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

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 18.06.15 at 10:53, <yang.z.zhang@xxxxxxxxx> wrote:
> 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.

??? (I.e. I don't see the connection between the context and your
reply. Perhaps I'm missing something obvious...)

Jan


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