Re: Interrupt frequency

jdebert <[email protected]> Mon, 30 Aug 2004 13:49:34 -0700
Newsgroups gmane.linux.redhat.devel
Message-ID <[email protected]>
Sahan Sanjeewa wrote:
> Hi,
> 
> Can somebody tell me the usage (or the meaning) of the constant HZ in
> /usr/src/linux-2.4/include/asm/param.h. Does it relate to the interrupt
> frequency ?
> 

The HZ constant started out as a locale-dependent variable, and could be 
either 50 or 60. The purpose and history of this is in a kernel howto 
somewhere. Perhaps in the kernel-developer's howto.

It does relate to some critical timing, if I recall correctly.

It's been a long time since I read the kernel how-to's (since 0.99?) and 
they could explain much better than I ever could.


=-=