[CentOS-virt] Xen vs. iSCSI
pasik at iki.fi
Tue Jun 16 19:15:51 UTC 2009
On Tue, Jun 16, 2009 at 01:57:55PM -0400, Bill McGonigle wrote:
> On 06/15/2009 11:33 PM, Luke S Crawford wrote:
> > xm sched-credit -d 0 60000
> Ah, ha! This appears to work. I didn't need to reserve a CPU for the
> dom0 (knock on wood). Much obliged, Luke.
> I'm academically curious, though - I seem to have created a CPU deadlock
> of some sort, yet in 'xm top' none of the CPU's were pegged. I've got
> no reason to not give dom0 utmost priority - that makes perfect sense to
> me - but I'm surprised the Xen scheduler would allow me to get into this
> situation by default.
Well, you have pretty weird storage setup.. dom0 iSCSI initiator depends on
domU iSCSI target, which again depends on disks on dom0..
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