First, the command and it's output:
# cpupower -c all frequency-info
analyzing CPU 0:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 0
CPUs which need to have their frequency coordinated by software: 0
maximum transition latency: 10.0 us.
hardware limits: 1.20 GHz - 2.67 GHz
available frequency steps: 2.67 GHz, 2.67 GHz, 2.53 GHz, 2.40 GHz,
2.27 GHz, 2.13 GHz, 2.00 GHz, 1.87 GHz, 1.73 GHz, 1.60 GHz, 1.47 GHz,
1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, userspace, powersave,
ondemand, performance
current policy: frequency should be within 1.20 GHz and 2.67 GHz.
The governor "userspace" may decide which speed to use
within this range.
current CPU frequency is 2.67 GHz (asserted by call to hardware).
boost state support:
Supported: yes
Active: yes
2200 MHz max turbo 2 active cores
2400 MHz max turbo 1 active cores
analyzing CPU 1:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 1
CPUs which need to have their frequency coordinated by software: 1
maximum transition latency: 10.0 us.
hardware limits: 1.20 GHz - 2.67 GHz
available frequency steps: 2.67 GHz, 2.67 GHz, 2.53 GHz, 2.40 GHz,
2.27 GHz, 2.13 GHz, 2.00 GHz, 1.87 GHz, 1.73 GHz, 1.60 GHz, 1.47 GHz,
1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, userspace, powersave,
ondemand, performance
current policy: frequency should be within 1.20 GHz and 2.67 GHz.
The governor "userspace" may decide which speed to use
within this range.
current CPU frequency is 2.67 GHz (asserted by call to hardware).
boost state support:
Supported: yes
Active: yes
2200 MHz max turbo 2 active cores
2400 MHz max turbo 1 active cores
analyzing CPU 2:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 2
CPUs which need to have their frequency coordinated by software: 2
maximum transition latency: 10.0 us.
hardware limits: 1.20 GHz - 2.67 GHz
available frequency steps: 2.67 GHz, 2.67 GHz, 2.53 GHz, 2.40 GHz,
2.27 GHz, 2.13 GHz, 2.00 GHz, 1.87 GHz, 1.73 GHz, 1.60 GHz, 1.47 GHz,
1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, userspace, powersave,
ondemand, performance
current policy: frequency should be within 1.20 GHz and 2.67 GHz.
The governor "userspace" may decide which speed to use
within this range.
current CPU frequency is 2.67 GHz (asserted by call to hardware).
boost state support:
Supported: yes
Active: yes
2200 MHz max turbo 2 active cores
2400 MHz max turbo 1 active cores
analyzing CPU 3:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 3
CPUs which need to have their frequency coordinated by software: 3
maximum transition latency: 10.0 us.
hardware limits: 1.20 GHz - 2.67 GHz
available frequency steps: 2.67 GHz, 2.67 GHz, 2.53 GHz, 2.40 GHz,
2.27 GHz, 2.13 GHz, 2.00 GHz, 1.87 GHz, 1.73 GHz, 1.60 GHz, 1.47 GHz,
1.33 GHz, 1.20 GHz
available cpufreq governors: conservative, userspace, powersave,
ondemand, performance
current policy: frequency should be within 1.20 GHz and 2.67 GHz.
The governor "userspace" may decide which speed to use
within this range.
current CPU frequency is 2.67 GHz (asserted by call to hardware).
boost state support:
Supported: yes
Active: yes
2200 MHz max turbo 2 active cores
2400 MHz max turbo 1 active cores
=========================
So, question:
How can current frequency be 2.67GHz, but
turbo ferequency for one cpu running be 2.4GHz?
How can that be turbo???
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