I can't answer you completely ( this question for kernel maintainers ) :(
But as I know this value used for IRQ (see arch/i386/kernel/irq.c)
different kernel timers (arch/i386/kernel/time.c) for SMP (multiprocessor)
in APIC functions ASPI functions almost in all drivers even in PCI bus
and ATM subsystem and many many other

I have no idea about after-effects of change HZ !
I don't know about possibility to change this value only for traffic control functions 
!

I think change this value for Ix86 architecture not so simple !

If somebody have idea about this, share it with me !

23.06.2002 14:39:59, bert hubert <[EMAIL PROTECTED]> wrote:
>Can you elaborate? I know of only the 'top' problem but most other things
>work well.
>If you raise HZ you will get more precise shaping and less bursty traffic.
>Regards,
>bert
>http://www.PowerDNS.com          Versatile DNS Software & Services
>http://www.tk                              the dot in .tk
>http://lartc.org           Linux Advanced Routing & Traffic Control HOWTO
-----------------------------------
mailto:[EMAIL PROTECTED]
BR
Alexey Talikov
FORTEK
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