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SubjectRe: 2.6.18 w/ GPS time source: worse performance
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On Wed, 2006-10-18 at 17:46 -0400, Lee Revell wrote:
> [added John Stultz to cc]
>
> On Wed, 2006-10-18 at 15:57 -0400, Valdis.Kletnieks@vt.edu wrote:
> > On Wed, 18 Oct 2006 18:44:59 +0200, Udo van den Heuvel said:
> > >
> > > It is stuff that is visible by watching ntpq -pn output, by letting mrtg
> > > graph stuff, etc. Watch the offset and jitter collumns.
> > > Check /usr/sbin/ntpdc -c kerninfo output. Graph that stuff.
> >
> > So... you've presumably done that while identifying there is an issue.
> > Please share the results. Have you tried booting back into a 2.6.17
> > or so and seen offset/jitter improve? etc etc etc.

Udo:
Are you running the linuxpps patches, or is this vanilla 2.6.18 without
any additional patches? Mind sending your dmesg and some "ntpdc -c
kerninfo" output? Any of those graphs you mention above would be great
as well.

thanks
-john


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