Thanks for help. I found that hw.setperf was 0.
After I changed it to 100 I have finally better result:

aes-128-cbc 18856.53k 23989.65k 25833.94k 26151.91k 26475.44k aes-256-cbc 14547.03k 16952.78k 18680.72k 18961.58k 19041.28k

hw.cpuspeed=1600
hw.setperf=100


Yep, it does seem a little slow. I dug out my eee 901, which looks
like this:

hw.model=Intel(R) Atom(TM) CPU N270 @ 1.60GHz ("GenuineIntel" 686-class)
hw.cpuspeed=1600
aes-128-cbc 9025.10k 8188.81k 13661.36k 18803.06k 18486.47k aes-256-cbc 8418.11k 8694.41k 10652.56k 13046.04k 13441.75k

(for easier comparison I'll repeat the numbers from my 230 which
is a Jetway board here)
aes-128-cbc 19038.03k 22711.28k 25477.35k 26380.26k 26533.04k aes-256-cbc 12845.55k 17726.87k 18514.90k 18995.34k 19078.13k

Don't forget things other than the CPU are important too; memory
bandwidth in particular. Are you making sure the machine is not in
a power-saving mode (check hw.cpuspeed) and is otherwise idle
(check top) when you run it?


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