On 12 July 2018 at 18:10, Darren Tucker <dtucker@xxxxxxxxxxx> wrote:
[...]
> compiler: information not available
> rsa 512 bits 0.000964s 0.000059s 1037.3 16987.1
> rsa 1024 bits 0.006052s 0.000271s 165.2 3687.3
> rsa 2048 bits 0.040528s 0.001145s 24.7 873.6
> rsa 4096 bits 0.278889s 0.004272s 3.6 234.1
>
> $ libressl-2.2.7/apps/openssl speed rsa
> [...]
> options:bn(64,64) rc4(16x,int) des(idx,cisc,16,int) aes(partial)
> idea(int) blowfish(idx)
> compiler: information not available
> sign verify sign/s verify/s
> rsa 512 bits 0.000074s 0.000008s 13466.5 130066.4
> rsa 1024 bits 0.000271s 0.000017s 3690.6 57557.5
> rsa 2048 bits 0.001665s 0.000054s 600.6 18684.4
> rsa 4096 bits 0.011938s 0.000195s 83.8 5121.7
Someone suggested that Apple might be shipping with assembler
optimizations disabled. That might be part of it (about a 2.5x
slowdown compared to with them) but it would still leave an order of
magnitude unaccounted for.
Local build with --disable-asm:
sign verify sign/s verify/s
rsa 512 bits 0.000191s 0.000016s 5236.4 62283.9
rsa 1024 bits 0.000863s 0.000046s 1158.4 21805.9
rsa 2048 bits 0.005286s 0.000148s 189.2 6765.1
rsa 4096 bits 0.035035s 0.000515s 28.5 1941.7
--
Darren Tucker (dtucker at dtucker.net)
GPG key 11EAA6FA / A86E 3E07 5B19 5880 E860 37F4 9357 ECEF 11EA A6FA (new)
Good judgement comes with experience. Unfortunately, the experience
usually comes from bad judgement.
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