cryptsetup benchmark --cipher aes-xts # Tests are approximate using memory only (no storage IO). # Algorithm | Key | Encryption | Decryption

cryptsetup benchmark --cipher aes-xts # Tests are approximate using memory only (no storage IO). # Algorithm | Key | Encryption | Decryption aes-xts 256b 2266.2 MiB/s 2273.8 MiB/s perf says 21.86% cryptsetup [aesni_intel] [k] _aesni_dec4 19.83% cryptsetup [aesni_intel] [k] _aesni_enc4 17.80% cryptsetup [aesni_intel] [k] aesni_xts_crypt8 13.73% cryptsetup [kernel] [k] copy_user_generic_unrolled 2.20% cryptsetup [kernel] [k] get_page_from_freelist 1.86% cryptsetup [glue_helper] [k] glue_xts_crypt_128bit 1.53% cryptsetup [kernel] [k] put_page 1.36% cryptsetup [kernel] [k] blkcipher_walk_done so it's using the code from: https://github.com/torvalds/linux/blob/master/arch/x86/crypto/aesni-intel_asm.S#L2848 https://github.com/torvalds/linux/blob/master/arch/x86/crypt... I don't know if using AVX would speed it up. openssl is faster (openssl speed -evp aes-256-gcm and aes-256-xts).