We changed from Fedora to Debian and saw the following increase in
performance:
Before:
G723 GSM ULAW ALAW G726 ADPCM SLINR LPC10 G729A SPEEX ILBC
G723 - - - - - - - - - - -
GSM - - 6 6 15 6 5 22 - - 192
ULAW - 128 - 1 11 2 1 18 - - 188
ALAW - 128 1 - 11 2 1 18 - - 188
G726 - 136 10 10 - 10 9 26 - - 196
ADPCM - 128 2 2 11 - 1 18 - - 188
SLINR - 127 1 1 10 1 - 17 - - 187
LPC10 - 241 115 115 124 115 114 - - - 301
G729A - - - - - - - - - - -
SPEEX - - - - - - - - - - -
ILBC - 144 18 18 27 18 17 34 - - -
After:
g723 gsm ulaw alaw g726 adpcm slin lpc10 g729 speex ilbc
g723 - - - - - - - - - - -
gsm - - 2 2 3 2 1 6 - - 14
ulaw - 3 - 1 3 2 1 6 - - 14
alaw - 3 1 - 3 2 1 6 - - 14
g726 - 4 3 3 - 3 2 7 - - 15
adpcm - 3 2 2 3 - 1 6 - - 14
slin - 2 1 1 2 1 - 5 - - 13
lpc10 - 4 3 3 4 3 2 - - - 15
g729 - - - - - - - - - - -
speex - - - - - - - - - - -
ilbc - 4 3 3 4 3 2 7 - - -
Of course we did also upgrade from a PIII 500 to dual 3 GHz Xeon
processors, but I doubt that had anything to do with it.
el Flynn wrote:
Michael Vogel wrote:
Thanks! That helps me a lot. Am I right that this chart is calculated
depending my machine's speed:
yes, the numbers will vary depending on your system load.
#######################################################################
zhad*CLI> show translation
Translation times between formats (in milliseconds)
Source Format (Rows) Destination Format(Columns)
G723 GSM ULAW ALAW G726 ADPCM SLINR LPC10 G729A SPEEX ILBC
G723 - - - - - - - - - - -
GSM - - 13 13 47 15 12 43 - 253 124
ULAW - 41 - 1 36 4 1 32 - 242 113
ALAW - 41 1 - 36 4 1 32 - 242 113
G726 - 82 43 43 - 45 42 73 - 283 154
ADPCM - 43 4 4 38 - 3 34 - 244 115
SLINR - 40 1 1 35 3 - 31 - 241 112
LPC10 - 58 19 19 53 21 18 - - 259 130
G729A - - - - - - - - - - -
SPEEX - 52 13 13 47 15 12 43 - - 124
ILBC - 59 20 20 54 22 19 50 - 260 -
zhad*CLI>
#######################################################################
Encoding to speex or ilbc seems to be too heavy for my machine ;-)
hmm.. those numbers look a little... high... does it show the same
values when your box is idle? mine gives the following, when there's
no traffic going through:
demo*CLI> show translation
Translation times between formats (in milliseconds)
Source Format (Rows) Destination Format(Columns)
G723 GSM ULAW ALAW G726 ADPCM SLINR LPC10 G729A SPEEX ILBC
G723 - - - - - - - - - - -
GSM - - 2 2 3 2 1 - - - -
ULAW - 4 - 1 3 2 1 - - - -
ALAW - 4 1 - 3 2 1 - - - -
G726 - 4 2 2 - 2 1 - - - -
ADPCM - 4 2 2 3 - 1 - - - -
SLINR - 3 1 1 2 1 - - - - -
LPC10 - - - - - - - - - - -
G729A - - - - - - - - - - -
SPEEX - - - - - - - - - - -
ILBC - - - - - - - - - - -
flynn
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