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I've read "Performance Analysis and Opportunities
for Improvecment" in Xen Summit 2007.
J. Renato Santos et al. in HP Lab shows the
siginificant CPU Cost of XenLinux. (Compare to Linux)
I don't understand the statistics about "CPU
Utilization".
In my guess,
Xenoprof supported in Xen 3.0.3 is not
available to activate Passive Domain Mode profiling.
So if the benchmark server is hosted by
domU, then the CPU utilization means the summation of cycles
reported from dom0 and domU
individually.
Comparing with the results hosted by Linux, it is
three times longer.
I don't know if the guess condition is
wright.
But I still not figure out how the improvement benefit network
throughput.
Is it because lower CPU utilization higher packet process rate??
Why not show network throught directly??
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