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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Fraser, thanks for tips in compiling kernel.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I was able to set up a 1000hz ec2 instance ... and run some comparative tests using the same starting 10.04 LTS ami.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Here are the results of timing tests.. Not sure how to interpret… Having users test audio right now in voice conferences to see if they notice any difference.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Looked in wiki… I’m still not clear on what to look for.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Regards,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Stephen<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><u><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>100hz kernel<o:p></o:p></span></u></b></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><u><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>time_test 600 10<o:p></o:p></span></u></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 1 sleep 600 8847<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 2 sleep 600 9969<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 3 sleep 600 10006<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 4 sleep 600 9986<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 5 sleep 600 10003<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 6 sleep 600 9977<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 7 sleep 600 10117<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 8 sleep 600 9872<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 9 sleep 600 10014<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 10 sleep 600 10124<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><u><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>timer_test 120 10<o:p></o:p></span></u></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 14:53:51.142568 [CONSOLE] mod_commands.c:329 Timer Test: 1 sleep 120 120289<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 14:53:51.263610 [CONSOLE] mod_commands.c:329 Timer Test: 2 sleep 120 120703<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 14:53:51.382587 [CONSOLE] mod_commands.c:329 Timer Test: 3 sleep 120 118952<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 14:53:51.502640 [CONSOLE] mod_commands.c:329 Timer Test: 4 sleep 120 120048<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 14:53:51.622851 [CONSOLE] mod_commands.c:329 Timer Test: 5 sleep 120 120213<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 14:53:51.742593 [CONSOLE] mod_commands.c:329 Timer Test: 6 sleep 120 119681<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 14:53:51.862583 [CONSOLE] mod_commands.c:329 Timer Test: 7 sleep 120 119963<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 14:53:51.982568 [CONSOLE] mod_commands.c:329 Timer Test: 8 sleep 120 119975<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 14:53:52.133931 [CONSOLE] mod_commands.c:329 Timer Test: 9 sleep 120 151338<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 14:53:52.232591 [CONSOLE] mod_commands.c:329 Timer Test: 10 sleep 120 98753<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><u><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>1000hz kernel<o:p></o:p></span></u></b></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><u><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>time_test 600 10<o:p></o:p></span></u></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 1 sleep 600 1591<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 2 sleep 600 1009<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 3 sleep 600 971<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 4 sleep 600 1114<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 5 sleep 600 888<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 6 sleep 600 996<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 7 sleep 600 998<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 8 sleep 600 988<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 9 sleep 600 994<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>test 10 sleep 600 996<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>avg 1054<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><u><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>timer_test 120 10</span></u><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 19:55:27.198564 [CONSOLE] mod_commands.c:562 Timer Test: 1 sleep 120 119956<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 19:55:27.318559 [CONSOLE] mod_commands.c:562 Timer Test: 2 sleep 120 119994<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 19:55:27.438559 [CONSOLE] mod_commands.c:562 Timer Test: 3 sleep 120 119939<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 19:55:27.558559 [CONSOLE] mod_commands.c:562 Timer Test: 4 sleep 120 119965<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 19:55:27.678559 [CONSOLE] mod_commands.c:562 Timer Test: 5 sleep 120 119967<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 19:55:27.798563 [CONSOLE] mod_commands.c:562 Timer Test: 6 sleep 120 119977<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 19:55:27.918559 [CONSOLE] mod_commands.c:562 Timer Test: 7 sleep 120 120000<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 19:55:28.038559 [CONSOLE] mod_commands.c:562 Timer Test: 8 sleep 120 119936<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 19:55:28.158559 [CONSOLE] mod_commands.c:562 Timer Test: 9 sleep 120 119973<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>2011-11-24 19:55:28.278558 [CONSOLE] mod_commands.c:562 Timer Test: 10 sleep 120 119968<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> freeswitch-users-bounces@lists.freeswitch.org [mailto:freeswitch-users-bounces@lists.freeswitch.org] <b>On Behalf Of </b>Fraser Redmond<br><b>Sent:</b> Saturday, November 19, 2011 7:43 PM<br><b>To:</b> FreeSWITCH Users Help<br><b>Subject:</b> Re: [Freeswitch-users] Timing issues in AWS?<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Hi Stephen,<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>I spent most of last week working out how to upgrade the kernel timer from 100HZ to 1000HZ on ubuntu on AWS. I documented the steps I took here:<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><a href="http://wiki.freeswitch.org/wiki/Amazon_EC2#Updating_Kernel_Timer_to_1000HZ">http://wiki.freeswitch.org/wiki/Amazon_EC2#Updating_Kernel_Timer_to_1000HZ</a><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Making that change gave us a noticeable jump in call quality.<o:p></o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'><br clear=all>Cheers,<br>Fraser<br><br><br><br><o:p></o:p></p><div><p class=MsoNormal>On 17 November 2011 08:49, Stephen Dame <<a href="mailto:sdame@207me.com">sdame@207me.com</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>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 </span><span style='font-size:11.0pt;font-family:Wingdings;color:#1F497D'>J</span><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> We also tie in skype and DID direct to improve latency for some clients. But expectations are set so we meet them.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>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. </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>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.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The tests below are interesting but above my paygrade to understand what they mean? </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>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.</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Regards,</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Stephen</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> <a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a> [mailto:<a href="mailto:freeswitch-users-bounces@lists.freeswitch.org" target="_blank">freeswitch-users-bounces@lists.freeswitch.org</a>] <b>On Behalf Of </b>Michael Picher<br><b>Sent:</b> Thursday, November 17, 2011 8:03 AM<br><b>To:</b> FreeSWITCH Users Help<br><b>Subject:</b> Re: [Freeswitch-users] Timing issues in AWS?</span><o:p></o:p></p></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>Not having anywhere near the same trouble in a Xen Server in my lab...<br><br>Although test_time is skewed 180 degrees from what it was in AWS....<br><br>freeswitch@internal> timer_test 120 10<o:p></o:p></p><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Avg: 119.945ms Total Time: 1199.727ms<br><br>2011-11-17 07:57:22.721105 [CONSOLE] mod_commands.c:461 Timer Test: samplecount after init: 1<br>2011-11-17 07:57:22.751026 [CONSOLE] mod_commands.c:466 Timer Test: samplecount after first step: 2<br>2011-11-17 07:57:22.872047 [CONSOLE] mod_commands.c:475 Timer Test: 1 sleep 120 120993<br>2011-11-17 07:57:22.990983 [CONSOLE] mod_commands.c:475 Timer Test: 2 sleep 120 118914<br>2011-11-17 07:57:23.110953 [CONSOLE] mod_commands.c:475 Timer Test: 3 sleep 120 119919<br>2011-11-17 07:57:23.230928 [CONSOLE] mod_commands.c:475 Timer Test: 4 sleep 120 120032<br>2011-11-17 07:57:23.350831 [CONSOLE] mod_commands.c:475 Timer Test: 5 sleep 120 119802<br>2011-11-17 07:57:23.470886 [CONSOLE] mod_commands.c:475 Timer Test: 6 sleep 120 119999<br>2011-11-17 07:57:23.590873 [CONSOLE] mod_commands.c:475 Timer Test: 7 sleep 120 119975<br>2011-11-17 07:57:23.710893 [CONSOLE] mod_commands.c:475 Timer Test: 8 sleep 120 120003<br>2011-11-17 07:57:23.830774 [CONSOLE] mod_commands.c:475 Timer Test: 9 sleep 120 119849<br>2011-11-17 07:57:23.950808 [CONSOLE] mod_commands.c:475 Timer Test: 10 sleep 120 119971<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br>freeswitch@internal> time_test 600 10<o:p></o:p></p><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>test 1 sleep 600 1<br>test 2 sleep 600 1<br>test 3 sleep 600 0<br>test 4 sleep 600 1<br>test 5 sleep 600 0<br>test 6 sleep 600 1<br>test 7 sleep 600 1<br>test 8 sleep 600 0<br>test 9 sleep 600 0<br>test 10 sleep 600 1<br>avg 0<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br>[root@openuc bin]# uname -r<o:p></o:p></p><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>2.6.18-274.7.1.el5<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br>[root@openuc bin]# grep CONFIG_HZ /boot/config-*<o:p></o:p></p><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>/boot/config-2.6.18-238.12.1.el5:# CONFIG_HZ_100 is not set<br>/boot/config-2.6.18-238.12.1.el5:# CONFIG_HZ_250 is not set<br>/boot/config-2.6.18-238.12.1.el5:CONFIG_HZ_1000=y<br>/boot/config-2.6.18-238.12.1.el5:CONFIG_HZ=1000<br>/boot/config-2.6.18-238.19.1.el5:# CONFIG_HZ_100 is not set<br>/boot/config-2.6.18-238.19.1.el5:# CONFIG_HZ_250 is not set<br>/boot/config-2.6.18-238.19.1.el5:CONFIG_HZ_1000=y<br>/boot/config-2.6.18-238.19.1.el5:CONFIG_HZ=1000<br>/boot/config-2.6.18-238.9.1.el5:# CONFIG_HZ_100 is not set<br>/boot/config-2.6.18-238.9.1.el5:# CONFIG_HZ_250 is not set<br>/boot/config-2.6.18-238.9.1.el5:CONFIG_HZ_1000=y<br>/boot/config-2.6.18-238.9.1.el5:CONFIG_HZ=1000<br>/boot/config-2.6.18-274.3.1.el5:# CONFIG_HZ_100 is not set<br>/boot/config-2.6.18-274.3.1.el5:# CONFIG_HZ_250 is not set<br>/boot/config-2.6.18-274.3.1.el5:CONFIG_HZ_1000=y<br>/boot/config-2.6.18-274.3.1.el5:CONFIG_HZ=1000<br>/boot/config-2.6.18-274.7.1.el5:# CONFIG_HZ_100 is not set<br>/boot/config-2.6.18-274.7.1.el5:# CONFIG_HZ_250 is not set<br>/boot/config-2.6.18-274.7.1.el5:CONFIG_HZ_1000=y<br>/boot/config-2.6.18-274.7.1.el5:CONFIG_HZ=1000<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><br>Thoughts as to why AWS results are so different from XenServer? Other than not knowing who else is on the AWS box?<br><br>Thanks,<br> Mike<br><br><o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Wed, Nov 16, 2011 at 11:56 AM, Michael Picher <<a href="mailto:mpicher@gmail.com" target="_blank">mpicher@gmail.com</a>> wrote:<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>m1.large<br><br>I have a c1.xlarge queued up and ready to test...<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'> <o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Wed, Nov 16, 2011 at 11:52 AM, Chris Chen <<a href="mailto:chris.chen2004@gmail.com" target="_blank">chris.chen2004@gmail.com</a>> wrote:<o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Just a simple question, what kind of AWS instance are you running your FreeSWITCH?<o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>It makes huge difference.<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Thanks,<o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>Chris<o:p></o:p></p><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>On Wed, Nov 16, 2011 at 10:43 AM, Michael Picher <<a href="mailto:mpicher@gmail.com" target="_blank">mpicher@gmail.com</a>> wrote:<o:p></o:p></p></div></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-top:5.0pt;margin-right:0in;margin-bottom:5.0pt'><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Hi guys,<br><br>Trying to get to the bottom of some conference bridge issues I'm having with running the system in AWS.<br><br>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.<br><br>I've run the following:<br><br><br>timer_test<o:p></o:p></p><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>freeswitch@127.0.0.1@internal> timer_test 120 10<o:p></o:p></p></div><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>Avg: 120.004ms Total Time: 1200.315ms<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>2011-11-16 10:25:56.121131 [CONSOLE] mod_commands.c:461 Timer Test: samplecount after init: 1<br>freeswitch@127.0.0.1@internal> 2011-11-16 10:25:56.219163 [CONSOLE] mod_commands.c:466 Timer Test: samplecount after first step: 2<br>2011-11-16 10:25:56.339195 [CONSOLE] mod_commands.c:475 Timer Test: 1 sleep 120 120006<br>2011-11-16 10:25:56.459259 [CONSOLE] mod_commands.c:475 Timer Test: 2 sleep 120 120040<br>2011-11-16 10:25:56.579259 [CONSOLE] mod_commands.c:475 Timer Test: 3 sleep 120 119976<br>2011-11-16 10:25:56.699291 [CONSOLE] mod_commands.c:475 Timer Test: 4 sleep 120 120007<br>2011-11-16 10:25:56.819318 [CONSOLE] mod_commands.c:475 Timer Test: 5 sleep 120 120001<br>2011-11-16 10:25:56.939375 [CONSOLE] mod_commands.c:475 Timer Test: 6 sleep 120 120031<br>2011-11-16 10:25:57.059397 [CONSOLE] mod_commands.c:475 Timer Test: 7 sleep 120 119996<br>2011-11-16 10:25:57.179422 [CONSOLE] mod_commands.c:475 Timer Test: 8 sleep 120 119994<br>2011-11-16 10:25:57.299461 [CONSOLE] mod_commands.c:475 Timer Test: 9 sleep 120 120005<br>2011-11-16 10:25:57.419478 [CONSOLE] mod_commands.c:475 Timer Test: 10 sleep 120 119991<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br>test_time<o:p></o:p></p><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>freeswitch@127.0.0.1@internal> time_test 600 10<o:p></o:p></p></div><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br>test 1 sleep 600 1592<br>test 2 sleep 600 986<br>test 3 sleep 600 1018<br>test 4 sleep 600 980<br>test 5 sleep 600 1005<br>test 6 sleep 600 1000<br>test 7 sleep 600 972<br>test 8 sleep 600 990<br>test 9 sleep 600 1006<br>test 10 sleep 600 994<br>avg 1054<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br>For kernel:<o:p></o:p></p><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'>[root@openuc bin]# uname -r<br><br>2.6.21.7-2.fc8xen<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br>CONFIG_HZ:<o:p></o:p></p><div style='margin-left:30.0pt'><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>[root@openuc bin]# grep CONFIG_HZ /boot/config-*<br><br>/boot/config-2.6.16.33-xenU-x86_64:CONFIG_HZ_100=y<br>/boot/config-2.6.16.33-xenU-x86_64:# CONFIG_HZ_250 is not set<br>/boot/config-2.6.16.33-xenU-x86_64:# CONFIG_HZ_1000 is not set<br>/boot/config-2.6.16.33-xenU-x86_64:CONFIG_HZ=100<br>/boot/config-2.6.18-164.15.1.el5.centos.plus:# CONFIG_HZ_100 is not set<br>/boot/config-2.6.18-164.15.1.el5.centos.plus:# CONFIG_HZ_250 is not set<br>/boot/config-2.6.18-164.15.1.el5.centos.plus:CONFIG_HZ_1000=y<br>/boot/config-2.6.18-164.15.1.el5.centos.plus:CONFIG_HZ=1000<br>/boot/config-2.6.21-2952.fc8xen:# CONFIG_HZ_100 is not set<br>/boot/config-2.6.21-2952.fc8xen:# CONFIG_HZ_250 is not set<br>/boot/config-2.6.21-2952.fc8xen:# CONFIG_HZ_300 is not set<br>/boot/config-2.6.21-2952.fc8xen:CONFIG_HZ_1000=y<br>/boot/config-2.6.21-2952.fc8xen:CONFIG_HZ=1000<o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>are the xenU kernel settings screwing me here?<br><br>Thanks,<br> Mike<span style='color:#888888'><br clear=all><br clear=all><br>-- <br>There are 10 kinds of people in this world, those who understand binary and those who don't.<br><br><a href="mailto:mpicher@gmail.com" target="_blank">mpicher@gmail.com</a><br>blog: <a href="http://www.sipxecs.info" target="_blank">http://www.sipxecs.info</a><br>call: <a href="mailto:sip%3Ampicher@sipxecs.info" target="_blank">sip:mpicher@sipxecs.info</a></span><o:p></o:p></p></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'>_________________________________________________________________________<br>Professional FreeSWITCH Consulting Services:<br><a href="mailto:consulting@freeswitch.org" target="_blank">consulting@freeswitch.org</a><br><a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br><br>FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br><a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a><br><br>Official FreeSWITCH Sites<br><a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br><a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a><br><a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br><br>FreeSWITCH-users mailing list<br><a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br><a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br><a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><o:p></o:p></p></blockquote></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:12.0pt'><br>_________________________________________________________________________<br>Professional FreeSWITCH Consulting Services:<br><a href="mailto:consulting@freeswitch.org" target="_blank">consulting@freeswitch.org</a><br><a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br><br>FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br><a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a><br><br>Official FreeSWITCH Sites<br><a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br><a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a><br><a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br><br>FreeSWITCH-users mailing list<br><a href="mailto:FreeSWITCH-users@lists.freeswitch.org" target="_blank">FreeSWITCH-users@lists.freeswitch.org</a><br><a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br><a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br><br clear=all><br>-- <br>There are 10 kinds of people in this world, those who understand binary and those who don't.<br><br><a href="mailto:mpicher@gmail.com" target="_blank">mpicher@gmail.com</a><br>blog: <a href="http://www.sipxecs.info" target="_blank">http://www.sipxecs.info</a><br>call: <a href="mailto:sip%3Ampicher@sipxecs.info" target="_blank">sip:mpicher@sipxecs.info</a><o:p></o:p></p></div></div></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><br><br clear=all><br>-- <br>There are 10 kinds of people in this world, those who understand binary and those who don't.<br><br><a href="mailto:mpicher@gmail.com" target="_blank">mpicher@gmail.com</a><br>blog: <a href="http://www.sipxecs.info" target="_blank">http://www.sipxecs.info</a><br>call: <a href="mailto:sip%3Ampicher@sipxecs.info" target="_blank">sip:mpicher@sipxecs.info</a><o:p></o:p></p></div></div></div></div><p class=MsoNormal style='margin-bottom:12.0pt'><br>_________________________________________________________________________<br>Professional FreeSWITCH Consulting Services:<br><a href="mailto:consulting@freeswitch.org">consulting@freeswitch.org</a><br><a href="http://www.freeswitchsolutions.com" target="_blank">http://www.freeswitchsolutions.com</a><br><br>FreeSWITCH-powered IP PBX: The CudaTel Communication Server<br><a href="http://www.cudatel.com" target="_blank">http://www.cudatel.com</a><br><br>Official FreeSWITCH Sites<br><a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><br><a href="http://wiki.freeswitch.org" target="_blank">http://wiki.freeswitch.org</a><br><a href="http://www.cluecon.com" target="_blank">http://www.cluecon.com</a><br><br>FreeSWITCH-users mailing list<br><a href="mailto:FreeSWITCH-users@lists.freeswitch.org">FreeSWITCH-users@lists.freeswitch.org</a><br><a href="http://lists.freeswitch.org/mailman/listinfo/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>UNSUBSCRIBE:<a href="http://lists.freeswitch.org/mailman/options/freeswitch-users" target="_blank">http://lists.freeswitch.org/mailman/options/freeswitch-users</a><br><a href="http://www.freeswitch.org" target="_blank">http://www.freeswitch.org</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></div></body></html>