Re: [Freeswitch-users] Estimating Call Capacity

[Gregory Boehnlein]

I'm fond of Vqmanager from ManagEngine. It is a passive SIP monitor. I.E.
you mirror the ports that your FS or Asterisk boxes, and VQmanager sniffs
the mirrors, tracking all sorts of good data.

You can install it on a Centos box, and get a free trial.

http://www.manageengine.com/products/vqmanager/index.html

What is really cool is that it actually monitors the RTP/RTCP as well as all
of the SIP headers and archives the calls, so you can look at calls from
several days ago and see EXACTLY what happened on them. I have used this
extensively to pinpoint bad Level 3 and X/O media gateways.. Much better
than trying to sniff packets in real-time and MAYBE catch a problem..

I've also used it to find/fix several SIP issues w/ odd endpoints.. Very
easy to see..

> -Original Message-
> From: freeswitch-users-boun...@lists.freeswitch.org [mailto:freeswitch-
> users-boun...@lists.freeswitch.org] On Behalf Of Cliff Wells
> Sent: Tuesday, October 27, 2009 3:52 PM
> To: freeswitch-users@lists.freeswitch.org
> Subject: Re: [Freeswitch-users] Estimating Call Capacity
> 
> A little off-topic, but since call-capacity is the subject, what are
> people using to analyze their CDR's to discover this?   I'm handling
> about 30k calls per day but have only a bandwidth-based guesstimate of
> the peak number of concurrent calls I'm handling.
> 
> If there's an open source solution, I'd appreciate a pointer.
> 
> Regards,
> Cliff
> 
> On Mon, 2009-10-26 at 18:01 -0400, Eliot Gable wrote:
> > Although, FYI, I just benchmarked mod_xml_curl on a separate web app
> > server from FS with FS on a Dell R710 with their current best
> > processor option (Intel Xeon X5570 @2.93GHz with 8-cores total) and
> 32
> > GB memory. The web app server is less than half the power of the
> R710.
> > I maxed the web app server at 300 calls per second (both setting up
> > and tearing down) and the R710 running FS was 65% idle. No audio was
> > being proxied through FS, though. If I were running the web app
> server
> > on an equivalent R710, they probably would have been on-par with each
> > other in performance. Extrapolating, I expect that in such a case I
> > should be able to get at least 650 CPS out of FS, though for
> > production I would probably limit it to 400 CPS or less so I leave
> > room for miscellaneous tasks. I maxed out the R710 at over 16,000
> > simultaneous calls (again, no audio proxying) but the only reason I
> > couldn't do more was because I hit some sort of thread creation limit
> > in Linux. There was about 17 GB of memory used for this many calls.
> > This should give you some ballpark idea of what you can accomplish
> > with FS.
> >
> > At some point, I will track down and resolve the thread creation
> > issue, at which time I believe call limits will be limited either by
> a
> > complex combination of available memory, the speed of the processor,
> > the cost of thread context switching, calls per second setup rate,
> and
> > call duration.
> >
> > --
> > Eliot Gable
> >
> > > -Original Message-
> > >
> > > From: freeswitch-users-boun...@lists.freeswitch.org
> [mailto:freeswitch-users-boun...@lists.freeswitch.org] On Behalf Of
> Giovanni Maruzzelli
> > >
> > > Sent: Monday, October 26, 2009 4:56 PM
> > >
> > > To: freeswitch-users@lists.freeswitch.org
> > >
> > > Subject: Re: [Freeswitch-users] Estimating Call Capacity
> > >
> > >
> > >
> > > On Mon, Oct 26, 2009 at 9:28 PM, Vinuth Madinur
> > >
> > >  wrote:
> > >
> > > > Here are a few benchmarks that I had stumbled upon.
> > >
> > > >
> http://wiki.voiceworks.pl/display/~pawel/FreeSwitch+performance+on+SUN+
> x2200+M2
> > >
> > >
> > >
> > > Please remember NO benchmarks are endorsed by the FS community or
> > >
> > > developers, because there are just too many variables, and a simple
> > >
> > > figure is just useful for marketing hype, not for real
> dimensioning.
> > >
> > >
> > >
> > > You MUST do your own benchmarking, so you get an idea about how to
> > >
> > > dimension for your own use case and hardware.
> > >
> > >
> > >
> > >
> > >
> > > > Thanks,
> > >
> > > > Vinuth.
> > >
> > > >
> > >
> > > > On Tue, Oct 27, 2009 at 1:43 AM, Brian West
>  wrote:
> > >
> > > >>
> > >
> > > >> I highly doubt it... You can wait for someone to post their
> results
> > >
> > > >> but in the end you'll have to do your own load testing because
> not
> > >
> > > >> everyone's numbers will jive with your use case.  Which is the
> reason
> > >
> > > >> the project never posts or endorses a set call count.
> > >
> > > >>
> > >
> > > >> /b
> > >
> > > >>
> > >
> > > >> On Oct 26, 2009, at 2:50 PM, Ujjval Karihaloo wrote:
> > >
> > > >>
> > >
> > > >> > Are there any benchmarking test results available publicly?
> > >
> > > >> > 
> > >
> > > >>
> > >
> > > >>
> > >
> > > >> ___
> > >
> > > >> FreeSWITCH-users mailing list
> > >
> > > >> FreeSWITCH-users@lists.freeswitch.org
> > >
> > > >>

Re: [Freeswitch-users] Odd sonus warning

[Gregory Boehnlein]

> Anything I should worry about?
 
Nothing to worry about. Freeswitch will deal with the issue, but there are a
few caveats.

I believe this is the most up-to date resource:

http://wiki.freeswitch.org/wiki/RTP_Issues#Sonus


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Re: [Freeswitch-users] FS in Amazon EC2 for production?

[Gregory Boehnlein]

Still here.. working.. making a living.. you know the drill. Not sure about
ClueCon this year.. I've curtailed a lot of my traveling and talking this
year as I've been doing a lot more consulting work. I'll look into it.. I
may be able to drive up if I can spare the time..

 

From: freeswitch-users-boun...@lists.freeswitch.org
[mailto:freeswitch-users-boun...@lists.freeswitch.org] On Behalf Of Anthony
Minessale
Sent: Wednesday, May 27, 2009 9:11 AM
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] FS in Amazon EC2 for production?

 

Hey Damin!

Glad to see you are still out there in the shadows.
You coming back to ClueCon this year? 



On Tue, May 26, 2009 at 11:31 AM, Gregory Boehnlein  wrote:

I can say, from having met with and talked to the CEO and founder of
Applogic that these guys are really revolutionary in their approach to cloud
computing. I spoke on a panel w/ the founder at an ISPcon several years ago,
and their approach is that of a utility company, treating computing
resources like that of a  power company. Cool stuff!

 

From: freeswitch-users-boun...@lists.freeswitch.org
[mailto:freeswitch-users-boun...@lists.freeswitch.org] On Behalf Of Chris
Danielson
Sent: Tuesday, May 26, 2009 11:39 AM
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] FS in Amazon EC2 for production?

 

There is a cloud computing company named 3Tera (AppLogic) that does have an
international presence and will keep your FreeSWITCH instance running on a
dedicated server using Xen and HA.  I spoke with one of their senior
engineers about 1 month ago in regards to actually setting up an LCR
scenario using their servers located in Europe and the United States.  These
guys are a little different in the cloud computing world and I believe
closer fit the needs of a telephony application.  As-is, there are companies
using 3tera for their Asterisk installs.  So if you want cloud computing
with dedicated hardware resources and a set geographic location, then these
guys do it.  Kind of the best of both worlds.  Just a quick 2 cents...

Regards,
Chris


Brian West wrote: 

 

On May 26, 2009, at 10:11 AM, Kristian Kielhofner wrote:

 

Hey Brian,

 FreeSWITCH in EC2 is a bit of a mystery to me...

 Call me old fashioned but in my mind VoIP and geography are linked
in %99 of scenarios.  Having VoIP services in a pure "cloud"
environment just doesn't sound like a good idea to me.

 Consider a "hosted" environment with clients registered to a
FreeSWITCH server.  One day your instance is physically running on
hardware in Seattle.  The next day it could (potentially) be running
in Chicago.  That's obviously a very different routing path for your
clients.  Even /if/ Amazon (or whomever) employs every routing/network
trick in the book you still won't be able to get over that change in
geography.

 

For some people this isn't a huge difference... now if it were to swap
continents then yes it would be a problem.  But I haven't seen Amazon do
this but I haven't left the instances up long enough to see.

 

 It's certainly possible a change like this may very well never
happen in practice.  I wouldn't know; I've never used EC2 and I don't
even know that much about it.  I'm just curious how well strictly,
practically speaking this will work in the long term.

 

There are other companies that do this stuff but personally me... I want my
stuff running on real hardware.

 

Brian West

br...@freeswitch.org

 

-- Meet us at ClueCon!  http://www.cluecon.com <http://www.cluecon.com/> 

 

 

 

 

 



  _  



 
 
 
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-- 
Anthony Minessale II

FreeSWITCH http://www.freeswitch.org/
ClueCon http://www.cluecon.com/

AIM: anthm
MSN:anthony_miness...@hotmail.com
<mailto:msn%3aanthony_miness...@hotmail.com> 
GTALK/JABBER/PAYPAL:anthony.miness...@gmail.com
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IRC: irc.freenode.net #freeswitch

FreeSWITCH Developer Conference
sip:8...@conference.freeswitch.org
<mailto:sip%3a...@conference.freeswitch.org> 
iax:gu...@conference.freeswitch.org/888
googletalk:conf+...@conference.freeswitch.org
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Re: [Freeswitch-users] FS in Amazon EC2 for production?

[Gregory Boehnlein]

I can say, from having met with and talked to the CEO and founder of
Applogic that these guys are really revolutionary in their approach to cloud
computing. I spoke on a panel w/ the founder at an ISPcon several years ago,
and their approach is that of a utility company, treating computing
resources like that of a  power company. Cool stuff!

 

From: freeswitch-users-boun...@lists.freeswitch.org
[mailto:freeswitch-users-boun...@lists.freeswitch.org] On Behalf Of Chris
Danielson
Sent: Tuesday, May 26, 2009 11:39 AM
To: freeswitch-users@lists.freeswitch.org
Subject: Re: [Freeswitch-users] FS in Amazon EC2 for production?

 

There is a cloud computing company named 3Tera (AppLogic) that does have an
international presence and will keep your FreeSWITCH instance running on a
dedicated server using Xen and HA.  I spoke with one of their senior
engineers about 1 month ago in regards to actually setting up an LCR
scenario using their servers located in Europe and the United States.  These
guys are a little different in the cloud computing world and I believe
closer fit the needs of a telephony application.  As-is, there are companies
using 3tera for their Asterisk installs.  So if you want cloud computing
with dedicated hardware resources and a set geographic location, then these
guys do it.  Kind of the best of both worlds.  Just a quick 2 cents...

Regards,
Chris


Brian West wrote: 

 

On May 26, 2009, at 10:11 AM, Kristian Kielhofner wrote:





Hey Brian,

 FreeSWITCH in EC2 is a bit of a mystery to me...

 Call me old fashioned but in my mind VoIP and geography are linked
in %99 of scenarios.  Having VoIP services in a pure "cloud"
environment just doesn't sound like a good idea to me.

 Consider a "hosted" environment with clients registered to a
FreeSWITCH server.  One day your instance is physically running on
hardware in Seattle.  The next day it could (potentially) be running
in Chicago.  That's obviously a very different routing path for your
clients.  Even /if/ Amazon (or whomever) employs every routing/network
trick in the book you still won't be able to get over that change in
geography.



 

For some people this isn't a huge difference... now if it were to swap
continents then yes it would be a problem.  But I haven't seen Amazon do
this but I haven't left the instances up long enough to see.

 

 It's certainly possible a change like this may very well never
happen in practice.  I wouldn't know; I've never used EC2 and I don't
even know that much about it.  I'm just curious how well strictly,
practically speaking this will work in the long term.



 

There are other companies that do this stuff but personally me... I want my
stuff running on real hardware.

 

Brian West

br...@freeswitch.org

 

-- Meet us at ClueCon!  http://www.cluecon.com  

 

 

 





 



  _  



 
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Re: [Freeswitch-users] Please end the torment

[Gregory Boehnlein]

You guys should setup 1-900-FREESWITCH w/ a $1 / minute charge.. :)



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Re: [Freeswitch-users] Please end the torment

[Gregory Boehnlein]

I hate forums. Forums suck. They are a pain in the ass to search and find
things. I prefer the mailing list and the Wiki. Can we please keep it that
way? It is really easy to find stuff via Nabble and the Wiki.


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Re: [Freeswitch-users] mod_g729

[Gregory Boehnlein]

> >> You use it on your own risk
> 
> Also, G.729 is patent encumbered big-time. Instead of lining the
> pockets of lawyers and mega-corporations by perpetuating the use of a
> crusty old codec we should all twist arms and get our providers,
> device makers, etc. to use Speex.

Yeah.. let me know when you get Cisco to add Speex support to IOS! ;)


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Re: [Freeswitch-users] [Freeswitch-dev] VMWare voice quality

[Gregory Boehnlein]

> On that note the OpenVZ instances could live migrate from box to box
> without dropping calls and usually had a small acceptable blip in
> audio.

OpenVZ is not a hypervisor. It essentially runs all of it's applications
natively on the CPU. I would expect that it would work under OpenVZ or other
container based (chrooted / jailed setups) well.



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Re: [Freeswitch-users] [Freeswitch-dev] VMWare voice quality

[Gregory Boehnlein]

> We have people running FreeSWITCH in vmware and xen with media and
> considerable load and it doesn't have a problem.  We also work very
> well inside OpenVZ.

I'd be very interested in seeing that, and knowing how it was done. 


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Re: [Freeswitch-users] [Freeswitch-dev] VMWare voice quality

[Gregory Boehnlein]

> To the contrary, we have had quite good results in virtualized
> environments and you don't really need timing that is that accurate to
> make it work.

If you don't handle RTP, I'm sure it is amazing. However, if you have to do
voicemail, stream audio from the server or do any kind of actual
time/latency/jitter sensitive processing, I don't care how much you tune
your hypervisor, it's never going to scale.

> We work quite well on amazon EC2 for example.  There
> are 2 issues I know about with vmware, 1 is you need to set a setting
> on the host to extend somewhat sane clocks being available, the second
> is I have seen issues with the bridged network adapter actually
> doubling up all packets causing very strange issues, I suggest not
> using bridged networking if you experience this.

I've not seen this behavior on Vmware ESX 3.5u2. Maybe an issue on Vmware
Server or Workstation?


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Re: [Freeswitch-users] [Freeswitch-dev] VMWare voice quality

[Gregory Boehnlein]

That won't eliminate the problem. Just reduce the possibility of it
happening.

Trust me... I've got a large ESX infrastructure, and there is no way that a
software based Voice platform is going to provide skip free audio in a
virtualized environment.

> -Original Message-
> From: freeswitch-dev-boun...@lists.freeswitch.org [mailto:freeswitch-
> dev-boun...@lists.freeswitch.org] On Behalf Of Ken Rice
> Sent: Thursday, January 15, 2009 12:15 PM
> To: freeswitch-users@lists.freeswitch.org; Remko Kloosterman;
> freeswitch-...@lists.freeswitch.org
> Subject: Re: [Freeswitch-dev] [Freeswitch-users] VMWare voice quality
> 
> On 1/15/09 11:01 AM, "Remko Kloosterman"  wrote:
> 
> > Hello Ken, hello all,
> >
> > I just read about the FreeSWITCH VMware applicance. I'm curious about
> > your experiences with the audio quality on VMWare, so here's a new
> > thread.
> >
> > I've installed freeswitch on VMware Server for Windows. The IVR audio
> > always plays choppy, while the server itself has no performance
> issues.
> > The same poor voice quality also goes for Asterisk or Yate, even on a
> > very fast VMware ESX system.
> >
> > Did you experience the same and/or do you have pointers on how to
> > troubleshoot and fix this?
> 
> 
> There is a high resolution timer you need to enable on vmware... I'm
> not
> familiar enuff with all the versions of vmware to advise there that
> switch
> is, but they have a couple of articles on it in their knowledge base
> 
> 
> 
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Re: [Freeswitch-users] VMWare voice quality

[Gregory Boehnlein]

You'll never fix this. Voice is a latency specific application unless you
figure out how to manipulate time. Any virtualization platform is going to
provide less timing granularity than raw hardware.

> Hello Ken, hello all,
> 
> I just read about the FreeSWITCH VMware applicance. I'm curious about
> your experiences with the audio quality on VMWare, so here's a new
> thread.
> 
> I've installed freeswitch on VMware Server for Windows. The IVR audio
> always plays choppy, while the server itself has no performance issues.
> The same poor voice quality also goes for Asterisk or Yate, even on a
> very fast VMware ESX system.
> 
> Did you experience the same and/or do you have pointers on how to
> troubleshoot and fix this?


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[Freeswitch-users] OSP Interop w/ Trans Nexus

[Gregory Boehnlein]

Anyone know if Freeswitch can work w/ OSP and use something like Transnexus
for CDR/Rating?


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