[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PROPOSAL] Event channel for SMP-VMs: per-vCPU or per-OS?
On Tue, Oct 29, 2013 at 5:34 PM, Jan Beulich <JBeulich@xxxxxxxx> wrote: I think the situation is much like IO-APIC routing in physical SMP systems:
in logical destination mode, all processors can serve I/O interrupts.
Seemingly the current IRQ handlers can deal with it gracefully. Compared with the potential latency issue, I think the gain of this approach is bigger: avoiding vCPU scheduling delays (10x ms).
Thanks, Luwei _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
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