This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
Home Products Support Community News


Re: [Xen-users] live migration time increases when using "mem-set"

Tim -

What about inodes? Are you using any kind of network file systems from
within the dom-u's? Exporting any NBD's from dom-0 to the dom-u's?
Something is getting 'squished' when you reduce memory, I think. I just
don't know what :)

I think the answer is going to lie in slabinfo in the dom-u, or dom-0,
or both. 

I recommend writing a script to continuously save /proc/slabinfo as a
journal on dom-0 and the dom-u while you duplicate the problem again,
and perhaps you'll find the answer to it there. 

Maybe not quite the right guess, but I think its a guess in the right

Odd, indeed. :)

- Tim

On Wed, 2006-09-06 at 10:15 -0400, Tim Wood wrote:
> On 9/4/06, Tim Post <tim.post@xxxxxxxxxxxxxxx> wrote:
> > Tim -
> >
> > What services are running on the dom-u's , and did you take any measures
> > from within the dom-u's to clear idle child daemons out of cache?
> >
> Good idea, but it doesn't seem to be the cause of the problem.  I was
> running apache and mysql, but even after stopping them I am getting
> the same behavior.  The CPU is idle on the VMs.
> Strange...

Xen-users mailing list

<Prev in Thread] Current Thread [Next in Thread>