Re: [Xen-devel] Dom0 losing interrupts???

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

>>> On 14.02.11 at 07:59, Juergen Gross <juergen.gross@xxxxxxxxxxxxxx> wrote:
> I used xen-unstable, kernel 2.6.32.24 from SLES11 SP1 on a 12 core INTEL
> nehalem machine. I pinned all 12 Dom0 vcpus to pcpu 1-2 and started a 
> parallel
> build. After about 2 minutes the first missing interrupts were reported, a
> little bit later the next one, no xen messages are printed:

That's certainly not too surprising, somewhat depending on the
maximally tolerated latencies. It seems unlikely to me for a 6-fold
CPU over-commit to promise stable operation, yet certain
adjustments could probably be done to make it work better (like
temporarily boosting the priority of a hardware interrupt's target
vCPU).

Jan



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