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SubjectRe: How to know HZ from userspace?
At 5:07 PM -0700 2001-05-30, H. Peter Anvin wrote:
> > If you now want to set those values from a userspace program / script in
>> a portable manner, you need to be able to find out of HZ of the currently
>> running kernel.
>>
>
>Yes, but that's because the interfaces are broken. The decision has
>been that these values should be exported using the default HZ for the
>architecture, and that it is the kernel's responsibility to scale them
>when HZ != USER_HZ. I don't know if any work has been done in this
>area.

FWIW (perhaps not much in this context), the POSIX way is sysconf(_SC_CLK_TCK)

POSIX sysconf is pretty useful for this kind of thing (not just HZ, either).
--
/Jonathan Lundell.
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