It works fine

polaris# sysctl machdep.est
machdep.est.frequency.target = 800
machdep.est.frequency.current = 800
machdep.est.frequency.available = 1000 900 800

polaris# openssl speed
To get the most accurate results, try to run this
program when this computer is idle.
Doing md2 for 3s on 16 size blocks: 55706 md2's in 3.01s
Doing md2 for 3s on 64 size blocks: 29548 md2's in 3.01s
Doing md2 for 3s on 256 size blocks: 10203 md2's in 2.99s
Doing md2 for 3s on 1024 size blocks: ^C

polaris# sysctl -w machdep.est.frequency.target=900
machdep.est.frequency.target: 800 -> 900

polaris# openssl speed
To get the most accurate results, try to run this
program when this computer is idle.
Doing md2 for 3s on 16 size blocks: 62654 md2's in 3.00s
Doing md2 for 3s on 64 size blocks: 33270 md2's in 3.01s
Doing md2 for 3s on 256 size blocks: 11553 md2's in 3.01s
Doing md2 for 3s on 1024 size blocks: ^C

polaris# sysctl -w machdep.est.frequency.target=1000
machdep.est.frequency.target: 900 -> 1000

polaris# openssl speed
To get the most accurate results, try to run this
program when this computer is idle.
Doing md2 for 3s on 16 size blocks: 69656 md2's in 3.00s
Doing md2 for 3s on 64 size blocks: 36968 md2's in 3.01s
Doing md2 for 3s on 256 size blocks: 12828 md2's in 3.01s
Doing md2 for 3s on 1024 size blocks: ^C
polaris#

Heron Gallegos
Saltillo Coahuila Mexico