wei kin
2007-Nov-30 10:12 UTC
[Xen-users] access to physical cpu in domU without passing through dom0
hi, i am a new member here.
Here''s my question. As i know although i can assign the domU a
specific physical CPU in Xen, but the task of domU still will pass through the
dom0''s scheduler before it goes into it''s CPU. So, is it
possible to directly schedule the domU''s task into the physical CPU?
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Mark Williamson
2007-Dec-02 02:52 UTC
Re: [Xen-users] access to physical cpu in domU without passing through dom0
> hi, i am a new member here.Hi, welcome.> Here''s my question. As i know although i can assign the domU a specific > physical CPU in Xen, but the task of domU still will pass through the > dom0''s scheduler before it goes into it''s CPU. So, is it possible to > directly schedule the domU''s task into the physical CPU?Actually, it won''t go through dom0''s scheduler; dom0''s scheduler just schedules Linux tasks for dom0. The domU will still have to go through Xen''s domain scheduler. However, if you assign a CPU exclusively to the domU and make sure nothing else runs on it then that''s as close you can get to giving the domU total ownership of the CPU. It should be pretty good. Cheers, Mark -- Dave: Just a question. What use is a unicyle with no seat? And no pedals! Mark: To answer a question with a question: What use is a skateboard? Dave: Skateboards have wheels. Mark: My wheel has a wheel! _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users