<br><br><div class="gmail_quote">2012/1/14 Dmitry Kolesnikov <span dir="ltr"><<a href="mailto:dmkolesnikov@gmail.com">dmkolesnikov@gmail.com</a>></span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div bgcolor="#FFFFFF"><div>Hi,</div><div><br></div><div>Look like a side effect caused by NIC drivers.</div><div>Just curious, have you done any kernel level optimisation?</div><div>BTW, what os, NIC, kernel and erlang config we are talking about?</div>
<div><br></div><div><br></div><div>- Dmitry<div><div class="h5"><br><br>On 14.1.2012, at 11.07, Max Bourinov <<a href="mailto:bourinov@gmail.com" target="_blank">bourinov@gmail.com</a>> wrote:<br><br></div></div></div>
<div><div class="h5"><blockquote type="cite"><div><div>Hi Erlangers,</div><div><br></div><div>I have Erlang OTP application that heavily utilizes exmpp. When I run it under the load I see very strage system behavior in munin (this is system monitoring tool).</div>
<div><br>
</div><div>The graph I see is the following: <a href="http://img829.imageshack.us/img829/259/irqstats.png" target="_blank">http://img829.imageshack.us/img829/259/irqstats.png</a></div><div><br></div><div>At the same time CPU and memory consumption grows too, but this is expected behavior. Does anybody had similar issue? What coud be the reason?</div>
<br clear="all"><div>Best regards,</div><div>Max</div><br><br>
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<br></blockquote></div><div><br></div><div>Hello Dmitry,<br></div><div><br></div><div>I work with Max and try to answer on your questions. We use Linux ubuntu 3.0.0-12-server x86_64 operation system and erlang R14B02 (erts-5.8.3). Now we made only kernel tuning (<a href="http://www.metabrew.com/article/a-million-user-comet-application-with-mochiweb-part-1">http://www.metabrew.com/article/a-million-user-comet-application-with-mochiweb-part-1</a>) .</div>
<div><br></div><div>Thank you.</div><div><br></div>