RE: [Xen-devel] Interrupt delivery

["Ian Pratt" <m+Ian.Pratt@xxxxxxxxxxxx>]

> Does Xen attempt to pre-emptively schedule the domain that is the
> recepient of a physical device interrupt. A quick look at the code
> appears to indicate that all we do is unblock the domain if it is
> blocked (evtchn_set_pending()). Are Driver domains given any 
> preference in scheduling?

Both BVT and Antropos have some controls for influencing domains'
unblocking latency, but as yet there's been no systematic attempt made
to tune any of the parameters. I know Stephan is looking into some of
this stuff.

Ian


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