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Hi,<br>
<br>
perhaps it is a problem with your Host-Guest-Setup? Did you try the
Asterisk-Setup on a dedicated server without virtualization?<br>
<br>
-Thorsten-<br>
<br>
<div class="moz-cite-prefix">Am 07.02.2013 11:42, schrieb Hristo
Trendev:<br>
</div>
<blockquote
cite="mid:CAF5NwdPafyzYz7vY2dLq=W8rM6y7+huxgmE4rXXbC9+BtxRr-g@mail.gmail.com"
type="cite">
<div dir="ltr">Hi Thorsten,
<div style=""><br>
</div>
<div style="">Thanks for your reply. I did check core show
translations, but the following <a moz-do-not-send="true"
href="http://lists.digium.com/pipermail/asterisk-users/2012-November/276132.html">http://lists.digium.com/pipermail/asterisk-users/2012-November/276132.html</a>
suggests that the values displayed are no longer representing
the computation cost only. However to answer your question:</div>
<div style=""><br>
</div>
<div style="">G722 to SLIN16 cost is 9000, reverse direction is
6000</div>
<div style="">ALAW to SLN16 cost is 17000, reverse direction is
14500<br>
</div>
<div style=""><br>
</div>
<div style="">G722 to SLN cost is 9600, reverse direction is
8250<br>
</div>
<div style="">ALAW to SLN cost is 9000, reverse direction is
6000</div>
<div style=""><br>
</div>
<div style="">With regards to the CPU usage per core - inside
the VM, where only one core is available, the CPU was close to
100% when the problem started to apear, on the physical server
with 4 cores, the cores were evenly loaded at about 30-40%. A
single call into the conference consumed between 10-20%
depending on whether I have denoise enabled or not.</div>
<div style=""><br>
</div>
<div style="">There is no dahdi board installed, I only use the
dahdi module for conference timer (note that the problem is
also present with the <span
style="font-family:arial,sans-serif;font-size:13px">timerfd
timing module).</span></div>
<div style=""><br>
</div>
<div style="">BR,</div>
<div style="">Hristo</div>
</div>
<div class="gmail_extra"><br>
<br>
<div class="gmail_quote">On Wed, Feb 6, 2013 at 1:57 PM,
Thorsten Göllner <span dir="ltr"><<a
moz-do-not-send="true" href="mailto:tg@ovm-group.com"
target="_blank">tg@ovm-group.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Did you
check<br>
asterisk -rx "core show translation recalc 10"<br>
<br>
Am 06.02.2013 13:56, schrieb Thorsten Göllner:
<div class="HOEnZb">
<div class="h5"><br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Sorry - I just read you alsways checked the cpu usage.
Are all cores at 100%? Is it the atserisk process
which consumes it all?<br>
<br>
Am 06.02.2013 13:54, schrieb Thorsten Göllner:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Did you watch the cpu usage (for example with top)?<br>
You have a board installed which does use dahdi? Did
you check the command "dahdi_test"?<br>
Maybe a (performance) problem of the software ec?<br>
<br>
Am 06.02.2013 11:13, schrieb Hristo Trendev:<br>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
Hi,<br>
<br>
I have been experimenting with ConfBridge from the
asterisk-11 stable SVN branch (and with 11.2.0
also) for the last 3 weeks and I see a problem,
which what I believe is performance related. I
just wanted to ask if someone else has made any
tests and what is the maximum number of
participants that they've seen in a conference.<br>
<br>
I was never able to get more than 8 participants
(mixed G722 and G711a) on a conference (actually
that's per server limit) with almost all settings
on default, except for dsp_drop_silence and
denoise which are enabled.<br>
<br>
I tested on Debian squeeze, 64-bit, quad-core Xeon
server @2.4GHz and also on another virtual server
with similar processor (just one core available to
the VM). While this is not the latest and greatest
CPU, I would certainly expect it to handle more
than 8 calls.<br>
<br>
To be honest, I was in fact able to get it working
for up to 20 participants (most with G711), when I
switched from res_timing_timerfd to
res_timing_dahdi and turned off denoise, but
that's still not normal I believe, especially with
most participants on mute and with
dps_drop_silence enabled and nothing else running
on the server.<br>
<br>
The problem itself is, that once I get over the
"critical" number of participants, the voice
starts to break up and it's impossible to
understand the person who's talking. This is
certainly not bandwidth related because all tests
were made on the LAN and besides I could see that
the CPU was sometime close to 100%.<br>
<br>
Did someone observe something similar?<br>
<br>
BTW, once the first participant enters the
conference I start seeing probably over 50
messages per second saying:<br>
<br>
bridging.c:757 bridge_channel_join_multithreaded:
Going into a multithreaded waitfor for bridge
channel 0x292d708 of bridge 0x28f3658 <br>
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