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

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Thu Jan 30 18:15:08 UTC 2020


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

--- Comment #12 from Nick Evans <nevans at talkpoint.com> ---
(In reply to Conrad Meyer from comment #11)

I've also noticed that with the lower thread counts they are sometimes pinning
the g_eli threads to SMT cores too. I can't cpuset them to the physical cores
either. There would probably be some benefit to only pinning them to the
physical cores. AMD's SMT is better than Intel, and I'm not sure if there's a
penalty using SMT cores rather than physical on *BSD, but in my experience with
Windows at least there is.

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