[Bug 225579] CPU usage in top command not matching with VMWare Host's esxtop command's vCPU output

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=225579

Rodney W. Grimes <rgrimes at FreeBSD.org> changed:

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--- Comment #1 from Rodney W. Grimes <rgrimes at FreeBSD.org> ---
I can do some investigation here, but using an I/O intensive task and
evaluating CPU load is probably not a good choice in benchmarks or testing.

Are the FreeBSD guests using UFS, or ZFS or ??? for the file system that
the dd operations are going to.  Is the backing store in ESXi eager or
lazy zero?

What file system was used in the ubuntu case?  What version of Ununtu?

What are the I/O rates during this testing?  This really is an I/O
benchmark and not a CPU benchmark.

Would be interesting to see this running a CPU intensive task.

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