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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Mike<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, September 24, 2010
2:41 PM<br>
<b><span style='font-weight:bold'>To:</span></b> '<st1:PersonName w:st="on">Asterisk
Users Mailing List - Non-Commercial Discussion</st1:PersonName>'<br>
<b><span style='font-weight:bold'>Subject:</span></b> [asterisk-users] Asterisk
1.62.13 - CPU spikes every 10 minutes</span></font><font size=3
face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=FR-CA style='font-size:
11.0pt'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=FR-CA style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=FR-CA style='font-size:
11.0pt'>I've been getting regular CPU usage spikes(50%-80%), due to asterisk
(according to <i><span style='font-style:italic'>top</span></i>). I never
noticed this on 1.4, and I have top running in the background pretty much all
the time. In between those spikes Asterisk stays under 10% CPU usage (I have a
transcoder card, which helps).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=FR-CA style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=FR-CA style='font-size:
11.0pt'>It's very regular, never any missed spike, or any spike in between the
regular spikes. I don`t have cron job running every 10 minutes
(asterisk-related or not).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=FR-CA style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=FR-CA style='font-size:
11.0pt'>Because it's so regular, I don`t think it's anything in my
dialplan. If it was it would be more random. SIP peers are reregistering
every 60 seconds, so the spikes would be every minute if that was the
problem. There is no "scheduled" attack from outside that I know
of, network traffic (calculated from the switch port and the server) does NOT
spike. Memory is very stable at a low value.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=FR-CA style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=FR-CA style='font-size:
11.0pt'>Does anyone have an idea of where to start looking? Can Asterisk report
somehow what is causing this?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span lang=FR-CA style='font-size:
11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Mike<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I would start with
/var/log/asterisk/messages and /var/log/asterisk/full to see what is (was)
happening (if anything) on the console at these spike times.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Calibri><span lang=FR-CA
style='font-size:11.0pt;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=FR-CA
style='font-size:10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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