[Freeswitch-users] Scaling Question

[Eric Liedtke]

Yessir. I am using the exact same ulimits below. I also increased the
sessions per second to 50 and max-sessions to 5000. Also as we are
moving into a high traffic period based on time of day. I've had it die
repeatedly on me, the following line was the last line printed ...

freeswitch: nua_stack.c:2396: nua_client_restart_request: Assertion
`nua_client_is_queued(cr)' failed.

this is the other last line I get if the system itself seems to be
overloaded

freeswitch: sofia.c:2138: sofia_handle_sip_i_state: Assertion
`tech_pvt->nh != ((void *)0)' failed.

I don't know if that is of any help or not. At the time I was seeing
approx 80-90 calls per sec hitting the server, based on the 'status'
command in the FS cli.

I don't have this built with debug symbols either at the moment. I
wanted to get a baseline of server with x can do y , based on how we use
it. I will likely get it rebuilt and find a way to reduce some of the
traffic load so I can effectively tshoot.

-e

It's seems fuzzy now but I think on Mon, Nov 03, 2008 at 05:19:42PM -0600 , Anthony Minessale said:
> Did you increase the artificial limits in switch.conf.xml ?
> 
> try these uimits
> 
> ulimit -c unlimited
> ulimit -d unlimited
> ulimit -f unlimited
> ulimit -i unlimited
> ulimit -n 999999
> ulimit -q unlimited
> 
> ulimit -u unlimited
> ulimit -v unlimited
> ulimit -x unlimited
> ulimit -s 244
> ulimit -l unlimited
> 
> 
> 
> 
> On Mon, Nov 3, 2008 at 4:46 PM, Eric Liedtke <e at musinghalfwit.org> wrote:
> 
>     Greetings,
> 
>     I'm working on a server in an SBC setup. It has a copper 10/100 for
>     admin and 2 GiGe connections for private/public peering(SIP signaling
>     and media). I've been testing with some traffic and am finding I hit a
>     ceiling around 800-900 active calls. The system CPU ends up being about
>     40% which seemed really high to me. Is this simply due to the amount of
>     networking happening with the rtp in and out the different interfaces or am
>     I
>     operating something in a non optimized fasion ?
> 
>     It's an e1000 based card, I've tried messing around with the interrupt
>     throttling but in the end the dynamic setting seemed to work best. Given
>     that a chassis has done 3k simultaneous calls with about half the
>     processing power I currently have in this server I must be running sub
>     optimal.
> 
>     Any idea's of where I might look to correct this ? kernel tuning ?
>     network tuning ? Other than seeing a lot of irq's from the network cards
>     I"m not sure what else might be using up the system cpu.
> 
>     To squeeze out as much as possible I have the core databases housed in a
>     tmpfs partiion, and I've also disabled the sql scoreboard (-nosql). Any
>     other areas I should  be exploring to increase the number of calls this
>     chassis can process ?
> 
>     Thanks in advance for any ideas
> 
>     -Eric
> 
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> 
> 
> --
> Anthony Minessale II
> 
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