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Hi,
after an upgrade, i've got my luks/lvm setup very slow :
Output of cryptsetup benchmark (XPS 13 / linux-5.15.10) :
# Algorithm | Key | Encryption | Decryption
aes-cbc 128b 77.6 MiB/s 280.3 MiB/s
serpent-cbc 128b 4.3 MiB/s 32.6 MiB/s
twofish-cbc 128b 6.7 MiB/s 21.4 MiB/s
aes-cbc 256b 58.2 MiB/s 221.9 MiB/s
serpent-cbc 256b 5.7 MiB/s 33.9 MiB/s
twofish-cbc 256b 12.5 MiB/s 19.6 MiB/s
aes-xts 256b 153.9 MiB/s 214.7 MiB/s
serpent-xts 256b 25.9 MiB/s 30.6 MiB/s
twofish-xts 256b 18.2 MiB/s 18.4 MiB/s
aes-xts 512b 201.3 MiB/s 196.5 MiB/s
serpent-xts 512b 31.8 MiB/s 30.4 MiB/s
twofish-xts 512b 19.8 MiB/s 20.0 MiB/s
All previous Kernel 5.15.x have same results. After downgrade to Linux 5.14.14 , resultats changes :
# Algorithm | Key | Encryption | Decryption
aes-cbc 128b 1211.3 MiB/s 4510.6 MiB/s
serpent-cbc 128b 71.6 MiB/s 526.5 MiB/s
twofish-cbc 128b 180.4 MiB/s 305.2 MiB/s
aes-cbc 256b 890.5 MiB/s 3382.7 MiB/s
serpent-cbc 256b 72.9 MiB/s 501.3 MiB/s
twofish-cbc 256b 177.5 MiB/s 313.6 MiB/s
aes-xts 256b 3545.3 MiB/s 3575.8 MiB/s
serpent-xts 256b 496.9 MiB/s 467.9 MiB/s
twofish-xts 256b 311.8 MiB/s 310.6 MiB/s
aes-xts 512b 3188.3 MiB/s 3205.6 MiB/s
serpent-xts 512b 505.2 MiB/s 475.6 MiB/s
twofish-xts 512b 314.1 MiB/s 315.2 MiB/s
does anyone have the same problem ?
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works fine for me - does cat /proc/cpuinfo and lsmod differ between kernels? in particular, the aes flag / aes modules? your benchmark result seems like the aes acceleration is not working for some reason.
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I've got the problem again ... after hibernate ...
Any idea how to solve that ?
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