[Kamailio-Users] Registration delays when using Kamailio proxy

[Vikram Ragukumar]

Hello,

I was able to fix the problem, by enabling AHCI in the BIOS and 
rebuilding initrd with the ahci driver. Instructions in link below

http://serverfault.com/questions/68793/enabling-ahci-in-rhel5-post-install

Current hdparm -t /dev/sda output
Timing buffered disk reads:   182 MB in  3.02 seconds =   60.29 MB/sec

Thanks for all the help.
Vikram.

Vikram Ragukumar wrote:
> Daniel,
> 
> Thank you for your response.
> 
> Daniel-Constantin Mierla wrote:
>> Hello,
>>
>> what version are you using? Do you have big traffic on it?
> I am using version 1.5, and there isn't much traffic.
> 
>> Usual delays are coming from:
>> - lot of debugging with non-asynchronous syslog
> This was a very useful tip. Turns out that HD access times were very poor
> 
> hdparm -t /dev/hda output
> Timing buffered disk reads:   12 MB in  3.48 seconds =   3.45 MB/sec
> 
> I tested registration times after setting debug=0 in the kamailio.cfg 
> file, and registrations were much quicker. I plan on working around this 
> issue by switching to AHCI mode from IDE mode.
> 
> Once again, Thank you very much.
> Vikram.
> 
>> On 2/3/10 1:14 AM, vragukumar at signalogic.com wrote:
>>> Hello,
>>>
>>> Here is some more information from wireshark,
>>>
>>> "No.","Time","Source","Destination","Protocol","Info"
>>> "1","0.000000","x_lite_softphone","SIP_proxy","SIP","Request: REGISTER
>>> sip:SIP_server"
>>> "2","0.000012","x_lite_softphone","SIP_proxy","SIP","Request: REGISTER
>>> sip:SIP_server"
>>> "5","0.818876","SIP_proxy","SIP_server","SIP","Request: REGISTER
>>> sip:SIP_server"
>>> "6","0.818886","SIP_proxy","SIP_server","SIP","Request: REGISTER
>>> sip:SIP_server"
>>> "7","0.824475","SIP_server","SIP_proxy","SIP","Status: 200 OK    (1
>>> bindings)"
>>> "15","2.635788","SIP_proxy","x_lite_softphone","SIP","Status: 200 
>>> OK    (1
>>> bindings)"
>>>
>>> Looking at the timestamps for these SIP messages
>>> - It takes the proxy 0.8s to relay REGISTER request to SIP server
>>> - It takes the proxy 1.8s to relay 200 OK to the softphone
>>>
>>> These time durations appear to be very long.
>>> What are the expected time durations for these relay times? What 
>>> might be
>>> causing relay times to be so large ?
>>>
>>> Thanks in advance.
>>>
>>> Regards,
>>> Vikram.
>>>
>>>  
>>>> Hello,
>>>>
>>>> I am using an x-lite softphone to register with my SIP domain,
>>>>
>>>> (a) Without an outbound proxy - Registration is successful and takes
>>>> about 3 seconds
>>>> (b) With an outbound proxy - Registration is successful but takes 
>>>> nearly
>>>> 15 seconds
>>>> I briefly describe below the sequence of SIP messages while using the
>>>> outbound proxy
>>>>
>>>> Register softphone ->  proxy
>>>> Register proxy ->  SIP server
>>>> Register softphone ->  proxy
>>>> 407 Proxy authentication reqd. SIP server ->  proxy
>>>> Register softphone ->  proxy
>>>> 407 Proxy authentication reqd. proxy ->  softphone
>>>> Register softphone ->  proxy (With Digest response)
>>>> Register proxy ->  SIP server (With Digest response)
>>>> 200 OK Sip server ->  proxy
>>>> Register softphone ->  proxy (With Digest response)
>>>>
>>>> I am attaching a log with wireshark captures that show SIP messages
>>>> exchanged between the SIP server,SIP proxy and the x-lite softphone. 
>>>> The
>>>> log shows several messages being duplicated (REGISTER, 200 OK)
>>>>
>>>> 1) Why does the softphone continue to send REGISTER messages after
>>>> receiving a 200 OK response ? (almost 15 repetitions of REGISTER after
>>>> receiving 200 OK)
>>>>
>>>> 2) What is the reason for the delay in registration times with/without
>>>> the proxy ?
>>>>
>>>> Thanks and Regards,
>>>> Vikram.
>>>>
>>>>
>>>> _______________________________________________
>>>> Kamailio (OpenSER) - Users mailing list
>>>> Users at lists.kamailio.org
>>>> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>>>> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
>>>>      
>>>
>>> _______________________________________________
>>> Kamailio (OpenSER) - Users mailing list
>>> Users at lists.kamailio.org
>>> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
>>> http://lists.openser-project.org/cgi-bin/mailman/listinfo/users
>>>
>>>    
>>
> 
> 
> _______________________________________________
> Kamailio (OpenSER) - Users mailing list
> Users at lists.kamailio.org
> http://lists.kamailio.org/cgi-bin/mailman/listinfo/users
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