Brian,
You haven't said what codecs are being used yet. Are the listeners
using a different codec to the speaker? If so, you're potentially
doing transcoding on every single channel, which would make CPU usage
skyrocket.
-Steve
2009/12/17 Anthony Minessale anthony.miness...@gmail.com:
What exactly is your test process?
you should try increasing the interval in the conference profile to a bigger
time slice maybe 30 40 or 60ms
you could also increase the ptime to match as well.
like brian said you could use mod_shout to broadcast the single speaker to
icecast and let people listen with itunes/winamp
On Thu, Dec 17, 2009 at 3:41 PM, Brian br...@proximosystems.com wrote:
I did a test with the trunk version for the one conference case, and it is
the same results as for 1.0.4. The audio failed at around 300 listeners.
Oddly though, it consumed less %CPU (240% instead of 300%), and yet the
audio still failed at the same number of listeners.
Brian.
From: Anthony Minessale [mailto:anthony.miness...@gmail.com]
Sent: Thursday, December 17, 2009 3:49 PM
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] mod_conference scalability
We didn't post it anywhere but we just get overwhelmed with them and many
of them are unfounded and take up a lot of time to track down. That does
not mean you have not found a real problem but the first step is trying
trunk.
On Thu, Dec 17, 2009 at 2:32 PM, Brian br...@proximosystems.com wrote:
I didn’t realize there was a policy about load testing questions. What
forum should I have used for this?
I didn’t get the chance to test on FS trunk yet, but when I do I will
provide you with the feedback when I do. Just let me know what forum to use
for this topic from now on.
Thanks,
Brian.
From: Anthony Minessale [mailto:anthony.miness...@gmail.com]
Sent: Thursday, December 17, 2009 2:42 PM
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] mod_conference scalability
One man's stable release is another man's 6 month old release with
hundreds of known fixed bugs.
If one of the core developers tells you to try it, you may as well take
the time to try it now that you have opened a forum questioning the
scalability.
When you tested asterisk did you actually use 600 phones and verify that
each one can hear the audio perfectly and in time with what the speaker was
saying? Did you try same on FS?
Did you optimize your dialplan on FS to deal with a load test or follow
any of the recommended performance tuning page.
All of the answers to these questions are really moot because we have a
policy against entertaining load testing questions but if you like asterisk,
by all means, use it, and good luck to you if those numbers you are testing
at are what you plan to put in real production.
On Thu, Dec 17, 2009 at 1:29 PM, Brian br...@proximosystems.com wrote:
Hi Mike,
I didn’t get around to testing on the FreeSWITCH trunk yet. Are there
substantial fixes to mod_conference in the FreeSWITCH trunk that might
increase capacity for my scenario of one speaker and many listeners? If I
want to put this into a production environment, I would need a stable
version, which as far as I know is the 1.0.4 version.
However, I did test on Asterisk 1.4 using app_conference, and doing the
same scenario was able to get 1 speaker and 600 listeners on a single
conference with no audio issues. The CPU at that point was just over 300%,
same as where the single conference scenario failed on FreeSWITCH with 300
listeners. I was able to push it to over 700 listeners before I reached
400% CPU usage (I guess maxing out my quad-core processors), and asterisk
finally crashed. But up until that point, there were no audio problems.
I’ve read a lot about how FreeSWITCH is supposed to be more scalable than
Asterisk, but unless there is something wrong with my FreeSWITCH setup,
Asterisk was clearly the winner in this test – more than doubling FreeSWITCH
capacity in this case. Again, maybe there is something on the FreeSWITCH
side that I’m doing wrong, but I don’t see what it could be.
Brian.
From: Michael Jerris [mailto:m...@jerris.com]
Sent: Thursday, December 17, 2009 10:18 AM
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] mod_conference scalability
I would be curious what the same tests produce with svn trunk of
FreeSWITCH.
Mike
On Dec 16, 2009, at 4:49 PM, Brian wrote:
Hi,
I’m new to FreeSWITCH and I’m testing the scalability of mod_conference to
see if it will scale better that other solutions. My scenario is to have one
speaker, and many listeners (mute). Since I have only one speaker, I was
expecting this to scale well because there is no audio mixing required, just
send each frame of the single speaker to each listener. Unfortunately, my
testing was disappointing, and it didn’t scale nearly as well as
