[asterisk-biz] Performance on Pentium Dual Core CPUs

[William Lloyd]

I have a similar setup(Tyan MB, Dual opteron etc).  It's not the  
CPU's that your going to run up against, it's the bandwidth to your  
hard drives.

You will probably need to use a memory filesystem and transfer to  
hard drives after recording is finished.

Unfortunately some of the tyan dual opteron boards don;t like non  
registered memory despite what the manual says.  Memory filesystem  
with registered memory is gonna be expensive.

-bill

On 4-Jun-06, at 3:48 PM, Erick Perez wrote:

> 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
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