[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-users] Xen time drift issues

  • To: xen-users@xxxxxxxxxxxxxxxxxxx
  • From: Priya <pbhat@xxxxxxxxxxxx>
  • Date: Wed, 1 Jul 2009 11:25:00 -0400
  • Delivery-date: Mon, 06 Jul 2009 07:41:22 -0700
  • Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:date:x-google-sender-auth:message-id:subject :from:to:content-type:content-transfer-encoding; b=gTwOb/ty4QZ2A/TQKogDs2z5i3a4FWJCk4IQB/5j1EC1HY0pTB/YbrqK4c/ep0rZut 0D8kEHbhN0CZ7KEIqBUxjM82aXmpyskO0qTlTBbX7Ms/Q1rS/IcuiNlcuXw73tge7gSR Si30CK9aE4BMH4ejkFC0P/9OcK+OvY52pvDbM=
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Hello everyone!

I been observing some peculiar time drift on my Xen domains (dom0 and
domUs).  The time (as returned by timeofday) on my domains drifts at
an almost steady rate from the real time ( as read from the time stamp
counter ).

The drift is so constant that it makes me think there should be some
simple explanation for it in the way Xen keeps time.

Some info about my set up:
guest OS: ubuntu
independent_wallclock is set to default 0 on all domains
no NTP synchronization

The drift is around 50 microseconds / second on all the domains. Has
anyone else observed this? If anyone can point me to some
documentation that explains this behavior, that would be great!

Good day!

Xen-users mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.