[Freeswitch-users] Scaling Question

Anthony Minessale anthony.minessale at gmail.com
Mon Nov 3 15:19:42 PST 2008

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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