cynchronised sleep capbilty..

[Julian Elischer]

On Thu, 3 Feb 2005, Doug Rabson wrote:

> On Wednesday 02 February 2005 17:44, Julian Elischer wrote:
> > very clever!
> >
> > however it doesn't phaselock to teh time and still drifts.
> > I need to trigger on (for example) 10 second boundaries across 50
> > synchronised machines..
> > (so thatthe machines agree about the sampling period.)
>
> How about a cron job which writes characters into a fifo every ten
> secconds. The script can wait for the next ten second mark by reading a
> single char from the other end of the fifo.

how does a cron job run evey 10 seconds?
also this woudl seem something that is a bit beyond
a simple shell script in terms of trouble you would go to.



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