From mboxrd@z Thu Jan  1 00:00:00 1970
From: Joanna Rutkowska <joanna@invisiblethingslab.com>
Subject: Re: A clocksource question
Date: Thu, 11 Mar 2010 01:52:25 +0100
Message-ID: <4B983EC9.2030105@invisiblethingslab.com>
References: <4B962748.90609@invisiblethingslab.com>
	<4B96DB69.10101@goop.org	4B981997.4030605@invisiblethingslab.com>
	<56cc3abf-21f6-4178-b00e-0331538080d9@default>
	<4FA716B1526C7C4DB0375C6DADBC4EA3554D53F1B0@LONPMAILBOX01.citrite.net>
Mime-Version: 1.0
Content-Type: multipart/mixed; boundary="===============1412599183=="
Return-path: <xen-devel-bounces@lists.xensource.com>
In-Reply-To: <4FA716B1526C7C4DB0375C6DADBC4EA3554D53F1B0@LONPMAILBOX01.citrite.net>
List-Unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
List-Post: <mailto:xen-devel@lists.xensource.com>
List-Help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-Subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>,
	<mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
Sender: xen-devel-bounces@lists.xensource.com
Errors-To: xen-devel-bounces@lists.xensource.com
To: Ian Pratt <Ian.Pratt@eu.citrix.com>
Cc: Dan Magenheimer <dan.magenheimer@oracle.com>, "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>, Jeremy Fitzhardinge <jeremy@goop.org>
List-Id: xen-devel@lists.xenproject.org

This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--===============1412599183==
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature";
	boundary="------------enig7DC9693E0FC519170AE363CC"

This is an OpenPGP/MIME signed message (RFC 2440 and 3156)
--------------enig7DC9693E0FC519170AE363CC
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

On 03/11/2010 01:21 AM, Ian Pratt wrote:
>> The TSC delta is troubling... if you hadn't said you had turned
>> off all power management, I would have guessed a problem with
>> C-state management.  Maybe Xen is discovering some power management
>> capability not visible in BIOS settings?
>=20
> Xen uses the architectural C state mechanism, bypassing ACPI.
> Use "max_cstate=3D0"
>=20
Tried it (as an argument to xen) and it didn't seem to help.

BTW, how does the clocksource=3Djiffies work on a pvops kernel in Dom0?

j.


--------------enig7DC9693E0FC519170AE363CC
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Comment: Using GnuPG with Fedora - http://enigmail.mozdev.org/

iEYEARECAAYFAkuYPtAACgkQORdkotfEW84ioQCeMssFwgtWGuPwFdpsfqw2AvSe
7P4An0iQVzuGGKgPGnoFs2RsXeOn0Ixy
=r9KH
-----END PGP SIGNATURE-----

--------------enig7DC9693E0FC519170AE363CC--


--===============1412599183==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

--===============1412599183==--