[asterisk-bugs] [Asterisk 0016507]: [regression] heavy CPU usage when using iax channel

Asterisk Bug Tracker noreply at bugs.digium.com
Thu May 6 15:56:35 CDT 2010


A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=16507 
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Reported By:                marcelloceschia
Assigned To:                
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Project:                    Asterisk
Issue ID:                   16507
Category:                   Channels/chan_iax2
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           SVN 
JIRA:                       SWP-833 
Regression:                 Yes 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-12-23 04:58 CST
Last Modified:              2010-05-06 15:56 CDT
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Summary:                    [regression] heavy CPU usage when using iax channel
Description: 
When making a call using iax channel, i have a high cpu usage
https://issues.asterisk.org/view.php?id=18#c97%
This does not only happens while transcoding audio, also with the same
codecs on both sides.

after a short time, i get the following cli output:

[Dec 23 11:45:29] WARNING[12300]: channel.c:1045 __ast_queue_frame:
Exceptionally long voice queue length queuing to IAX2/diax-6892

Calling sip2sip has a cpu usage about 1.5% per call
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Relationships       ID      Summary
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duplicate of        0015609 [patch] WARNING[23025]: channel.c:952 _...
related to          0017214 Exceptionally long voice queuing when u...
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---------------------------------------------------------------------- 
 (0121511) toofic (reporter) - 2010-05-06 15:56
 https://issues.asterisk.org/view.php?id=16507#c121511 
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That seems to work!!

Using res_timing_dahdi with dahdi_dummy solved the crashes, the high cpu
load and the "Exceptionally long voice queue length queuing to IAX2..."
messages.

At least it has been running for 2 days without any problems, that's a
relief!! as it was crashing several times per day.

Thnks! 

Issue History 
Date Modified    Username       Field                    Change               
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2010-05-06 15:56 toofic         Note Added: 0121511                          
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