On Fri, 2004-07-30 at 18:55, Andrew Kohlsmith wrote: > On Friday 30 July 2004 19:51, Mike Benoit wrote: > > Tuning these [PCI latencies] should allow you to give your TDM cards > > long burst lengths, and make your IDE devices very premptable... > > I would have figured you want very short burst lengths to prevent any one > device from hogging the PCI bus and delaying your VOIP data. IIRC the VOIP > traffic is very short anyway (1000 interrupts a second, 8 bit PCM data or 64 > bytes of actual VOIP data (sampled at 8000Hz, that's 8 8 bit samples every > interrupt) each way... I think.
Actually, it isn't VoIP data yet, VoIP is Voice over Internet Protocol. The 1000hz interupt is still just digitizing the audio off the PSTN link. When it comes time to read/write VoIP data, it is likely 20ms of audio, plus headers and IP encapsulation. If you are lucky, your LAN/WAN card supports DMA and is reading the packet on it's own out of memory. -- Steven Critchfield <[EMAIL PROTECTED]> _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
