Hi,
perhaps it is a problem with your Host-Guest-Setup? Did you try the
Asterisk-Setup on a dedicated server without virtualization?
-Thorsten-
Am 07.02.2013 11:42, schrieb Hristo Trendev:
Hi Thorsten,
Thanks for your reply. I did check core show translations, but the
following
http://lists.digium.com/pipermail/asterisk-users/2012-November/276132.html
suggests that the values displayed are no longer representing the
computation cost only. However to answer your question:
G722 to SLIN16 cost is 9000, reverse direction is 6000
ALAW to SLN16 cost is 17000, reverse direction is 14500
G722 to SLN cost is 9600, reverse direction is 8250
ALAW to SLN cost is 9000, reverse direction is 6000
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.
There is no dahdi board installed, I only use the dahdi module for
conference timer (note that the problem is also present with the
timerfd timing module).
BR,
Hristo
On Wed, Feb 6, 2013 at 1:57 PM, Thorsten Göllner <t...@ovm-group.com
<mailto:t...@ovm-group.com>> wrote:
Did you check
asterisk -rx "core show translation recalc 10"
Am 06.02.2013 13:56, schrieb Thorsten Göllner:
Sorry - I just read you alsways checked the cpu usage. Are all
cores at 100%? Is it the atserisk process which consumes it all?
Am 06.02.2013 13:54, schrieb Thorsten Göllner:
Did you watch the cpu usage (for example with top)?
You have a board installed which does use dahdi? Did you
check the command "dahdi_test"?
Maybe a (performance) problem of the software ec?
Am 06.02.2013 11:13, schrieb Hristo Trendev:
Hi,
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.
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.
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.
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.
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%.
Did someone observe something similar?
BTW, once the first participant enters the conference
I start seeing probably over 50 messages per second
saying:
bridging.c:757 bridge_channel_join_multithreaded:
Going into a multithreaded waitfor for bridge channel
0x292d708 of bridge 0x28f3658
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