[Freeswitch-users] FS stress test issue

[William King]

Vincent,

What network card hardware are you using? UDP packets on cheap
networking cards are very sensitive to a lack of idle cpu time. I've
seen many models of RealTek cards that will start dropping over 10% of
all UDP packets if your CPU idle drops below ~50%. In my experience
server grade Intel network cards are much better, but even these will
start dropping ~5-10% of UDP packets if your CPU idle gets below 15%.

Also do these calls have the media going through this box? or through an
external media gateway?

William King
Senior Engineer
Quentus Technologies, INC
1037 NE 65th St Suite 273
Seattle, WA 98115
Main:   (877) 211-9337
Office: (206) 388-4772
Cell:   (253) 686-5518
william.king at quentustech.com

On 06/19/2013 07:55 PM, Vincent Xia wrote:
> I've doubled CPU capability, now the CPU usage at 1000 calls is around
> 50%, but call loss is still 10-20%, maybe Brian is right, don't try more
> than 500 calls.
> 
> 
> 2013/6/19 Alex Lake <alex at digitalmail.com <mailto:alex at digitalmail.com>>
> 
>     If your CPU is averaging around 80-90%, I would consider that maxed out!
>     Can you try it on a more powerful machine?
>>     while i was doing stress test over FS, things look pretty good as
>>     FS is able to hold 800 concurrent calls with a call loss rate at
>>     around 0.1%, when leveling up to 1000 concurrent calls, the call
>>     loss soars to 10-20%, i made some modification to switch.conf like
>>
>>     <param name="max-sessions" value="2000"/>
>>     <param name="sessions-per-second" value="100"/>
>>
>>     but things didn't get any better, the host CPU usage rate is
>>     around 80-90%, memory usage: 10%, network load 10%, so i think
>>     there should be someway we can make FS handle more concurrent
>>     calls, any ideas?
>>
>>
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