Eric Wieling wrote:
Kevin Walsh wrote:
Benjamin on Asterisk Mailing Lists [EMAIL PROTECTED] wrote:
Can you set up a test call where Asterisk will transcode from ulaw to ILBC and see what it does to your CPU load?
How should I go about creating such a test call?
Also, try recalculating the translation matrix display values by typing "show translation recalc 5".
Okay, that causes asterisk to crash...
callcentre*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 4 2 1 237 - - 13561
ULAW - 5 - 1 4 2 1 237 - - 13561
ALAW - 5 1 - 4 2 1 237 - - 13561
G726 - 6 3 3 - 3 2 238 - - 13562
ADPCM - 5 2 2 4 - 1 237 - - 13561
SLINR - 4 1 1 3 1 - 236 - - 13560
LPC10 - 133 130 130 132 130 129 - - - 13689
G729A - - - - - - - - - - -
SPEEX - - - - - - - - - - -
ILBC - 200 197 197 199 197 196 432 - - -
callcentre*CLI> show translation recalc 10
Recalculating Codec Translation (number of sample seconds: 10)callcentre*CLI> show translation callcentre*CLI>
If that doesn't work disable the RAID card and try again.
I can't do that right now for various reasons, but upon looking closer into our configuration, it seems we are just using an IDE Controller Card and software raid that's built in to linux.
I have noticed that when * is first loading, CPU usage goes to 100% for exactly the same duration that it takes that ilbc codec to load.
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