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2.77 KB, 下载次数: 1, 下载积分: 灯泡 -1 , 经验 -1
2.查看cpu：sudo cpufreq-info （本命令从内核/硬件中收集并报告CPU频率信息）
cpufreq-set -g powersave-c 0
cpufreq-set -g powersave-c 1
后 再查看 显示
analyzing CPU 0:
driver: cpufreq-dt
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 0 1 2 3
maximum transition latency: 182 us.
hardware limits: 408 MHz - 1.99 GHz
available frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performance
current policy: frequency should be within 408 MHz and 1.99 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency is 408 MHz (asserted by call to hardware).
analyzing CPU 1:
driver: cpufreq-dt
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 0 1 2 3
maximum transition latency: 182 us.
hardware limits: 408 MHz - 1.99 GHz
available frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performance
current policy: frequency should be within 408 MHz and 1.99 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency is 408 MHz (asserted by call to hardware).
analyzing CPU 2:
driver: cpufreq-dt
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 0 1 2 3
maximum transition latency: 182 us.
hardware limits: 408 MHz - 1.99 GHz
available frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performance
current policy: frequency should be within 408 MHz and 1.99 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency is 408 MHz (asserted by call to hardware).
analyzing CPU 3:
driver: cpufreq-dt
CPUs which run at the same hardware frequency: 0 1 2 3
CPUs which need to have their frequency coordinated by software: 0 1 2 3
maximum transition latency: 182 us.
hardware limits: 408 MHz - 1.99 GHz
available frequency steps: 408 MHz, 600 MHz, 816 MHz, 1.10 GHz, 1.42 GHz, 1.61 GHz, 1.80 GHz, 1.99 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, interactive, performance
current policy: frequency should be within 408 MHz and 1.99 GHz.
The governor "powersave" may decide which speed to use
within this range.
current CPU frequency is 408 MHz (asserted by call to hardware).
但是 外接测试电流器 测量 还是无变化，关闭cpu也无变化 请问改如何降频
2.77 KB, 下载次数: 1, 下载积分: 灯泡 -1 , 经验 -1
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