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[Xen-users] irqbalanced on SMP dom0 ?

  • To: XEN User - listmembers <xen-users@xxxxxxxxxxxxxxxxxxx>
  • From: Stephan Seitz <s.seitz@xxxxxxxxxxxx>
  • Date: Tue, 11 Sep 2007 19:51:32 +0200
  • Delivery-date: Tue, 11 Sep 2007 10:52:37 -0700
  • List-id: Xen user discussion <xen-users.lists.xensource.com>

Hi listmembers,

not a really urgent question, but i'm just curious about it:

Is it advised to use an irqbalanced on dom0 when running
domU's pinned to particular cores?

as an example, i've got a dual quadcore xen system running
        domU pinned to cores 1-3 (CPU#0)
        domU pinned to cores 4-5 (CPU#1)
        domU pinned to cores 6-7 (CPU#1)
so dom0 should have 100% time on core 0 (CPU#0).

When looking at /proc/interrupts, all peth and arcmsr (areca raid)
interrupts - said: all IO - are handled by CPU0.

Should i use irqbalanced to use other cores as well?

Any suggestions are really welcome!

Thanks in advance.


Stephan Seitz
Senior System Administrator

*netz-haut* e.K.
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97074 würzburg

fon: +49 931 2876247
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