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

[randy_dunlap <rdunlap@xenotime.net>]

On Sat, 09 Jul 2005 15:16:01 -0400 Lee Revell wrote:

| 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?

indeed, why should everyone have to have 1000 timer interrupts per second?

---
~Randy
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/