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[Xen-devel] How does domain (smp) scheduling work?
| To: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | [Xen-devel] How does domain (smp) scheduling work? |
| From: | Chris Bainbridge <chris.bainbridge@xxxxxxxxx> |
| Date: | Sat, 1 Oct 2005 19:16:06 +0000 |
| Delivery-date: | Sat, 01 Oct 2005 19:13:41 +0000 |
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| Reply-to: | Chris Bainbridge <chris.bainbridge@xxxxxxxxx> |
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Hi, I'm curious about how the SMP support in Xen works. Is it possible to have a SMP aware 2 vcpu domain running on both physical processors at the same time? Can Xen schedule two domains at the same time, one running on each processor? How about on a hyperthreaded kernel? If one domain has a run away process (eg. fork loop) or bad device driver, will it affect the running of other domains? I suspect it does, as there are no resource guarantees. If I have a SMP or hyperthreaded machine with uniprocessor domains, will other domains be scheduled on the 2nd cpu if the first is being hogged by a runaway domain? Sorry if this has come up before, I've checked google and couldn't find any answers. Cheers, Chris _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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