[Ocf-linux-users] Benchmarking issues

[Adam C. (Le_Vert) <ga...@le...>]

Hello OCF guys,

I'm trying to enable ocf on a Geode LX cpu wich is known to handle 
aes-128-cbc trhough geode-aes kernel module.
I rebuilt linux-3.0 with OCF kernel patch and then rebuilt openssl 
debian's package with -DHAVE_CRYPTODEV -I$(CURDIR)/debian/includes (this 
directory contains crypto/cryptodev.h)
Then I loaded ocf, cryptosoft and cryptodev kernel modules...

Here is the result of my tests using different cipher:

# With OpenSSL 1.0.0d cryptodev enabled package
# openssl speed -evp <cipher>
aes-128-cbc      16761.07k    58822.40k   240275.91k   547942.40k  
3126886.40k
bf-cbc           13351.73k    67366.40k   191564.80k   715946.67k  
1298432.00k
des-ede3-cbc     30708.80k    88375.47k   186675.20k   
415846.40k         infk

#rmmod cryptodev
aes-128-cbc       3595.73k     3942.16k     4062.50k     8154.89k     
8244.06k
bf-cbc            8260.17k    10052.27k    10728.30k    10923.12k    
10929.06k
des-ede3-cbc      1961.65k     2046.67k     2071.55k     2076.43k     
2074.03k

Results without cryptodev looks fine (slow 500Mhz CPU) but the ones with 
cryptodev loaded doesn't make any sense !
There's no reason to have such faster blowfish and des results, as the 
hardware chip only handles aes-128-cbc.
Could you please tell me what I'm doing wrong ???

Thanks a lot in advance,

Regards, Adam.