Solved How can I see the real CPU frequency in Turbo mode (max freq + 1)?

[Mjölnir]

TIA

 

[Bobi B.]

How about sysctl dev.cpu.0.freq?

 

[a6h]

An example:
# sysctl dev.cpu.0.freq_levels

2201/45000   2200/45000   2000/39581   [...]   900/15437   800/13723

min: 800
max: 2200
turbo: 2201 (extra +1)

It can be enabled with performance_cpu_freq="HIGH" in /etc/rc.conf => https://wiki.freebsd.org/SystemTuning#POWER_MANAGEMENT
or with sysctl(8):
# sysctl dev.cpu.0.freq=2201

A few useful utilities: sysutils/x86info and sysutils/intel-pcm

 

[Mjölnir]

pcm.x shows relative CPU frequency. The user must be in the group kmem.
EDIT performance_cpu_freq="HIGH" is not needed to get Turbo mode, but instead
sysrc performance_cx_lowest=Cmax & sysrc economy_cx_lowest=Cmax, because the Turbo mode is governed by CPU C-states.

 

[Mjölnir]

ports-mgmt/psearch shows psearch -s intel: sysutils/turbostat & sysutils/i7z. Both calculate the true frequency & various other runtime parameters of the CPU.

 

[trev]

It can be enabled with performance_cpu_freq="HIGH" in /etc/rc.conf

Alternatively, in /etc/rc.conf:

powerd_enable="YES"
powerd_flags="-a adaptive -n adaptive -p 500 -N"

works for my Mac minis (Intel).