<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Folks;<div><br></div><div>Bear in mind that the frequency is (X)Hz * (num cores), hence saying 100Hz on a dual core winds up being 200Hz.</div><div><br></div><div>My setup is 250Hz on a Dual-Core and the quality is perfect.</div><div><br></div><div>Oh, btw folks, don't attempt to do anything involving QOS (be it TBF, CBQ, HTB, or whatnot) on anything less than kernel 2.6.28.4</div><div><br></div><div>I don't know why exactly that is, but extensive testing here in the lab showed that this was entirely FUBAR until 2.6.25.7 where it got better, but not perfect until 2.6.28.4</div><div>(I may not be exact on the revisions, but close enough...)</div><div><br></div><div>There's also some options in the kernel that you must disable (not compile in) if you expect packet shaping to work.</div><div><br></div><div>If there's interest in this, e-mail me directly and I'll see if I can toss it into the FS Wiki some time this upcoming weekend.<br><div><br></div><div><br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>Best Regards,</div><div>Karl J. Vesterling</div><div><a href="mailto:kjv@ken-ton.com">kjv@ken-ton.com</a></div><div>202-461-3231 x0</div></div></div></span></div></span></div></span> </div><br><div><div>On May 9, 2009, at 2:14 AM, Jason White wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div>Pablo Hernan Saro <<a href="mailto:pablosaro@gmail.com">pablosaro@gmail.com</a>> wrote:<br><br><blockquote type="cite">IMHO, it is related with the following kernel options: CONFIG_HZ,<br></blockquote><blockquote type="cite">CONFIG_NO_HZ and CONFIG_HIGH_RES_TIMERS.<br></blockquote><blockquote type="cite">Take a look at those options in your kernel and try modifying them until get<br></blockquote><blockquote type="cite">the desired result. Google that options and you will find lots of<br></blockquote><blockquote type="cite">discussions that will clarify your mind. Here you will find a simple<br></blockquote><blockquote type="cite">explanation: <a href="http://www.smk.co.za/2007/07/21/a-tickless-kernel/">http://www.smk.co.za/2007/07/21/a-tickless-kernel/</a><br></blockquote><br>Thank you for the references. I think I'll modify my kernel parameters in the<br>grub configuration, since I am using Debian kernels at the moment. (I do know<br>how to compile my own, which I will gladly do if it becomes necessary).<br><br><br><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">http://lists.freeswitch.org/mailman/listinfo/freeswitch-users</a><br>UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users<br>http://www.freeswitch.org<br><br><br></div></blockquote></div><br></div></div></body></html>