Hi All,

I work in performance team with NetApp, Inc.

During qualification process of BSD11 as a guest, we observed that the cost of 
rdtsc call has magnified by 10x compared to BSD10. We are using qemu-2.10 that 
came as a default package in RH7.4. It appears that BSD11 was released before 
qemu-2.10 so I am not sure if we have any supportability issue and I would need 
to upgrade QEMU version.  In what way, I can do more debugging around this? We 
are also experimenting with ESX and we didn’t see this issue there. I also 
could not find any performance benchmarking around BSD+QEMU/KVM.

Thank you,
Udayan Bapat
Software Engineering, Performance Analysis
NetApp, Inc.
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