[Freeswitch-users] Performance testing

Mon Oct 3 08:26:06 MSD 2016

well consider you are doing 90 transcode sessions there…. Not sure what the actual outbound codec is, but that’s just a guess based on 90 session(s) - peak 93, last 5min 92…

theres also what else is going on with the call that you have to contend with… obviously you are creating some sort of dialer… and for help with that and optimization I would contact the FS core team @ consulting at freeswitch.org <mailto:consulting at freeswitch.org>  for some pro help… the reason we don’t release any soft of scaling metrics is changing 1 setting can invalidate the testing… things like recording, transcoding, amount of media handling, any call scripting and specifically what else is going on there in the media processing… 

as far as capacity planning for doing something like you are doing, I wouldn’t even bother with less than a 12 or 24 vcore machine

From: freeswitch-users-bounces at lists.freeswitch.org [mailto:freeswitch-users-bounces at lists.freeswitch.org] On Behalf Of Gonzalo Gasca Meza
Sent: Sunday, October 2, 2016 11:19 PM
To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org>
Subject: Re: [Freeswitch-users] Performance testing

Hi Ken,

I'm using .wav, this is my ESL command:

originate {sip_h_X-UUID=9d33a760-gmwz-qn1n-xvqz-qal4-9d33b25a89,sip_h_X-Campaign=3A252BEX9W,ignore_early_media=false,bridge_early_media=false,originate_timeout=70,bridge_answer_timeout=70,call_timeout=70,[leg_timeout=70],execute_on_answer_1='sched_hangup 18 ALLOTTED_TIMEOUT',origination_uuid=9d33a760-gmwz-qn1n-xvqz-qal4-9d33b25a89,origination_caller_id_number=+14081116805,RECORD_STEREO=true,execute_on_answer_2='record_session /var/www/html/recordings/9d33a760-gmwz-qn1n-xvqz-qal4-9d33b25a89.wav'}sofia/gateway/kamailio/+14080001963 handle_calls

I created a separate volume for writing only recording files & logs.

I will consider increasing CPUs, do you think I still can remove some of the modules I currently using to improve performance?

Thanks!

On Sun, Oct 2, 2016 at 9:07 PM, Ken Rice <krice at freeswitch.org <mailto:krice at freeswitch.org> > wrote:

How are you actually recording the files? Native? mp3? wav? Something else?

keep in mind that recording also means disk io which means more CPU while its recording to handle the IO load… there are way too many undisclosed factors here that can and will impact your performance…

one example is 2 cores? That’s all? FS is a highly threaded application… that means for each call leg there is atleast 1 thread… so the more cores the merrier… 

not to mention you are running on amazon that leaves a whole different set of variables to attend too….

From: freeswitch-users-bounces at lists.freeswitch.org <mailto:freeswitch-users-bounces at lists.freeswitch.org>  [mailto:freeswitch-users-bounces at lists.freeswitch.org <mailto:freeswitch-users-bounces at lists.freeswitch.org> ] On Behalf Of Gonzalo Gasca Meza
Sent: Sunday, October 2, 2016 10:43 PM
To: FreeSWITCH Users Help <freeswitch-users at lists.freeswitch.org <mailto:freeswitch-users at lists.freeswitch.org> >
Subject: [Freeswitch-users] Performance testing

Hi all,

I'm testing Freeswitch using ESL interface, recording and SIP UDP Calls at a rate of around 5 CPS.

Freeswitch receives ESL requests and proceeds to send call to PSTN Emulator, once call is answered I start recording. I have noticed around 40% CPU utilization when recording is not enabled and ~60%+ CPU when recording is.

I created/mount a volume specifically to store the recording files. (ext4)

Server specifications:

EC2 server (t2.medium) 2 vCPUs, 2.5 GHz, Intel Xeon Family, 4 GiB memory.

FreeSWITCH (Version 1.6.9 -16-d574870 64bit)

I followed instructions at: https://wiki.freeswitch.org/wiki/Performance_testing_and_configurations

[Questions]  

a) How to strip down Freeswitch and remove non-used modules? 

Features I need:

esl, recording, loopback, bridge, sip, spandsp, cdr_csv.

My modules: 

fs_cli -x "show modules"

http://pastebin.com/BQSxzFDE

b) I would like to see which module is using X/Y amount of CPU cycles/memory in Freeswitch is it possible?.

fs_cli -x 'show status'

UP 0 years, 0 days, 1 hour, 2 minutes, 15 seconds, 541 milliseconds, 286 microseconds

FreeSWITCH (Version 1.6.9 -16-d574870 64bit) is ready

18192 session(s) since startup

90 session(s) - peak 93, last 5min 92 

5 session(s) per Sec out of max 30, peak 7, last 5min 6 

1000 session(s) max

min idle cpu 0.00/75.57

Current Stack Size/Max 240K/8192K

A sample image is below: 40% steady (no recording) a peak when I enabled recording.

# top

top - 03:25:16 up 22:42,  1 user,  load average: 3.88, 5.74, 10.39

Tasks:  68 total,   1 running,  67 sleeping,   0 stopped,   0 zombie

%Cpu(s): 11.0 us,  2.3 sy,  0.0 ni, 85.7 id,  0.0 wa,  0.0 hi,  0.7 si,  0.4 st

KiB Mem:   4057584 total,   865964 used,  3191620 free,   147088 buffers

KiB Swap:  1048572 total,        0 used,  1048572 free.   213572 cached Mem

  PID USER      PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND                                                                                                                                

26217 freeswi+  -2 -10 1427444 302584  16904 S  65.9  7.5  28:47.49 freeswitch       

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