El 2013-11-28 14:30, shmick@xxxxxxxxxx escribió:
christian@xxxxxxxx:
Hello,
I just compiled cryptsetup-1.6.2 on a machine with AES-NI. During
the
compilation there were some tests. The lines of the output when the
issue occurred were:
REQUIRED CIPHERS TEST
# Algorithm | Key | Encryption | Decryption
aes-cbc 256b 975.0 MiB/s 2037065.0 MiB/s
aes-lrw 384b 103909.0 MiB/s 158691.0 MiB/s
aes-xts 512b 1731833.0 MiB/s 1681613.0 MiB/s
twofish-cbc 256b 241.3 MiB/s 499.5 MiB/s
twofish-lrw 384b 448.6 MiB/s 453.0 MiB/s
twofish-xts 512b 497.0 MiB/s 496.0 MiB/s
serpent-cbc 256b 108.5 MiB/s 351.3 MiB/s
serpent-lrw 384b 333.7 MiB/s 333.0 MiB/s
serpent-xts 512b 363.3 MiB/s 341.0 MiB/s
blowfish-cbc 256b 129.6 MiB/s 500.5 MiB/s
des3_ede-cbc 192b 34.3 MiB/s 35.4 MiB/s
cast5-cbc 128b 121.9 MiB/s 474.0 MiB/s
when these tests ran did all cores process or just 1 single core ?
For aes-cbc, aes-lrw and aes-xts just one core was used (and maxed
out).
However, it took orders of magnitudes longer.
do you know if cryptsetup can take advantage of multi threading on
multi
core processors ?
No.
The tests for aes-cbc, aes-lrw and aes-xts took very long (nearly
one
hour for all three combined) on a Intel Core i5-4670K. All other
tests
were finished in a few seconds.
Is this wanted behavior?
Best regards,
Christian Weinz
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