[asterisk-bugs] [Asterisk 0015973]: Huge memory consumption after few hours of load

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=15973 
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Reported By:                atis
Assigned To:                
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Project:                    Asterisk
Issue ID:                   15973
Category:                   Core/General
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.6.1.5 
JIRA:                        
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-09-27 17:14 CDT
Last Modified:              2009-09-28 14:11 CDT
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Summary:                    Huge memory consumption after few hours of load
Description: 
I'm doing load tests on Asterisk 1.6.1.5 and after few hours of load, it
takes 80% of ram (6GB installed), so it becomes unable to fork itself (when
using System() dialplan app), and creating core dump takes an hour. Core
dumps are in size of 9 Gigabytes.

Memory summary doesn't show anytingh of much usage:

80469516 bytes allocated (8800 in caches) in 71421 allocations

while top shows:

Mem:   6055876k total,  6009316k used,    46560k free,    19220k buffers
Swap:  4096564k total,  4096548k used,       16k free,   249980k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
15870 asterisk  10 -10 9780m 4.8g 3936 S    6 83.1 505:00.32 asterisk

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 (0111457) tilghman (administrator) - 2009-09-28 14:11
 https://issues.asterisk.org/view.php?id=15973#c111457 
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[13:43]  <lmadsen> I'm not sure what to ask for there
[13:45]  <Corydon76-lap> I'm not sure that it's a bug in Asterisk
[13:46]  <Corydon76-lap> as I mentioned in #asterisk-dev over the weekend
[13:46]  <Corydon76-lap> Linux does NOT release memory allocated to the
process back to the core until the process ends.  Ever.
[13:47]  <Corydon76-lap> So if his massive load once took up 4.8GB of
memory, then it's going to continue to take up that amount until the
process dies
[13:48]  <Corydon76-lap> and there is ZERO that we can do to change that
[13:48]  <Corydon76-lap> only thing to fix it is to add more swap 

Issue History 
Date Modified    Username       Field                    Change               
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2009-09-28 14:11 tilghman       Note Added: 0111457                          
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