[Serdev] ser and efficiency/speed

[Klaus Darilion]

Dariusz Dwornikowski wrote:
> I ve got problem with SER.
> Caller has to wait some little time for the signal to begin (after 
> inputting the number).

Are you sure the delay si caused by ser? MAybe the SI client waits for 
some more digits before sending the INVITE? Sometimes there also might 
be a delay in the client when the clients performs DNS lookups or STUN 
requests.

If the delay is introduced by ser, debug where is it coming from. Does 
ser performs DNS lookups which takes some time? Take a look at the input 
queues of ser:
netstat -anp|grep 5060

When does the delay ocours? When authenticating? MAybe the DB or the 
radius server is slow.

regards
klaus

> It does not happen everytime, it happens when you call some number for 
> the first time or when there are many
> concurrent connections.
> What can be done to tweak SER to handle 1000 and more simultaneous 
> connections ?
> Please respond.
>