Subject: Re: CVS commit: src/sys/kern
To: None <perry@piermont.com>
From: Izumi Tsutsui <tsutsui@ceres.dti.ne.jp>
List: source-changes
Date: 08/06/2006 14:00:56
perry@piermont.com wrote:
> I was under the impression that for some counters with fixed
> frequency, like the ACPI time register, that the frequency was
> determined by specification. Am I mistaken on that?
Usually crytal oscillators have 10~200 ppm tolerance
(including temperature dependency), so lower digits
(under ~100kHz on 1GHz CPU) are not so significant.
I'm just afraid such not-so-meaningful digits might confuse
some users.
---
Izumi Tsutsui