[asterisk-users] asterisk optimalization

[marek cervenka]

>> marek cervenka <cervajs at fpf.slu.cz> writes:
>>
>>> hi,
>>>
>>> i'm testing asterisk 1.4/1.2 in the following scenario
>>> centos5/cpu quad xeon E5335 2.0Ghz
>>> - test clients behind nat
>>> - 1500+ testing instances - reregister option from 1min to 1hour
>>> - qualify set to 5000
>>>
>>> top shows over 100% cpu. cpu cores sometimes go to 95%
>>> with htop i see ~16threads but only one child have ~95% cpu
>>> (how i can get info about that thread? what he is doing?)
>>>
>> oprofile can probably tell you. It can be a bit difficult to get
>> all the debugging information into the right places so oprofile works,
>> but it's very helpful.
>
> this is strace -p ppid_of_problematic_thread
>
> can you look if you see any anomalies?

one more info
with
iptables -A INPUT -p udp -s 0/0 -d 0/0 --dport 5060 -j REJECT
cpu usage goes to 0-4% -> this problem is not some asterisk cpu deadlock 
but problem in process incoming packets

---------------------------------------
Marek Cervenka
=======================================