HZ=1000 ?

John Pettitt jpp at cloudview.com
Mon Apr 4 16:09:10 PDT 2005



cpghost at cordula.ws wrote:

>
>Interestingly, HZ=100 has remained constant for decades (!), despite
>CPUs getting faster all the time. This is an excellent value for most
>typical usage patterns. Cranking it up should only be required for
>special cases. Anyway, the HZ knob is there. Experiment with it until
>you get optimal performance.
>
>  
>
>
>  
>
In the dim and distant past (like 1983) some systems used HZ=50 or HZ=60
depending on where in the world they were.   I used an MP/M based box
that took it's clock tick from the power line (no good RTC hardware
available but the power company keeps pretty good time).

John


More information about the freebsd-questions mailing list