[asterisk-users] Codec and CPU load

[Miguel Otamendi]

Hi

There are some tools that you may hold serve, check these link:

http://www.bandcalc.com/
http://codec-calculator.softonic.com/mac

Miguel Otamendi


2008/8/27 Gordon Henderson
<gordon+asterisk at drogon.net<gordon%2Basterisk at drogon.net>
>

> On Tue, 26 Aug 2008, aymen warfalli wrote:
>
> >
> > Hi
> >
> > as maximum link capacity could be calculated using codecs and channel
> > types so , regarding the CPU and processors load , Is there any formula
> > or (any relations could help ) that can give the maximum CPU load
> > (mainly processor and RAM ) or scalability average using asterisk
> > channels , codecs , applications ?.
>
> The easy answer to this is: No.
>
> Far too many variables. Not just cpu speed, but cpu cache size, memory
> type & speed, external interfaces (over a PCI bus/TDM or Ethernet/SIP/IAX)
> other tasks the CPU might be doing, compile-time optimisations, kernel
> optimisations, etc.
>
> As a generalisation, without transcoding you'll be able to manage 100's of
> calls on a modern Intel or AMD server platform, but all bets are off when
> you turn on transcoding, echo cancellation, etc.
>
> Gordon
>
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