[Bug 242747] geli: AMD Epyc+GELI not using Hardware AES

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=242747

John Baldwin <jhb at FreeBSD.org> changed:

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                 CC|                            |asomers at FreeBSD.org

--- Comment #27 from John Baldwin <jhb at FreeBSD.org> ---
(In reply to Eirik Oeverby from comment #26)
This means that the Epyc box is in fact using the "hardware" (well, accelerated
software) instructions like the Xeon, so your issue is not that it is doing
"plain" software encryption.  I would suggest perhaps using hwpmc to
investigate where the CPUs are spending time, but the title of this bug is
rather stale at this point.  Investigating the poorer performance on Epyc might
be worth doing in a new PR.  Alan Somers has done some performance work with
geli in current and might have some ideas on areas to investigate.

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