Kernel Interface table
Iface      MTU    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR
Flg
ens160    1500  5703793      0   4033 0       5633784      0      0      0
BMRU
lo       65536    32147      0      0 0         32147      0      0      0
LRU

On Mon, Jan 16, 2023 at 7:55 PM Mohammad Reza Keshavarzianpoor <
[email protected]> wrote:

> yes I tried tcp dump and it says ubuntu is dropping packets
> 618916 packets captured
> 1242894 packets received by filter
> 623578 packets dropped by kernel
> so what should I do?
>
> On Mon, Jan 16, 2023 at 7:49 PM Henning Westerholt <[email protected]> wrote:
>
>> Hello,
>>
>>
>>
>> normally it’s not needed to set the num-threads* variables, there is some
>> autodetection implemented. Why you want to run that many threads on a 4
>> core server?
>>
>>
>>
>> I would now look to your network configuration, maybe it needs some
>> tuning. You can also get statistics about dropped packets etc.. with system
>> tools.
>>
>>
>>
>> Cheers,
>>
>>
>>
>> Henning
>>
>>
>>
>> --
>>
>> Henning Westerholt – https://skalatan.de/blog/
>>
>> Kamailio services – https://gilawa.com
>>
>>
>>
>> *From:* Mohammad Reza Keshavarzianpoor <[email protected]>
>> *Sent:* Monday, January 16, 2023 5:16 PM
>> *To:* Henning Westerholt <[email protected]>
>> *Cc:* [email protected]
>> *Subject:* Re: [SR-Users] rtp lost package in 300 concurrent calls and
>> above
>>
>>
>>
>> Hi,
>>
>> Sure, Thanks,
>>
>> I installed rtpengine. default rtpengin.conf and after uncommenting these:
>>
>> num-threads = 16
>>  num-media-threads = 8
>>  http-threads = 4
>>
>> in that, the same result is its working well for first 300-400 call. but
>> after that packet lose starts.
>>
>> cpu load increased to 30% on all 4 cores.
>>
>> any advice about rtpengine.conf to better result?
>>
>>
>>
>> Thanks for your help
>>
>>
>>
>> On Mon, Jan 16, 2023 at 6:09 PM Henning Westerholt <[email protected]> wrote:
>>
>> Hello,
>>
>>
>>
>> please keep the list in CC.
>>
>>
>>
>> Ok, the machine seems to not really using all its cores. Regarding
>> playing a file, this can be also done with rtpengine:
>>
>>
>> https://kamailio.org/docs/modules/5.5.x/modules/rtpengine.html#rtpengine.f.play_media
>>
>>
>>
>> Cheers,
>>
>>
>>
>> Henning
>>
>>
>>
>> --
>>
>> Henning Westerholt – https://skalatan.de/blog/
>>
>> Kamailio services – https://gilawa.com
>>
>>
>>
>> *From:* Mohammad Reza Keshavarzianpoor <[email protected]>
>> *Sent:* Monday, January 16, 2023 3:35 PM
>> *To:* Henning Westerholt <[email protected]>
>> *Subject:* Re: [SR-Users] rtp lost package in 300 concurrent calls and
>> above
>>
>>
>>
>> thanks for your reply
>>
>> my kamailio server has 8GB of ram and 4core*2.6 on esxi(dedicated)Ubuntu
>> 22.04.1 LTS. is it low? htop on server shows load average 1.04 at max and I
>> didn't see more than 10% load on any core of the server.
>>
>> I've selected rtp media server because of playback of a voice file over
>> incoming calls in the future usage
>>
>>
>>
>> On Mon, Jan 16, 2023 at 5:45 PM Henning Westerholt <[email protected]> wrote:
>>
>> Hello,
>>
>>
>>
>> do you observe (too) high load on the system with the standard system
>> management tools?
>>
>> If you want to just proxy calls, my recommendation would be to use
>> rtpengine. Here you should be able to achieve higher concurrent calls
>> rates, if you have a few CPUs on a decent machine.
>>
>>
>>
>> Cheers,
>>
>>
>>
>> Henning
>>
>>
>>
>> --
>>
>> Henning Westerholt – https://skalatan.de/blog/
>>
>> Kamailio services – https://gilawa.com
>>
>>
>>
>> *From:* Mohammad Reza Keshavarzianpoor <[email protected]>
>> *Sent:* Monday, January 16, 2023 2:50 PM
>> *To:* [email protected]
>> *Subject:* [SR-Users] rtp lost package in 300 concurrent calls and above
>>
>>
>>
>> Hi,
>>
>> I've installed last version of kamailio over ubuntu. I need to broadcast
>> machine calls to destinations. my concurrent call should be around 300(my
>> pstn channels), so I start calls with cps around 20, because my calls
>> contains a less than 30 second and if destination answer the call it will
>> hanged up in less than or equal to 30 seconds.
>>
>> My problem is: to test my kamailio config, I'm using startrinity sip
>> tester over an win server 2019 on local network. and it shows about 20%
>> lost package on rtp and a jitter about 500ms. what should I do? my config
>> is based on rtp media server module. Is there a complete working sample
>> config for kamailio with rtp media server module?
>>
>> I tried rtpproxy and rtp engine in past and the same problem happened.
>>
>> Thanks for any help you can provide
>>
>> Best regards
>>
>>
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