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openssl speed -elapsed aes-128-cbc

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You have chosen to measure elapsed time instead of user CPU time. Doing aes-128 cbc for 3s on 16 size blocks: 5727842 aes-128 cbc's in 3.00s Doing aes-128 cbc for 3s on 64 size blocks: 1601916 aes-128 cbc's in 3.00s Doing aes-128 cbc for 3s on 256 size blocks: 417103 aes-128 cbc's in 3.00s Doing aes-128 cbc for 3s on 1024 size blocks: 276776 aes-128 cbc's in 3.00s Doing aes-128 cbc for 3s on 8192 size blocks: 34782 aes-128 cbc's in 3.00s Doing aes-128 cbc for 3s on 16384 size blocks: 17427 aes-128 cbc's in 3.00s OpenSSL 1.1.1 11 Sep 2018 built on: Tue Nov 12 16:58:35 2019 UTC options:bn(64,64) rc4(16x,int) des(int) aes(partial) blowfish(ptr) compiler: gcc -fPIC -pthread -m64 -Wa,--noexecstack -Wall -Wa,--noexecstack -g -O2 -fdebug-prefix-map=/build/openssl-kxN_24/openssl-1.1.1=. -fstack-protector-strong -Wformat -Werror=format-security -DOPENSSL_USE_NODELETE -DL_ENDIAN -DOPENSSL_PIC -DOPENSSL_CPUID_OBJ -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DKECCAK1600_ASM -DRC4_ASM -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DGHASH_ASM -DECP_NISTZ256_ASM -DX25519_ASM -DPADLOCK_ASM -DPOLY1305_ASM -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 The 'numbers' are in 1000s of bytes per second processed. type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 16384 bytes aes-128 cbc 30548.49k 34174.21k 35592.79k 94472.87k 94978.05k 95174.66k openssl speed -elapsed -evp aes-128-cbc

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You have chosen to measure elapsed time instead of user CPU time. Doing aes-128-cbc for 3s on 16 size blocks: 25276701 aes-128-cbc's in 3.00s Doing aes-128-cbc for 3s on 64 size blocks: 10482783 aes-128-cbc's in 3.00s Doing aes-128-cbc for 3s on 256 size blocks: 3442647 aes-128-cbc's in 3.00s Doing aes-128-cbc for 3s on 1024 size blocks: 914046 aes-128-cbc's in 3.00s Doing aes-128-cbc for 3s on 8192 size blocks: 119508 aes-128-cbc's in 3.00s Doing aes-128-cbc for 3s on 16384 size blocks: 59686 aes-128-cbc's in 3.00s OpenSSL 1.1.1 11 Sep 2018 built on: Tue Nov 12 16:58:35 2019 UTC options:bn(64,64) rc4(16x,int) des(int) aes(partial) blowfish(ptr) compiler: gcc -fPIC -pthread -m64 -Wa,--noexecstack -Wall -Wa,--noexecstack -g -O2 -fdebug-prefix-map=/build/openssl-kxN_24/openssl-1.1.1=. -fstack-protector-strong -Wformat -Werror=format-security -DOPENSSL_USE_NODELETE -DL_ENDIAN -DOPENSSL_PIC -DOPENSSL_CPUID_OBJ -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_MONT5 -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM -DSHA256_ASM -DSHA512_ASM -DKECCAK1600_ASM -DRC4_ASM -DMD5_ASM -DAES_ASM -DVPAES_ASM -DBSAES_ASM -DGHASH_ASM -DECP_NISTZ256_ASM -DX25519_ASM -DPADLOCK_ASM -DPOLY1305_ASM -DNDEBUG -Wdate-time -D_FORTIFY_SOURCE=2 The 'numbers' are in 1000s of bytes per second processed. type 16 bytes 64 bytes 256 bytes 1024 bytes 8192 bytes 16384 bytes aes-128-cbc 134809.07k 223632.70k 293772.54k 311994.37k 326336.51k 325965.14k
cat /proc/cpuinfo

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processor : 0 vendor_id : GenuineIntel cpu family : 6 model : 76 model name : Intel(R) Atom(TM) x5-Z8350 CPU @ 1.44GHz stepping : 4 microcode : 0x411 cpu MHz : 1700.935 cache size : 1024 KB physical id : 0 siblings : 4 core id : 0 cpu cores : 4 apicid : 0 initial apicid : 0 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb pti ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat md_clear bugs : cpu_meltdown spectre_v1 spectre_v2 mds msbds_only bogomips : 2880.00 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 1 vendor_id : GenuineIntel cpu family : 6 model : 76 model name : Intel(R) Atom(TM) x5-Z8350 CPU @ 1.44GHz stepping : 4 microcode : 0x411 cpu MHz : 1707.011 cache size : 1024 KB physical id : 0 siblings : 4 core id : 1 cpu cores : 4 apicid : 2 initial apicid : 2 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb pti ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat md_clear bugs : cpu_meltdown spectre_v1 spectre_v2 mds msbds_only bogomips : 2880.00 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 2 vendor_id : GenuineIntel cpu family : 6 model : 76 model name : Intel(R) Atom(TM) x5-Z8350 CPU @ 1.44GHz stepping : 4 microcode : 0x411 cpu MHz : 1682.546 cache size : 1024 KB physical id : 0 siblings : 4 core id : 2 cpu cores : 4 apicid : 4 initial apicid : 4 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb pti ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat md_clear bugs : cpu_meltdown spectre_v1 spectre_v2 mds msbds_only bogomips : 2880.00 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management: processor : 3 vendor_id : GenuineIntel cpu family : 6 model : 76 model name : Intel(R) Atom(TM) x5-Z8350 CPU @ 1.44GHz stepping : 4 microcode : 0x411 cpu MHz : 1689.529 cache size : 1024 KB physical id : 0 siblings : 4 core id : 3 cpu cores : 4 apicid : 6 initial apicid : 6 fpu : yes fpu_exception : yes cpuid level : 11 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology tsc_reliable nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm sse4_1 sse4_2 movbe popcnt tsc_deadline_timer aes rdrand lahf_lm 3dnowprefetch epb pti ibrs ibpb stibp tpr_shadow vnmi flexpriority ept vpid tsc_adjust smep erms dtherm ida arat md_clear bugs : cpu_meltdown spectre_v1 spectre_v2 mds msbds_only bogomips : 2880.00 clflush size : 64 cache_alignment : 64 address sizes : 36 bits physical, 48 bits virtual power management:

AES-NI