cvs commit: src/sys/kern subr_param.c
rwatson at freebsd.org
Sun Nov 7 09:54:57 PST 2004
On Sat, 6 Nov 2004, Kris Kennaway wrote:
> On Sat, Nov 06, 2004 at 03:50:06PM -0800, Nate Lawson wrote:
> > I was traveling out of the country so I didn't get a chance to comment.
> > The two caveats I'm aware of is a slight loss in processes that are
> > CPU bound and an audio hum from ACPI CPU idling. The latter is rather
> > interesting actually. At hz=100, it's just a quiet low buzz but at
> > 1000, it is readily audible on many laptops and annoying. Windows uses
> > hz=1000 too and has the same problem. I believe it's related to the
> > capacitors and other devices charging/discharging when clocks are stopped.
> Can we play music by modulating the value of hz? :)
Robert N M Watson FreeBSD Core Team, TrustedBSD Projects
robert at fledge.watson.org Principal Research Scientist, McAfee Research
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