Re: port-amd64/46094: cpu0 timer sometimes far off

[Jukka Ruohonen <jruohonen%iki.fi@localhost>]

The following reply was made to PR port-amd64/46094; it has been noted by GNATS.

From: Jukka Ruohonen <jruohonen%iki.fi@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: port-amd64-maintainer%NetBSD.org@localhost, 
gnats-admin%NetBSD.org@localhost,
        netbsd-bugs%NetBSD.org@localhost
Subject: Re: port-amd64/46094: cpu0 timer sometimes far off
Date: Sat, 25 Feb 2012 19:20:55 +0200

 On Sat, Feb 25, 2012 at 08:15:00AM +0000, martin%NetBSD.org@localhost wrote:
 > I have no idea, what makes the differences, it seems to vary from boot to
 > boot.  The bios has c1e (sp?) enabled, but disabling it did not seem to
 > change things at a quick glance.
 >
 > [...]
 >
 > acpicpu0: C1: HLT, lat   0 us, pow     0 mW
 > acpicpu0: C2: I/O, lat  75 us, pow     1 mW, bus master check
 
 Can you check (via vmstat) whether it goes to the low-power C2 state? 
 (It should not until C-states are supported.)
 
 - Jukka.