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

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mjollnir

mjollnir

Daemon

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Messages: 1,267

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.
 

trev

Aspiring Daemon

Reaction score: 224
Messages: 933

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

Alternatively, in /etc/rc.conf:

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

works for my Mac minis (Intel).
 
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