Re: [PATCH] i386: Selectable Frequency of the Timer Interrupt

Lee Revell
2005-07-09T19:17:03Z

On Sat, 2005-07-09 at 12:12 -0700, Andrew Morton wrote:
> Lee Revell <rlrevell@joe-job.com> wrote:
> >
> > > This is not a userspace visible thing really with few exceptions, and
> > > well people can select the one they want, right?
> >
> > Then why not leave the default at 1000?
>
> Because some machines exhibit appreciable latency in entering low power
> state via ACPI, and 1000Hz reduces their battery life. By about half,
> iirc.
>

Then the owners of such machines can use HZ=250 and leave the default
alone. Why should everyone have to bear the cost?

Lee