Re: [Xen-devel] Backport requests of cs 23420..23423 for 4.0 and 4.1

[Juergen Gross <juergen.gross@xxxxxxxxxxxxxx>]

Am 19.07.2012 17:11, schrieb Ian Jackson:
> Keir Fraser writes ("Re: [Xen-devel] Backport requests of cs 23420..23423 for 4.0 
> and 4.1"):
> > On 13/07/2012 07:08, "Juergen Gross"<juergen.gross@xxxxxxxxxxxxxx>  wrote:
> > > I would like to request to include these changesets in 4.0 and
> > > 4.1. The backport is quite trivial, I can send patches if you are
> > > willing to take them.
> > Will need an Ack from George and then patches applied by (or at least an Ack
> > from) a tools maintainer.
> Thanks for replying Keir, but I'm rather queasy about this.
>
> These patches have not been in any released version of Xen and are
> fairly substantial.  I would say that we should not backport anything
> that isn't a critical bugfix which hasn't been sitting in a released
> version of Xen for a while; and a new feature ought to be considered
> very carefully.
>
> Now maybe the unfortunately extended 4.2 release cycle may mean we
> should relax this rule but I'd prefer to see a clear justification for
> why this is important to retrofit to 4.1.
Live migration is a main high-availability feature of our next release.

A performance degradation of 10% and more will not be easily accepted for
a system which is expected to be up 24/7.

I assume there is a reason the patches are in XCP right now. :-)


Juergen

--
Juergen Gross                 Principal Developer Operating Systems
PDG ES&S SWE OS6                       Telephone: +49 (0) 89 3222 2967
Fujitsu Technology Solutions              e-mail: juergen.gross@xxxxxxxxxxxxxx
Domagkstr. 28                           Internet: ts.fujitsu.com
D-80807 Muenchen                 Company details: ts.fujitsu.com/imprint.html

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel