Re: [Xen-devel] performace issue when turn on apicv

["Zhang, Yang Z" <yang.z.zhang@xxxxxxxxx>]

Jan Beulich wrote on 2015-06-18:
>>>> On 18.06.15 at 10:20, <JBeulich@xxxxxxxx> wrote:
>> Apart from that I notice that the EXIT_REASON_EOI_INDUCED handling
>> also adds about the same number of ticks...
> 
> Are there any other devices in the guest causing meaningful amounts of
> interrupts (I suppose the SSD itself is using just one)? I ask since I
> wonder whether e.g. there may be lock contention in vioapic_update_EOI().

The EXIT_REASON_EOI_INDUCED is for local apic time.

> 
> Jan


Best regards,
Yang



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