[Freeswitch-users] unexplained RAM usage increase

[Anthony Minessale]

Can you systematically increase the current call count and see where you do
see something?
On a system with limited ram you can also consider stripping all the .so
files in the mods and lib dir but you will need to put non-stripped ones in
for any debugging.

I don't really see a correlation on how not using a timer could trigger an
sustained memory increase so that's why I'd like you to step up the number
and see if you can find a number of calls that tops out because usually
there always is a magic number where it will hover and go up and down a meg
at a time.

SIP calls are required to keep state data around for at least 30 seconds
after a call ends and there are a number of pools in the code that inflate
once and do not return the memory.  Its usually possible to identify the
high watermark on a particular box.

For instance the machine we host the conference call on launches using 25
megs and hovers at about 350 megs once it has accumulated all the pool
memory it needs over time.





On Tue, Jan 29, 2013 at 8:33 AM, Jeff Pyle <jpyle at fidelityvoice.com> wrote:

> Version:
>   FreeSWITCH version: 1.3.4-n20130122T122521Z-1~squeeze+1
> (-n20130122T122521Z-1~squeeze+1)
>
> The calls are bridged, from one sofia profile to another.
>
> Unfortunately two concurrent calls doesn't seem to trigger the same
> behavior.
>
>
> - Jeff
>
>
> On Mon, Jan 28, 2013 at 11:21 PM, Ken Rice <krice at freeswitch.org> wrote:
>
>>  Ok the package timestamps/versions there don’t do us a lot of good, we
>> need to know the version line from the FreeSWITCH CLI..
>>
>>
>> On 1/28/13 9:59 PM, "Jeff Pyle" <jpyle at fidelityvoice.com> wrote:
>>
>> I just updated from repo.profhost.eu <http://repo.profhost.eu> .  The
>> most recent timestamp on the packages was 2013-01-28 03:41:21 GMT.  Same
>> behavior.  At 5 minutes it was using 12.5% RAM.  At 40 minutes, 60.4%.
>>  After disconnecting the calls the usage returned to 8.5%.
>>
>>
>> I started toggling config items to see if I could impact this.  I found
>> one that seems to have an effect:  rtp-timer-name in the sofia profile
>> config.  By changing it from 'soft' to 'none', the CPU utilization with 30
>> calls dropped from ~70% to ~46%, and the RAM usage is rock solid at 5.8%.
>>
>> That's great, but does it make any sense?
>>
>> Does an rtp-timer-name of 'none' pose any risks?
>>
>>
>>
>> - Jeff
>>
>>
>>
>> On Mon, Jan 28, 2013 at 8:43 PM, Jeff Pyle <jpyle at fidelityvoice.com>
>> wrote:
>>
>> It's on Voyage Linux, a cousin of Debian.  I believe it uses glibc.
>>
>>
>> - Jeff
>>
>>
>> On Mon, Jan 28, 2013 at 6:45 PM, Kristian Kielhofner <kris at kriskinc.com>
>> wrote:
>>
>> Out of curiosity does your distro use uclibc, eglibc, or glibc?
>>
>> On Mon, Jan 28, 2013 at 5:41 PM, Jeff Pyle <jpyle at fidelityvoice.com>
>> wrote:
>> > Hello,
>> >
>> > I'm running HEAD version from Jan 22 on an Alix board with an AMD Geode
>> LX
>> > processor (i386).  I can sustain 30 concurrent calls averaging around
>> 70%
>> > CPU utilization by the freeswitch process, measured by top.  Bypass
>> media
>> > and proxy media are disabled.  PCMU is forced on both endpoints (no
>> > transcoding).
>> >
>> > The problem is the RAM usage over time.  The board has 256M.  Idle,
>> > freeswitch occupies around 4% after a fresh restart.  A minute or so
>> after
>> > 30 calls are nailed up the RAM usage is about 7.2%.  After 5 minutes,
>> 13.6%.
>> > After 60 minutes, near 65%.  Disconnecting the calls returns the RAM
>> usage
>> > to 6-8%.
>> >
>> > I've not tried to troubleshoot an issue like this before.  Is valgrind
>> the
>> > next step, or would something else make more sense?
>> >
>> >
>> > Regards,
>> > Jeff
>>
>>
>>
>
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-- 
Anthony Minessale II

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