[asterisk-users] Linux Kernel Timer Frequency and Asterisk

[Patrick]

On Wed, 2007-02-07 at 14:53 -1000, Mark Coccimiglio wrote:
> Ok here is a real geek question,
> 
> I building my own linux kernel for my asterisk system and came across 
> the kernel setting for the timer frequency.  I have one of 3 hardcode 
> choices 100Hz, 250 Hz and 1000Hz.  From what I understand the default 
> Freq was changed from 100Hz in kernel 2.4 to 1000Hz (1KHz) in kernel 
> 2.6.  Timing is a BIG issue in asterisk with all the TDM and zap channel 
> stuff.  My guess is to go with the lower 100 or 250 Hz option but that 
> is only a guess.  The 1KHz sounds like it will conflict with the Zap 
> 1khz timer (or am I wrong about that).  Does anyone know what the 
> prefered settings are for Trixbox or AsteriskNOW (or the asterisk code 
> forks e.g. OpenPBX)?  Please let me know what your experience has been.

Trixbox is based on CentOS4 which uses 1000Hz. Iirc the same goes for
FC6 with a recent kernel and the upcoming Fedora 7.

Regards,
Patrick