[ntp:hackers] odd behaviour (one more time)

Reg Clemens reg at dwf.com
Fri Oct 3 06:12:55 UTC 2008

> > Another nit with Linux is that some configurations come up with the 
> > timer frequency of 1000 Hz rather that the design parameter of 100 Hz. 
> > It is possible, and indeed is the case for Ultrix (256 Hz) and OSF/1 
> > (1024 Hz) to change the loop parameters to match any frequency, but 
> > Linux hasn't done that.
> > 
> Thats probably it.
> The kernel in question was built with a 1000 Hz Clock.

Could you tell me (actually, point me at a previous report) how you compute
the loop parameters for a given frequency, and which ones need to be changed.

Is this a straightforward calculation, or do you iterate with the simulator?

                                        reg at dwf.com

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