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Re: [Xen-users] Re: [Xen-devel] irq 17: nobody cared (try booting with the "irqpoll" option)

On 5 Jun 2006, at 18:21, Hans-Christian Armingeon wrote:

Slower than booting without 'noirqdebug'?

Yes. The domain with the device, that owns irq17 consumes very much cpu time, and makes a dual Opteron slow.

If you boot without noirqdebug, how long does it take before domain0
complains about one of its irqs? Does it happen only after you have
started your driver domU?

Well, soetimes it takes a few hours, up to a few days.

Until the kernel decides to disable irq17 it does less work per interrupt when booted with noirqdebug. Are you sure you weren't still running with irqpoll?

 -- Keir

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