[asterisk-biz] Performance on Pentium Dual Core CPUs

[Erick Perez]

Our company will get a dual core dual cpu opteron with 2gb ram on a Tyan Board.
The goal is to try to achieve a doing 400 channels ulaw at the same
time while recording the calls.

The setup is this:
200 sip phones-----------asteriskx86_64-------internet-----sip terminator ulaw

since it's a call center we will employ either app_meetme or
app_conference to link the calls.

The machine can be installed with centos 4.3 or Solaris 10 to do the
test. there is a X100P that can be used in the Centos4.3 but Solaris
does not have zaptel drivers yet (or do they??)

It may be a little optimistic but trying is the only way to get results.


On 6/4/06, Joseph Benden <joe at thrallingpenguin.com> wrote:
>
>  Hello,
>
>  I have Asterisk running on Solaris 10 on both Sparc and AMD.  The
> performance of the system is greater on Solaris compared with Linux, due to
> many factors.  The most gains are received when using mtmalloc library.
> Here's a link to a report I've done.  However, do keep in mind that the
> numbers mean nothing about _real_ call concurrency amounts, but rather serve
> to show the difference in performance of the two operating systems.
> However, the numbers do show that you can do more on Solaris than Linux.
> The actual real world number of concurrent calls is totally dependent on
> what the VoIP operator is trying to accomplish (ie: echo cancel, codecs,
> transcoding, etc.)  The biggest downside to Solaris is the lack of a kernel
> driver for Zaptel hardware.  However; this is something I'd like to work on.
>
> http://www.thrallingpenguin.com/articles/asterisk-solaris.htm
>
>  -Joe
>  Thralling Penguin LLC
>
>
>
>  On Sun, 2006-06-04 at 21:02 +0200, Tomer Horn wrote:
>
>
>  I'm curious if anyone is running Asterisk on Sun Fire T2000 or similar
> UltraSPARC T1 servers.
>  Or maybe generally running Asterisk over Sparc in production environment.
>
>
>  Anyone? Any comments about performance using Sparc?
>
>
>  Kevin P. Fleming wrote:
>  ----- Sergey Kuznetsov <asterisk_biz at deeptown.org> wrote:
>
>
>
>
>  Can you share your expectations how many G729 transcodings can be done
>
> on dual dual-core Opterons or P4 with 4 Gb of memory on SIP-to-SIP
> environments ( no TDM or echocancelers involved)
> My guess is about 250-300 simultaneous calls.
>
>
>
> I don't have any first-hand experience, as we don't do performance
> benchmarking like that.
>
> In any case, the amount of memory will make no difference at all. The clock
> speed of the CPUs and the speed of the memory bus will be the determining
> factors, so realistically I would expect the Opterons to perform better than
> P4s due to their much more efficient memory subsystem.
>
> However, I can say that I doubt any existing PC-type platform will be able
> to achieve 250 or 300 simultaneous G.729 transcodes; any single box that
> could handle that would cost far more than a pair of lower-performance
> systems to do the same thing (think scaling horizontally, not vertically).
> In addition, when Digium releases the hardware G.729 transcoder board in the
> near future this will become less of an issue for deployments of that size.
>
>
>
>
>
>
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-- 

-------------------------------------------
Erick Perez
Linux User 376588
http://counter.li.org/  (Get counted!!!)
Panama, Republic of Panama