Ahoj,
nema nekdo nejaka data?
Dell R940, Xeon 6136 3GHz, Perc H740p, 4x SAS12G SSD v R10, fio 75/25 R/W test:
1] no luks: 73k/24k IOPS
2] luks: 54k/18k IOPS
Zasifrovana je primo VG na sdxy, nasledne lv->ext4->fio test.
Propad 26%, je to bezne? Kolega testoval na jinem serveru, HW raid + SATA SSD a jeho rozdil je 1-2%...
# Tests are approximate using memory only (no storage IO).
PBKDF2-sha1 1483134 iterations per second for 256-bit key
PBKDF2-sha256 1688528 iterations per second for 256-bit key
PBKDF2-sha512 1381523 iterations per second for 256-bit key
PBKDF2-ripemd160 1061311 iterations per second for 256-bit key
PBKDF2-whirlpool 802891 iterations per second for 256-bit key
# Algorithm | Key | Encryption | Decryption
aes-cbc 128b 1128.1 MiB/s 3449.6 MiB/s
serpent-cbc 128b 94.6 MiB/s 695.0 MiB/s
twofish-cbc 128b 209.0 MiB/s 387.8 MiB/s
aes-cbc 256b 854.5 MiB/s 2771.3 MiB/s
serpent-cbc 256b 94.5 MiB/s 697.7 MiB/s
twofish-cbc 256b 208.4 MiB/s 385.4 MiB/s
aes-xts 256b 1906.0 MiB/s 1887.5 MiB/s
serpent-xts 256b 676.2 MiB/s 686.8 MiB/s
twofish-xts 256b 377.3 MiB/s 381.8 MiB/s
aes-xts 512b 1767.6 MiB/s 1760.7 MiB/s
serpent-xts 512b 682.1 MiB/s 692.8 MiB/s
twofish-xts 512b 373.6 MiB/s 373.5 MiB/s
LUKS header information for /dev/sdb1
Version: 1
Cipher name: aes
Cipher mode: xts-plain64
Hash spec: sha256
Payload offset: 4096
MK bits: 512
Diky