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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>&nbsp;</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>&nbsp;</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>).&nbsp; 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>&nbsp;</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.&nbsp; 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>&nbsp;</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.&nbsp; 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.&nbsp; There is no &quot;scheduled&quot; 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>&nbsp;</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>&nbsp;</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>&nbsp;</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>&nbsp;</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>&nbsp;</o:p></span></font></p>

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