ok or how will I know? Is it
                  better to use 12?<br>
                  <br>
                  br,<br>
                  miha<br>
                  <br>
                  <br>
                  <div class="moz-cite-prefix">Dne 12/17/2013 11:37 AM,
                    pi&#353;e Liviu Chircu:<br>
                  </div>
                  <blockquote cite="mid:52B02984.2000600@opensips.org"
                    type="cite">
                    <div class="moz-cite-prefix">Hello,<br>
                      <br>
                      There is no simple answer, choosing the
                      appropriate number of children is
                      scenario-dependant.<br>
                      <br>
                      If, for example, you are not performing I/O
                      operations (DB queries, exec commands, etc.), then
                      the number of children should be dictated by the <b>number

                        of cores</b> on your box.<br>
                      <br>
                      On the other side, when your SIP workers will
                      perform lots of disk operations (which are slow),
                      then you should use a lot more children than
                      mentioned above. (e.g. 12, 16 or 20 children).<br>
                      <br>
                      Best regards,<br>
                      <pre class="moz-signature" cols="72">Liviu Chircu
OpenSIPS Developer
<a moz-do-not-send="true" class="moz-txt-link-freetext" href="http://www.opensips-solutions.com">http://www.opensips-solutions.com</a></pre>
                      On 12/17/2013 09:56 AM, Miha wrote:<br>
                    </div>
                    <blockquote cite="mid:52B0039B.8070905@softnet.si"
                      type="cite">Hi, <br>
                      <br>
                      how to dermine how many children do I need
                      (default I have 4)? <br>
                      I did not find any appropriate explanation. <br>
                      <br>
                      tnx! <br>
                      <br>
                      miha <br>
                      <br>
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