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[Xen-devel] Performances compare between PV domU & HVM domU & PV-on-HVM domU
As we all know, xen currently support these three types domU mode, and every mode has it's own features, such as:
PV: Good I/O performance Have to modify the domU kernel
Hardware Independent Can't support windows
HVM: no need to modify kernel not good at I/O performance
support various OS include Hardware dependent(VT)
PV-on-HVM: Optimize the I/O Have to transplant the pv performance with pv drivers drivers between various kernel support various OS include versions
1.Are the compare right? Or where can I get the more detailed performance compare given by the government? Specially, what about I/O performance between PV & PV-on-HVM???
2.When I choose domU mode, what conditions should I care for?
3.Is PV can use VT hardware technology?
4.In future, which modes will become the main direction?
Any reply will be appreciated, thanks a lot.
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