asterisk users - Aug 2005 - chan_unical-MFC/R2 CPU usage problem

Hi All,

I have installed chan_unicall and MFC/R2 successfully, and is runnign fine.
But I noticed that once unicall is installed, asterisk CPU usage as reported by
'top', jumps to 99% every few seconds.
I have no incoming calls, and I have even removed the E1 lines from card and I
tried almost everything possible but I was not successful in determining the
cause of this high cpu utilization.

Can anybody hint at what might be causing such a behaviour? Or a possible
solution?
Assuming it is a problem ofcourse.

My setup includes:
asterisk 1.0.9, libpri 1.0.9, and zaptel 1.0.9.1
Unicall 0.0.3pre3 and tried unicall-0.0.2c
Digium TE410p
Intel SE7520BD2 with Xeon 3.4GHz, 2 Gig Ram

Any help is highly appreciated.

Hadi.

Hi,

Hadi Jadallah wrote:
> I have installed chan_unicall and MFC/R2 successfully, and is runnign fine.
> But I noticed that once unicall is installed, asterisk CPU usage as
reported by 'top', jumps to 99% every few seconds.
> I have no incoming calls, and I have even removed the E1 lines from card
and I tried almost everything possible but I was not successful in determining
the cause of this high cpu utilization.
It happens here too. But only when there is at least one Unicall channel 
  up. It does not happen on every call and I couldn't find a pattern yet.
> My setup includes:
> asterisk 1.0.9, libpri 1.0.9, and zaptel 1.0.9.1
> Unicall 0.0.3pre3 and tried unicall-0.0.2c
> Digium TE410p
> Intel SE7520BD2 with Xeon 3.4GHz, 2 Gig Ram
Almost the same setup here. The only difference is hardware. Soyo + P4 
2.8 512MB.

You didn't specify your R2 variant. Here it's the brazilian and the 
Asterisk box is connected on an Ericsson MD110.

I'll upgrade to 0.0.3pre4 now. Maybe it's fixed in this version ?

Bye,

Leonardo

Hi,

My variant is standard ITU, I tried almost all versions I could put my hand on
to no avail.
I tried also to profile the channel and related libraries to no avail as my
profiling skills on linux are abit lacking.
If anybody with this problem and knows how to profile multithreaded apps on
linux then we might at least pinpoint the location of the error.
I cant realy put the machine into active duty if I cant solve the problem.

Btw, what version of libtiff are you using? It difficult to believe that it
might be related as I don?t need the fax functionality. Mine is the version that
comes with CentOS 4.1 which is 3.6.1.

Hadi.

> Message: 21
> Date: Wed, 24 Aug 2005 13:01:15 -0300
> From: Leonardo Gomes Figueira <sabbath@planetarium.com.br>
> Subject: Re: [Asterisk-Users] chan_unical-MFC/R2 CPU usage problem
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> 	<asterisk-users@lists.digium.com>
> Message-ID: <430C99CB.5030108@planetarium.com.br>
> Content-Type: text/plain; charset=UTF-8; format=flowed
> 
> Hi,
> 
> Hadi Jadallah wrote:
> > I have installed chan_unicall and MFC/R2 successfully, and 
> is runnign fine.
> > But I noticed that once unicall is installed, asterisk CPU 
> usage as reported by 'top', jumps to 99% every few seconds.
> > I have no incoming calls, and I have even removed the E1 
> lines from card and I tried almost everything possible but I 
> was not successful in determining the cause of this high cpu 
> utilization.
> 
> It happens here too. But only when there is at least one 
> Unicall channel 
>   up. It does not happen on every call and I couldn't find a 
> pattern yet.
> 
> > My setup includes:
> > asterisk 1.0.9, libpri 1.0.9, and zaptel 1.0.9.1
> > Unicall 0.0.3pre3 and tried unicall-0.0.2c
> > Digium TE410p
> > Intel SE7520BD2 with Xeon 3.4GHz, 2 Gig Ram
> 
> Almost the same setup here. The only difference is hardware. 
> Soyo + P4 
> 2.8 512MB.
> 
> You didn't specify your R2 variant. Here it's the brazilian and the
> Asterisk box is connected on an Ericsson MD110.
> 
> I'll upgrade to 0.0.3pre4 now. Maybe it's fixed in this version ?
> 
> Bye,
> 
> Leonardo
> 
> 
> 
>

Hi,

Hadi Jadallah wrote:
> My variant is standard ITU, I tried almost all versions I could put my hand
on to no avail.
> I tried also to profile the channel and related libraries to no avail as my
profiling skills on linux are abit lacking.
> If anybody with this problem and knows how to profile multithreaded apps on
linux then we might at least pinpoint the location of the error.
> I cant realy put the machine into active duty if I cant solve the problem.
> 
> Btw, what version of libtiff are you using? It difficult to believe that it
might be related as I don?t need the fax functionality. Mine is the version that
comes with CentOS 4.1 which is 3.6.1.
libtiff 3.5.7.


  Leonardo

Hi,

I was running asterisk using the init.d script. Turns out if I don?t use the
init.d script and run asterisk either directly 'asterisk -vvvvvvvvvg
&' or putting safe_asterisk in rc.local then the cpu utilization problem
does not happen anymore.
> 
> Hi,
> 
> My variant is standard ITU, I tried almost all versions I 
> could put my hand on to no avail.
> I tried also to profile the channel and related libraries to 
> no avail as my profiling skills on linux are abit lacking.
> If anybody with this problem and knows how to profile 
> multithreaded apps on linux then we might at least pinpoint 
> the location of the error.
> I cant realy put the machine into active duty if I cant solve 
> the problem.
> 
> Btw, what version of libtiff are you using? It difficult to 
> believe that it might be related as I don?t need the fax 
> functionality. Mine is the version that comes with CentOS 4.1 
> which is 3.6.1.
> 
> Hadi.
> 
> 
> > Message: 21
> > Date: Wed, 24 Aug 2005 13:01:15 -0300
> > From: Leonardo Gomes Figueira <sabbath@planetarium.com.br>
> > Subject: Re: [Asterisk-Users] chan_unical-MFC/R2 CPU usage problem
> > To: Asterisk Users Mailing List - Non-Commercial Discussion
> > 	<asterisk-users@lists.digium.com>
> > Message-ID: <430C99CB.5030108@planetarium.com.br>
> > Content-Type: text/plain; charset=UTF-8; format=flowed
> > 
> > Hi,
> > 
> > Hadi Jadallah wrote:
> > > I have installed chan_unicall and MFC/R2 successfully, and 
> > is runnign fine.
> > > But I noticed that once unicall is installed, asterisk CPU 
> > usage as reported by 'top', jumps to 99% every few seconds.
> > > I have no incoming calls, and I have even removed the E1 
> > lines from card and I tried almost everything possible but I 
> > was not successful in determining the cause of this high cpu 
> > utilization.
> > 
> > It happens here too. But only when there is at least one 
> > Unicall channel 
> >   up. It does not happen on every call and I couldn't find a 
> > pattern yet.
> > 
> > > My setup includes:
> > > asterisk 1.0.9, libpri 1.0.9, and zaptel 1.0.9.1
> > > Unicall 0.0.3pre3 and tried unicall-0.0.2c
> > > Digium TE410p
> > > Intel SE7520BD2 with Xeon 3.4GHz, 2 Gig Ram
> > 
> > Almost the same setup here. The only difference is hardware. 
> > Soyo + P4 
> > 2.8 512MB.
> > 
> > You didn't specify your R2 variant. Here it's the brazilian
and the
> > Asterisk box is connected on an Ericsson MD110.
> > 
> > I'll upgrade to 0.0.3pre4 now. Maybe it's fixed in this
version ?
> > 
> > Bye,
> > 
> > Leonardo
> > 
> > 
> > 
> > 
>

Hi there,

i've become curious about chan_unical and found the information site at 
the wiki: http://www.voip-info.org/tiki-index.php?page=Asterisk+MFC+R2 .

i understand that it uses a different architectue as zaptel with libpri 
and chan_zap.

can anybody explain briefly the main advantage of chan_unical over 
chan_zap ??

thx in advance

tobias