Hi all,
I'm using 'show translation' to help dimension my system, but I confused
by the results I get. My 2 test systems (results below): an AthlonXP
2000+ (1.3GHz) and a Pentium D930 (duo-core, 3.0GHz) produced similar
results (D930 is slightly faster). Googling shows that others have
similar results running on other CPU speeds >2.0GHz.
At first glance, it would look like the AthlonXP gives better bang for
the buck :). But, I'm sure that are other reasons. I know show
translation times how long it takes a convert 1s of full duplex audio. I
suspect the test is using a single CPU (since it's in a single thread)
and there are some constant overheads that makes a 3.0GHz produce the
same numbers as a 1.3GHz.
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.
Leo
Results from show translation:
On the athlon:
g723 gsm ulaw alaw g726 adpcm slin lpc10 g729 speex ilbc
g723 - 3 2 2 2 2 1 3 10 11 13
gsm - - 2 2 2 2 1 3 10 11 13
ulaw - 3 - 1 2 2 1 3 10 11 13
alaw - 3 1 - 2 2 1 3 10 11 13
g726 - 3 2 2 - 2 1 3 10 11 13
adpcm - 3 2 2 2 - 1 3 10 11 13
slin - 2 1 1 1 1 - 2 9 10 12
lpc10 - 4 3 3 3 3 2 - 11 12 14
g729 - 4 3 3 3 3 2 4 - 12 14
speex - 4 3 3 3 3 2 4 11 - 14
ilbc - 4 3 3 3 3 2 4 11 12 -
On the D930:
g723 gsm ulaw alaw g726 adpcm slin lpc10 g729 speex ilbc
g723 - - - - - - - - - - -
gsm - - 2 2 2 2 1 5 9 10 14
ulaw - 2 - 1 2 2 1 5 9 10 14
alaw - 2 1 - 2 2 1 5 9 10 14
g726 - 2 2 2 - 2 1 5 9 10 14
adpcm - 2 2 2 2 - 1 5 9 10 14
slin - 1 1 1 1 1 - 4 8 9 13
lpc10 - 3 3 3 3 3 2 - 10 11 15
g729 - 3 3 3 3 3 2 6 - 11 15
speex - 3 3 3 3 3 2 6 10 - 15
ilbc - 3 3 3 3 3 2 6 10 11 -
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