[asterisk-users] Performance Issues Degradation After 6 Calls

[broadband Voice]

I figured it out from asteriskguru.org. If you are using kernel 2.6 enter
the following command '#make linux26', before doing '#make install'.
and also do ./configure. Hope it will help someone else.


On 12/29/07, Gordon Henderson <gordon+asterisk at drogon.net> wrote:
>
> On Fri, 28 Dec 2007, Steve Totaro wrote:
>
> > Gordon Henderson wrote:
> >> On Fri, 28 Dec 2007, Steve Totaro wrote:
> >>
> >>
> >>> broadband Voice wrote:
> >>>
> >>>> On 12/27/07, *broadband Voice* <broadbandvoice at gmail.com
> >>>> <mailto:broadbandvoice at gmail.com>> wrote:
> >>>>
> >>>>     I am using Asterisk and A2billing Calling Card Platform and after
> >>>>     the 6th call the quality starts to degrade. The way it set up is
> >>>>     the user calls into the system then dial out so I have 12
> channels
> >>>>     being used up but 6 active calls. Here are my specs Asterisk
> >>>>     SVN-branch-1.4-r79142 on a i686 running Linux Fedora 6, Pentium 4
> >>>>     Hyper-Threading, 64 bit, 1GB of RAM, 80 GB Sata Drive, bandwidth
> 4
> >>>>     Mbps (1300GB/Throughput) burstable to 100Mbps.
> >>>>
> >>>>     I am planning on upgrading to Intel Core 2 Duo with a clock speed
> >>>>     of 1.8GHZ and 2GB Ram. Does anyone have similar situation or
> >>>>     advice? Thanks.
> >>>>
> >>>>
> >>>>
> >>> Your system should be able to handle that volume easily.
> >>>
> >>> What are you using for PSTN connectivity?
> >>>
> >>> I have heard of people having issues with Hyperthreading.  That could
> be
> >>> a problem, although I have never had any issues myself.
> >>>
> >>> What does top look like?
> >>>
> >>> When I had a similar issue (voice quality while running monitor on
> over
> >>> seventy calls) I found a small Linux CLI app, I cannot remember the
> name
> >>> of it but it would give IO stats (I think it may be named IOStat or
> >>> something similar) and I could see right where the bottleneck was
> >>> (obviously disc IO but I was able to see exactly where the breaking
> >>> point was).  That may help identify something.
> >>>
> >>
> >> Try:
> >>
> >>    vmstat 1
> >>
> >> IIRC, iostat is a *BSD type utility, but it's been many years since I
> >> touched BSD!
> >>
> >> It is possible to graph disk IO as well as network packet IO if
> required
> >> using (eg) MRTG.
> >>
> >> Gordon
> >>
> >>
> >
> >
> http://www.linuxquestions.org/linux/articles/Jeremys_Magazine_Articles/Hunting_I_O_Bottlenecks_with_iostat
>
> Ah, intersting, so I was about to suggest it might be a distro thing, but
> digging deeper, I find there is an iostat for Debian - under the generic
> package "sysstat" which is why I've never found it in the past.
>
> The iostat I remember for BSD had a screen/curses interface, but scrolling
> might help you see trends.
>
> Cheers,
>
> Gordon
>
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