[asterisk-users] Troubleshooting load issues

Eric Wieling ewieling at nyigc.com
Wed Apr 22 14:25:41 CDT 2020

Try setting transcode_via_sln=no in /etc/asterisk/asterisk.conf and 
restart Asterisk.  A reload will NOT apply the new value.  Setting it to 
no seems to smooth out CPU usage on one of my servers.

On 4/22/20 2:01 PM, Dovid Bender wrote:
> Hi,
> I have an Asterisk box which has an IVR that plays random gsm files. The 
> box has SSD's and two CPU E5-2695 v2 cpus with 64GB ram. The Asterisk 
> CPU usage along with the load seems to jump around. With about 500 
> callers it hovers between 250-400% CPU (so 2.5 to 4 cores) which seems 
> reasonable. Every so often the load average spikes. The idle never drops 
> below 85%. When the load average spikes I see a lot of kworker threads 
> and the CPU usage tends to (not not always) go up as well. How would I 
> go about seeing what in Asterisk is causing the spike? The box is locked 
> down and only takes calls from an OpenSiPS box. There is nothing else 
> running on the box.
> TIA.
> Dovid


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