In article <[EMAIL PROTECTED]>, Luigi Rizzo <[EMAIL PROTECTED]> wrote: > On Mon, May 16, 2005 at 11:06:16AM +0000, Tony Mountifield wrote: > > I've been using MeetMe via IAX with no problems on a FC1 box with the > > 2.4 kernel and zaprtc for timing. > > > > Recently I've set up a FC3 box with the 2.6 kernel, and have been using > > ztdummy for timing. Using the same IAX sources to a MeetMe conference, > > I found that there was an increasing delay between a participant speaking > > and the others hearing him. Over 10-20 minutes this crept up to several > > seconds! > > i am unclear on one thing -- if there is such a delay, a queue > somewhere must grow very long, and i wonder if this couldn't be > used as a hint that there is clearly a timing mismatch that > should be compensated.
I think what is happening is that the zaptel processing invoked by ztdummy is not happening quite often enough due to missed jiffies. Consequently I suspect the incoming IAX channels are not being serviced often enough, and are building up a backlog. Certainly, changing ztdummy to use the hardware timer in the RTC seems to fix the problem nicely. Cheers Tony -- Tony Mountifield Work: [EMAIL PROTECTED] - http://www.softins.co.uk Play: [EMAIL PROTECTED] - http://tony.mountifield.org _______________________________________________ Asterisk-Dev mailing list [email protected] http://lists.digium.com/mailman/listinfo/asterisk-dev To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-dev
