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

Re: [Xen-devel] Re: [Xen-users] ntpd under Xen Dom0 exhibits extremely high jitter/noise? runs stable/quiet under non-xen kernel.


  • To: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • From: mail ignored <0.bugs.only.0@xxxxxxxxx>
  • Date: Tue, 19 Jan 2010 10:24:27 -0800
  • Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Xen User-List <xen-users@xxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Tue, 19 Jan 2010 10:24:48 -0800
  • Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=keybClKlj42kgKhYFt0CCssa7QDz5TzyPz0E2TW5dnzNne0LXfLxJRXZi4K6nYtk4c jTYXK/5puZKHr+qTVCggOyW4sQUQGcjnnr+mvju3c9xDNPkStNaL//vQ73OTnS6/6bsA TVOou/F2oVsX9pLvkb1nwKP3T3V3yMzK0sKp8=
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

On Tue, Jan 19, 2010 at 10:04 AM, Keir Fraser <keir.fraser@xxxxxxxxxxxxx> wrote:
> On 19/01/2010 17:58, "mail ignored" <0.bugs.only.0@xxxxxxxxx> wrote:
>
>>> If this does
>>> turn out to be a hardware issue, then yes that is just the kind of case
>>> where you might expect to have to tweak things on the Xen command line.
>>
>> the 'common' hardware is, of course, the AMD Phenom II X4 cpu ...
>
> The particular hardware that really matters is the chipset, as that is where
> the HPET resides. Is that common across all the systems?
>

no, not identical,

(1)(2) ASUS M4A78T-E
  North Bridge          AMD 790GX
  South Bridge  AMD SB750

(3)    MSI 790FX-GD70
  North Bridge  AMD 790FX
  South Bridge  AMD SB750

(4)(5) GIGABYTE GA-MA770T-UD3P
  North Bridge  AMD 770
  South Bridge  AMD SB710

but, perhaps, related enough?

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


 


Rackspace

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