[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] Xen compatibility interface numbering
> >> Can I run a 2.4 domU against a 2.6 dom0 and vice-versa, > >> if both are patched to the same level of Xen? > > > > Yes. You can play with this on the Demo CD. > > How does that work when dom0 is 100 Hz 2.4 kernel and domU is 1000 Hz > 2.6 kernel? I will answer this question, although there might be better people to explain this. The scheduling code in both 2.4 and 2.6 kernels relay on hardware timer (to interrupt with 100 or 1000 Hz frequency). But the timers had to be virtualised, and therefore the parts of the code responsible for scheduling patched up as well. This way both linux kernels can work just fine. (BTW remember that Xen also has a scheduler which decides which domain should be run, but then the domains have freedom of scheduling their own processes). Cheers Gregor > > > > ------------------------------------------------------- > SF email is sponsored by - The IT Product Guide > Read honest & candid reviews on hundreds of IT Products from real users. > Discover which products truly live up to the hype. Start reading now. > http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click > _______________________________________________ > Xen-devel mailing list > Xen-devel@xxxxxxxxxxxxxxxxxxxxx > https://lists.sourceforge.net/lists/listinfo/xen-devel -- Quidquid latine dictum sit, altum viditur --- Anon ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/xen-devel
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