[Freeswitch-users] CPS per mod_sofia profile limited?

[Robin Vleij]

On 1/31/10 2:57 AM, Michael Jerris wrote:

Hi Mike!

> For clarification, is it correct that your getting worse numbers for
> sustainable cps on SVN then on 1.0.4? I would be interested in the

Yes, 1.04 offered a lot better performance in my test scenario, using 
the same call scripts. I agree that the scenario isn't really realistic, 
I should test with at least 30 second calls.

> numbers you would get with bypass_media=true instead of proxy_media=true

Thought about the same, and funnily enough that didn't help. But in the 
long list of things I tried I don't remember if I tried it on 1.04, 
without media proxying. I expect a much higher performance just 
bypassing the media. I'll try again tomorrow on 1.04 and post the results.

> and with neither setting set as well. Also, make sure your logging level
> is low and try putting the db dir on a ram disk. Thanks for the info. As

I check disk performance using iostat and they're on 2% usage. It's a 
10k rpm sas disk we're writing to, with ram cache on the raid 
controller. Also -nosql didn't have any influence at all on performance.

> that length of call matters very little. In proxy media or normal mode,
> the performance of the box is much more of a calculation on number of
> calls than cps as a result of the context switching from having to move

Exactly. I'll adjust the lengt of the call to 30 or 60 seconds and then 
try to see how many calls we can have. That's in the end what matters 
really and not cps on it's own. Have to create a 60 second pcap first. :)

> calls). Some other tips. While this extension may be trivial, what else
> is there in your dialplan context? Anything above that extension could

Nothing, it's a single entry dialplan and that entry is thus on the top.

> cause a significant impact. Do you have any of the presence features

All presence features disabled.

> enabled? These do significantly impact call handling performance even if
> your sipp scenarios do not send any of those packets.

Yep. :)

Thanks for the input so far!

Maybe after I get some final results I put it on the wiki for future 
reference to load tests?

/robin