RE: Increasing HZ (patch for HZ > 1000)

Grover, Andrew
2003-12-11T19:22:49Z

> From: linux-kernel-owner@vger.kernel.org
> [mailto:linux-kernel-owner@vger.kernel.org] On Behalf Of
> Jean-Marc Valin
> > Why would you want to *increase* HZ? I'd say 1000 is
> already too high
> > personally, but I'm curious what you'd want to do with it? Embedded
> > real-time stuff?
>
> Actually, my reasons may sound a little strange, but basically I'd be
> fine with HZ=1000 if it wasn't for that annoying ~1 kHz sound when the
> CPU is idle (probably bad capacitors). By increasing HZ to 10 kHz, the
> sound is at a frequency where the ear is much less sensitive.
> Anyway, I
> thought some people might be interested in high HZ for other (more
> fundamental) reasons, so I posted the patch.

I'd advocate lower HZ. Say, oh I dunno...100? This is better for power
management and also should make the sound go away.

Hmm, I wonder if HZ=10 would break anything :)

Regards -- Andy