tdn@corvina) (17-04-27 13:36:06) (P:0 L:1) [1] ~ $ openssl speed -elapsed -evp aes-256-cbc [R1 J0 L:0.06 0.25 0.53 U:22+17:19 pts/13 3722H] You have chosen to measure elapsed time instead of user CPU time. Doing aes-256-cbc for 3s on 16 size blocks: 71479881 aes-256-cbc's in 3.00s Doing aes-256-cbc for 3s on 64 size blocks: 19111996 aes-256-cbc's in 3.00s Doing aes-256-cbc for 3s on 256 size blocks: 5538817 aes-256-cbc's in 3.00s Doing aes-256-cbc for 3s on 1024 size blocks: 1232516 aes-256-cbc's in 3.00s Doing aes-256-cbc for 3s on 8192 size blocks: 171858 aes-256-cbc's in 3.00s OpenSSL 1.0.1t 3 May 2016 built on: Thu Jan 26 23:29:15 2017 options:bn(64,64) rc4(16x,int) des(idx,cisc,16,int) aes(partial) blowfish(idx) compiler: gcc -I. -I.. -I../include -fPIC -DOPENSSL_PIC -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -m64 -DL_ENDIAN -DTERMIO -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -Wl,-z,relro -Wa,--noexecstack -Wall -DMD32_REG_T=int -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DWHIRLPOOL_ASM -DGHASH_ASM The 'numbers' are in 1000s of bytes per second processed. type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes aes-256-cbc 381226.03k 407722.58k 472645.72k 420698.79k 469286.91k (tdn@corvina) (17-04-27 13:36:35) (P:0 L:1) [0] ~ $ openssl speed -elapsed aes-256-cbc [R0 J0 L:0.26 0.28 0.53 U:22+17:19 pts/13 3723H] You have chosen to measure elapsed time instead of user CPU time. Doing aes-256 cbc for 3s on 16 size blocks: 12207298 aes-256 cbc's in 3.00s Doing aes-256 cbc for 3s on 64 size blocks: 3378006 aes-256 cbc's in 3.00s Doing aes-256 cbc for 3s on 256 size blocks: 886965 aes-256 cbc's in 3.00s Doing aes-256 cbc for 3s on 1024 size blocks: 233857 aes-256 cbc's in 3.00s Doing aes-256 cbc for 3s on 8192 size blocks: 25438 aes-256 cbc's in 3.00s OpenSSL 1.0.1t 3 May 2016 built on: Thu Jan 26 23:29:15 2017 options:bn(64,64) rc4(16x,int) des(idx,cisc,16,int) aes(partial) blowfish(idx) compiler: gcc -I. -I.. -I../include -fPIC -DOPENSSL_PIC -DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -m64 -DL_ENDIAN -DTERMIO -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -Wl,-z,relro -Wa,--noexecstack -Wall -DMD32_REG_T=int -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DWHIRLPOOL_ASM -DGHASH_ASM The 'numbers' are in 1000s of bytes per second processed. type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes aes-256 cbc 65105.59k 72064.13k 75687.68k 79823.19k 69462.70k (tdn@corvina) (17-04-27 13:37:27) (P:0 L:1) [0] ~ $