1000 Hz is recommended if you use lot of meetme channels ( and maybe iax trunking ? ) without a hardware timer .<br><br><div><span class="gmail_quote">On 08/02/07, <b class="gmail_sendername">Gordon Henderson</b> <<a href="mailto:gordon+asterisk@drogon.net">
gordon+asterisk@drogon.net</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">On Wed, 7 Feb 2007, Mark Coccimiglio wrote:<br>
<br>> Ok here is a real geek question,<br>><br>> I building my own linux kernel for my asterisk system and came across the<br>> kernel setting for the timer frequency. I have one of 3 hardcode choices<br>> 100Hz, 250 Hz and 1000Hz. From what I understand the default Freq was
<br>> changed from 100Hz in kernel 2.4 to 1000Hz (1KHz) in kernel 2.6. Timing is a<br>> BIG issue in asterisk with all the TDM and zap channel stuff. My guess is to<br>> go with the lower 100 or 250 Hz option but that is only a guess. The 1KHz
<br>> sounds like it will conflict with the Zap 1khz timer (or am I wrong about<br>> that). Does anyone know what the prefered settings are for Trixbox or<br>> AsteriskNOW (or the asterisk code forks e.g. OpenPBX)? Please let me know
<br>> what your experience has been.<br><br>I always compile custom kernels and have been using 1KHz in all my systems<br>which are for anything vaguely interactive.<br><br>Most of my asterisk systems are 1GHz processors but I have a small handful
<br>which are 533MHz and all are working just fine.<br><br>You're not using a recently kernel then ;-) 2.6.20 offers 300Hz too<br>(supposedly good for video applications)<br><br>Gordon<br>_______________________________________________
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