Re: finding out the value of HZ from userspace

[Mark Gross]

On Monday 15 March 2004 00:17, Jamie Lokier wrote:
> Horst von Brand wrote:
> > What for? It should be invisible to userspace...
>
> It's not invisible.  select/poll/epoll/setitimer round their time
> argument according to HZ, and programs which do smooth (i.e. low
> _jitter_) animation of the kind where the eye is sensitive to the
> jitter need to track it and correct for it.
>

Wouldn't it be better to just use high res timers and associated posix interfaces or low jitter applications?

--mgross

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