On Fri, Nov 10, 2006 at 03:04:46PM +0200, Anton Tinchev wrote: > Anybody sucessfully got stable 1000Hz clock without Digium harware and > kernel 2.6? > We need to consult some peoples how to clock asterisk stable with exactly > 1000 Hz without much kernel/drives patching/tweaking. > > Some test results we made so far: > > 2.6 with digium card - stable 1000 Hz.
Which card, BTW? > 2.6 with ztdummy - uses RTC and the clock is 1024, not 1000. > 2.6 with some Realtime kernel patch - provides stable 1000 Hz for some > time, but in moments stops/misses interrupts/goes away from 1000 Hz > 2.6 with ztdummy USB_UHCI - don't works, needs some tweaking. Somebody > knows good patch for it? > 2.6 with ztdynamic as primary clock sources - some issues with 2.6 > (ztdynamic not ported well to 2.6?) with the mainstream versions, somehow > patches solves it. > 2.6 with kernel clock - needs kernel recompiling and work stable with > switched off kernel Preemption. Long time tests in progress now. Why does preemption conflict with HZ=1000 ? Totally disable preemption? On what system(s)? > > 2.4 with digium card - stable 1000 Hz > 2.4 with ztdummy UHCI - stable 1000 Hz > 2.4 with ztdynamic clock source - stable 1000 Hz/Depends on network > conditions. -- Tzafrir Cohen icq#16849755 jabber:[EMAIL PROTECTED] +972-50-7952406 mailto:[EMAIL PROTECTED] http://www.xorcom.com iax:[EMAIL PROTECTED]/tzafrir _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users