[Freeswitch-users] Timing issues in AWS?

Thu Nov 17 18:19:45 MSK 2011

Huh...  maybe I need to get my own CentOS build up there instead of rely on
Rightscale's 64 bit image...  That's a whole other ball of wax I was trying
to avoid having to figure out to do...

Mike

On Thu, Nov 17, 2011 at 8:49 AM, Stephen Dame <sdame at 207me.com> wrote:

> I’m running freeswitch on about 40  different m1.small c1.medium’s in AWS
> regions, us-east, us-west, eu-west, and asia….  They are used in videoconf
> component of BigBlueButton.org .   For most part they work great… There are
> occasional issues with voip quality but the app is 100% voip, with the BBB
> client all browser based.  So the conference is subject to every ones local
> network connections and most issues “blamed” on the internet instead of
> freeswitch J  We also tie in skype and DID direct to improve latency for
> some clients.  But expectations are set so we meet them.****
>
> ** **
>
> You probably have tougher business conferencing clients that want perfect
> audio.  But these are production deployed and generate revenue.      All
> these are on Ubuntu 10.04 official amis with no mods to kernels.  ****
>
> ** **
>
> I’m sure there are tweaks that can be made, and bare metal solutions that
> would work a little better…  Does anyone have any ideas how to optimize a
> Ubuntu instance.  I would engage in a few hours of consulting is so.****
>
> ** **
>
> The tests below are interesting but above my paygrade to understand what
> they mean? ****
>
> ** **
>
> I’m running them but don’t have a clue how to interpret.  If you want a
> simple of real running data, would be glad to run sample tests on these
> distributed servers and provide back for analysis.****
>
> ** **
>
> Regards,****
>
> Stephen****
>
> ** **
>
> *From:* freeswitch-users-bounces at lists.freeswitch.org [mailto:
> freeswitch-users-bounces at lists.freeswitch.org] *On Behalf Of *Michael
> Picher
> *Sent:* Thursday, November 17, 2011 8:03 AM
> *To:* FreeSWITCH Users Help
> *Subject:* Re: [Freeswitch-users] Timing issues in AWS?****
>
> ** **
>
> Not having anywhere near the same trouble in a Xen Server in my lab...
>
> Although test_time is skewed 180 degrees from what it was in AWS....
>
> freeswitch at internal> timer_test 120 10****
>
> Avg: 119.945ms Total Time: 1199.727ms
>
> 2011-11-17 07:57:22.721105 [CONSOLE] mod_commands.c:461 Timer Test:
> samplecount after init: 1
> 2011-11-17 07:57:22.751026 [CONSOLE] mod_commands.c:466 Timer Test:
> samplecount after first step: 2
> 2011-11-17 07:57:22.872047 [CONSOLE] mod_commands.c:475 Timer Test: 1
> sleep 120 120993
> 2011-11-17 07:57:22.990983 [CONSOLE] mod_commands.c:475 Timer Test: 2
> sleep 120 118914
> 2011-11-17 07:57:23.110953 [CONSOLE] mod_commands.c:475 Timer Test: 3
> sleep 120 119919
> 2011-11-17 07:57:23.230928 [CONSOLE] mod_commands.c:475 Timer Test: 4
> sleep 120 120032
> 2011-11-17 07:57:23.350831 [CONSOLE] mod_commands.c:475 Timer Test: 5
> sleep 120 119802
> 2011-11-17 07:57:23.470886 [CONSOLE] mod_commands.c:475 Timer Test: 6
> sleep 120 119999
> 2011-11-17 07:57:23.590873 [CONSOLE] mod_commands.c:475 Timer Test: 7
> sleep 120 119975
> 2011-11-17 07:57:23.710893 [CONSOLE] mod_commands.c:475 Timer Test: 8
> sleep 120 120003
> 2011-11-17 07:57:23.830774 [CONSOLE] mod_commands.c:475 Timer Test: 9
> sleep 120 119849
> 2011-11-17 07:57:23.950808 [CONSOLE] mod_commands.c:475 Timer Test: 10
> sleep 120 119971****
>
>
> freeswitch at internal> time_test 600 10****
>
> test 1 sleep 600 1
> test 2 sleep 600 1
> test 3 sleep 600 0
> test 4 sleep 600 1
> test 5 sleep 600 0
> test 6 sleep 600 1
> test 7 sleep 600 1
> test 8 sleep 600 0
> test 9 sleep 600 0
> test 10 sleep 600 1
> avg 0****
>
>
> [root at openuc bin]# uname -r****
>
> 2.6.18-274.7.1.el5****
>
>
> [root at openuc bin]# grep CONFIG_HZ /boot/config-*****
>
> /boot/config-2.6.18-238.12.1.el5:# CONFIG_HZ_100 is not set
> /boot/config-2.6.18-238.12.1.el5:# CONFIG_HZ_250 is not set
> /boot/config-2.6.18-238.12.1.el5:CONFIG_HZ_1000=y
> /boot/config-2.6.18-238.12.1.el5:CONFIG_HZ=1000
> /boot/config-2.6.18-238.19.1.el5:# CONFIG_HZ_100 is not set
> /boot/config-2.6.18-238.19.1.el5:# CONFIG_HZ_250 is not set
> /boot/config-2.6.18-238.19.1.el5:CONFIG_HZ_1000=y
> /boot/config-2.6.18-238.19.1.el5:CONFIG_HZ=1000
> /boot/config-2.6.18-238.9.1.el5:# CONFIG_HZ_100 is not set
> /boot/config-2.6.18-238.9.1.el5:# CONFIG_HZ_250 is not set
> /boot/config-2.6.18-238.9.1.el5:CONFIG_HZ_1000=y
> /boot/config-2.6.18-238.9.1.el5:CONFIG_HZ=1000
> /boot/config-2.6.18-274.3.1.el5:# CONFIG_HZ_100 is not set
> /boot/config-2.6.18-274.3.1.el5:# CONFIG_HZ_250 is not set
> /boot/config-2.6.18-274.3.1.el5:CONFIG_HZ_1000=y
> /boot/config-2.6.18-274.3.1.el5:CONFIG_HZ=1000
> /boot/config-2.6.18-274.7.1.el5:# CONFIG_HZ_100 is not set
> /boot/config-2.6.18-274.7.1.el5:# CONFIG_HZ_250 is not set
> /boot/config-2.6.18-274.7.1.el5:CONFIG_HZ_1000=y
> /boot/config-2.6.18-274.7.1.el5:CONFIG_HZ=1000****
>
>
> Thoughts as to why AWS results are so different from XenServer?  Other
> than not knowing who else is on the AWS box?
>
> Thanks,
>   Mike
>
>
> ****
>
> On Wed, Nov 16, 2011 at 11:56 AM, Michael Picher <mpicher at gmail.com>
> wrote:****
>
> m1.large
>
> I have a c1.xlarge queued up and ready to test...****
>
> ** **
>
> On Wed, Nov 16, 2011 at 11:52 AM, Chris Chen <chris.chen2004 at gmail.com>
> wrote:****
>
> Just a simple question, what kind of AWS instance are you running your
> FreeSWITCH?****
>
> It makes huge difference.****
>
> Thanks,****
>
> Chris****
>
> On Wed, Nov 16, 2011 at 10:43 AM, Michael Picher <mpicher at gmail.com>
> wrote:****
>
> Hi guys,
>
> Trying to get to the bottom of some conference bridge issues I'm having
> with running the system in AWS.
>
> We're hearing a bunch of snap-crackle-pops in conference bridges and when
> I tcpdum on the server itself I see them in the RTP and see RTP timestamp
> problems.
>
> I've run the following:
>
>
> timer_test****
>
> freeswitch at 127.0.0.1@internal> timer_test 120 10****
>
> Avg: 120.004ms Total Time: 1200.315ms****
>
> ** **
>
> 2011-11-16 10:25:56.121131 [CONSOLE] mod_commands.c:461 Timer Test:
> samplecount after init: 1
> freeswitch at 127.0.0.1@internal> 2011-11-16 10:25:56.219163 [CONSOLE]
> mod_commands.c:466 Timer Test: samplecount after first step: 2
> 2011-11-16 10:25:56.339195 [CONSOLE] mod_commands.c:475 Timer Test: 1
> sleep 120 120006
> 2011-11-16 10:25:56.459259 [CONSOLE] mod_commands.c:475 Timer Test: 2
> sleep 120 120040
> 2011-11-16 10:25:56.579259 [CONSOLE] mod_commands.c:475 Timer Test: 3
> sleep 120 119976
> 2011-11-16 10:25:56.699291 [CONSOLE] mod_commands.c:475 Timer Test: 4
> sleep 120 120007
> 2011-11-16 10:25:56.819318 [CONSOLE] mod_commands.c:475 Timer Test: 5
> sleep 120 120001
> 2011-11-16 10:25:56.939375 [CONSOLE] mod_commands.c:475 Timer Test: 6
> sleep 120 120031
> 2011-11-16 10:25:57.059397 [CONSOLE] mod_commands.c:475 Timer Test: 7
> sleep 120 119996
> 2011-11-16 10:25:57.179422 [CONSOLE] mod_commands.c:475 Timer Test: 8
> sleep 120 119994
> 2011-11-16 10:25:57.299461 [CONSOLE] mod_commands.c:475 Timer Test: 9
> sleep 120 120005
> 2011-11-16 10:25:57.419478 [CONSOLE] mod_commands.c:475 Timer Test: 10
> sleep 120 119991****
>
>
> test_time****
>
> freeswitch at 127.0.0.1@internal> time_test 600 10****
>
>
> test 1 sleep 600 1592
> test 2 sleep 600 986
> test 3 sleep 600 1018
> test 4 sleep 600 980
> test 5 sleep 600 1005
> test 6 sleep 600 1000
> test 7 sleep 600 972
> test 8 sleep 600 990
> test 9 sleep 600 1006
> test 10 sleep 600 994
> avg 1054****
>
>
> For kernel:****
>
> [root at openuc bin]# uname -r
>
> 2.6.21.7-2.fc8xen****
>
>
> CONFIG_HZ:****
>
> [root at openuc bin]# grep CONFIG_HZ /boot/config-*
>
> /boot/config-2.6.16.33-xenU-x86_64:CONFIG_HZ_100=y
> /boot/config-2.6.16.33-xenU-x86_64:# CONFIG_HZ_250 is not set
> /boot/config-2.6.16.33-xenU-x86_64:# CONFIG_HZ_1000 is not set
> /boot/config-2.6.16.33-xenU-x86_64:CONFIG_HZ=100
> /boot/config-2.6.18-164.15.1.el5.centos.plus:# CONFIG_HZ_100 is not set
> /boot/config-2.6.18-164.15.1.el5.centos.plus:# CONFIG_HZ_250 is not set
> /boot/config-2.6.18-164.15.1.el5.centos.plus:CONFIG_HZ_1000=y
> /boot/config-2.6.18-164.15.1.el5.centos.plus:CONFIG_HZ=1000
> /boot/config-2.6.21-2952.fc8xen:# CONFIG_HZ_100 is not set
> /boot/config-2.6.21-2952.fc8xen:# CONFIG_HZ_250 is not set
> /boot/config-2.6.21-2952.fc8xen:# CONFIG_HZ_300 is not set
> /boot/config-2.6.21-2952.fc8xen:CONFIG_HZ_1000=y
> /boot/config-2.6.21-2952.fc8xen:CONFIG_HZ=1000****
>
> are the xenU kernel settings screwing me here?
>
> Thanks,
>   Mike
>
>
> --
> There are 10 kinds of people in this world, those who understand binary
> and those who don't.
>
> mpicher at gmail.com
> blog: http://www.sipxecs.info
> call: sip:mpicher at sipxecs.info****
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
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> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org****
>
> ** **
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org****
>
>
>
>
> --
> There are 10 kinds of people in this world, those who understand binary
> and those who don't.
>
> mpicher at gmail.com
> blog: http://www.sipxecs.info
> call: sip:mpicher at sipxecs.info****
>
>
>
>
> --
> There are 10 kinds of people in this world, those who understand binary
> and those who don't.
>
> mpicher at gmail.com
> blog: http://www.sipxecs.info
> call: sip:mpicher at sipxecs.info****
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>

-- 
There are 10 kinds of people in this world, those who understand binary and
those who don't.

mpicher at gmail.com
blog: http://www.sipxecs.info
call: sip:mpicher at sipxecs.info
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