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xen-devel
Re: [Xen-devel] Why have an idle domain? (Was: IDLE domain is scheduled
Magenheimer, Dan (HP Labs Fort Collins) wrote:
What I propose is that domain0 become the idle domain. Special
casing code would be added to the schedulers so that domain0
is always runnable and thus will absorb any "idle" cycles.
This is admittedly not a grave concern, but doing what you propose will
screw up performance accounting, since we won't know for sure how much
cpu time dom0 is really using. And there is reason to believe that dom0
cpu usage should be closely monitored.
Rob Gardner
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