[Asterisk-Dev] High resolution timers using POSIX clocks
instead of zaptel
critch at basesys.com
Tue Jun 7 09:40:47 MST 2005
On Tue, 2005-06-07 at 12:16 -0400, Steve Kann wrote:
> Gilad Ben-Yossef wrote:
> > Derek Smithies wrote:
> >> Does anyone have some realworld experience on a recent machine &
> >> software timers to prove they are still a bad idea?
> > Fact of life - on a 2.4 Linux kernel for x86 or PPC the timer
> > resolution is 10ms (look for the HZ macro in
> > /usr/src/linux/include/asm/param.h) That's simply not enough.
> Not enough for what? What do you need to do that 10ms resultion isn't
I'm betting that since 10ms is equal to 80 samples, that you would see
that it is too slow for the current needs. To slow down to a 10ms
resolution would might require 2 sets of timer routines, one able to
handle the zapata resolution and then the software timer one.
Steven <critch at basesys.com>
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