From: Jan Kiszka <jan.kiszka@domain.hid>
To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: Xenomai core <Xenomai-core@domain.hid>
Subject: Re: [Xenomai-core] Clock drift.
Date: Wed, 14 Jan 2009 14:50:51 +0100 [thread overview]
Message-ID: <496DEDBB.8000204@domain.hid> (raw)
In-Reply-To: <496DEB16.5060803@domain.hid>
Gilles Chanteperdrix wrote:
> Hi,
>
> I run clocktest on a system here, not running NTP, using
> CONFIG_GENERIC_CLOCKEVENT, with a systematic drift of 3us/s. How can
> this happen? Does it come from the error due to the multiply and shift
> used for tsc to/from ns conversions ?
What clocksource is used by Linux? Also tsc?
Jan
--
Siemens AG, Corporate Technology, CT SE 26
Corporate Competence Center Embedded Linux
next prev parent reply other threads:[~2009-01-14 13:50 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-01-14 13:39 [Xenomai-core] Clock drift Gilles Chanteperdrix
2009-01-14 13:50 ` Jan Kiszka [this message]
2009-01-14 13:55 ` Gilles Chanteperdrix
2009-01-14 13:53 ` Philippe Gerum
2009-01-14 14:00 ` Gilles Chanteperdrix
2009-01-14 14:06 ` Philippe Gerum
2009-01-15 13:15 ` Gilles Chanteperdrix
2009-01-15 13:30 ` Gilles Chanteperdrix
2009-01-15 13:50 ` Gilles Chanteperdrix
2009-01-15 13:32 ` Philippe Gerum
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