On 23 Dec 2006, at 08:47, Dinesh Nair wrote:
On 12/23/06 09:51 Leo Ann Boon said the following:
I would love to hear how others are using the results from show
translation in system dimensioning. So far, I feel that
dimensioning an Asterisk box is still mostly guesstimation :).
Currently, I'm using the 30MHz per call rule to dimension.
on a Pentium D 2.80Ghz, we've sustained 300 simultaneous IAX2 calls
terminating in a dialplan loop that answers the call, waits 2
seconds, plays demo-instruct and loops again.
a cursory examination revealed that a large portion of the CPU was
used to handle NIC interrupts. occasionally we got a chan_iax2.so
error which said, "Maximum trunk data space exceeded to..."
this seems to be controlled by the MAX_TRUNKDATA constant in
chan_iax2.c which is set to 40ms of SLIN for 200 calls. it'd be
nice to know what this constant is for and what would the
implications of increasing it be.
I'm interested in this, our IAX softphone SDK is licensed by the
_server_ and customers ask how
many calls they can push through a server. I'm currently saying
'about 200' with decent hardware.
Could you tell me which asterisk version you tested this on ? Also
how many of these calls
were over trunked IAX and how many 'normal' ?
Thanks _very_ much.
Tim.
Tim Panton
www.mexuar.net
www.westhawk.co.uk/
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