[Xen-devel] slow xenU domains

[David Becker <becker@xxxxxxxxxxx>]

Over the two weeks or more I've been seeing occasional xenU run slowly as
soon as they are created.   Once I get logged in, command line response
is intermittent and bursty.   Activity will stall then proceed in a
burst.   If the domain is shutdown and restarted, it often runs fine,
but may again be slow.   There are no log messages from xen,
xen0, or xenU.

I just upgraded to today's pull on 85 hosts, and about 10% of xenU
domains showed this slow behavior.  I've not had any trouble with xen0.
This is with both linux 2.4 and linux 2.6 as xen0 and xenU.
Most of the machines are uni's, and a mix of PIII and P4 cpus.
For now, I have to revert this batch of boxes to stock linux.

(XEN) Using scheduler: Borrowed Virtual Time (bvt)


Is there a way to inquire what the current scheduler is and what its
params are?  How do I see the priorities of the domains?



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