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SubjectRe: Increasing HZ (patch for HZ > 1000)
> 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 guess a tickless kernel might be what you actually want. See e.g.

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