- Surface3で使うといいかも。
cpufreq-info
- debian :
apt-get install cpufreqd cpufrequtils lm-sensors- /etc/cpufreqd.conf
- centos6 :
yum install cpupowerutils - centos7 :
yum install kernel-tools- /etc/sysconfig/cpupower
- Fedora 18 on ThinkPad X1 CarbonでCPUが常に遅い - nekop's blog
参考
CPUの温度を確認
温度を確認
$ sensors
k10temp-pci-00c3
Adapter: PCI adapter
temp1: +86.1 C (high = +70.0 C)
(crit = +100.0 C, hyst = +95.0 C)
cpupowerを使う
インストール
$ sudo pacman -Sy cpupower
CPUの情報を表示
$ sudo cpupower 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: 4.0 us.
hardware limits: 800 MHz - 1.70 GHz
available frequency steps: 1.70 GHz, 1.50 GHz, 1.20 GHz, 800 MHz
available cpufreq governors: ondemand, performance
current policy: frequency should be within 800 MHz and 1.70 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 1.50 GHz (asserted by call to hardware).
boost state support:
Supported: no
Active: no
Boost States: 0
Total States: 4
Pstate-P0: 1700MHz
Pstate-P1: 1500MHz
Pstate-P2: 1200MHz
Pstate-P3: 800MHz
hardware limits: 800 MHz - 1.70 GHz
この値の間で設定すればよい。
最大クロック周波数を800Mhzにする場合
sudo cpupower frequency-set -u 800MHz
現在のCPU周波数を確認
$ grep MHz /proc/cpuinfo
cpu MHz : 800.000
cpu MHz : 800.000
cpu MHz : 800.000
cpu MHz : 800.000
これで温度が下がるといいな