> >     Iam planning to increase the hz parameter from 100 to 1000 so as to 
> > get high resolution sleep. Are there any known side effects . 
> 
> I might be missing something, but I thought the hz parameter reflected a
> real clock's rate. Do you really have a clock that can get upped to 1000 Hz?

And is your CPU fast enough to handle the extra overhead?

One of my machines at home has HZ=20 to lower the overhead.  This is
with an old, slow CPU.  Newer faster CPUs should be able to handle
a higher rate, just be aware of the overhead.

-Dave