System/cpu の履歴(No.3)

• 履歴一覧
• 差分 を表示
• 現在との差分 を表示
• ソース を表示
• System/cpu へ行く。
  • 1 (2019-06-10 (月) 01:59:05)
  • 2 (2020-09-24 (木) 20:25:17)
  • 3 (2021-03-05 (金) 19:32:06)

目次†

CPUの監視†

温度・ファン回転数をモニタする†

パッケージ†

• debian では、以下のパッケージを使用する
  • lm-sensors
  • libsensors4 （それぞれのアーキテクチャに分かれている）
  • xsensors （Xのグラフィカルな画面で表示させたい場合に使用）

実行†

• 以下で確認が出来る：

  $ sensors
  acpitz-virtual-0
  Adapter: Virtual device
  temp1:        +44.0°C  (crit = +127.0°C)
  temp2:        +40.0°C  (crit = +104.0°C)
  
  thinkpad-isa-0000
  Adapter: ISA adapter
  fan1:           0 RPM
  temp1:        +44.0°C  
  temp2:        +41.0°C  
  temp3:            N/A  
  temp4:        +45.0°C  
  temp5:        +32.0°C  
  temp6:            N/A  
  temp7:        +31.0°C  
  temp8:            N/A  
  temp9:        +45.0°C  
  temp10:       +41.0°C  
  temp11:           N/A  
  temp12:           N/A  
  temp13:           N/A  
  temp14:           N/A  
  temp15:           N/A  
  temp16:           N/A  
  
  coretemp-isa-0000
  Adapter: ISA adapter
  Core 0:       +40.0°C  (high = +105.0°C, crit = +105.0°C)
  Core 1:       +40.0°C  (high = +105.0°C, crit = +105.0°C)

Core i7, i5, i3 CPU の情報をモニタリングする†

• i7z コマンドを実行する
• 出力例

  $ i7z
  Cpu speed from cpuinfo 2803.00Mhz
  cpuinfo might be wrong if cpufreq is enabled. To guess correctly try estimating via tsc
  Linux's inbuilt cpu_khz code emulated now
  True Frequency (without accounting Turbo) 2802 MHz
    CPU Multiplier 28x || Bus clock frequency (BCLK) 100.07 MHz
  
  Socket [0] - [physical cores=4, logical cores=8, max online cores ever=4]
    TURBO ENABLED on 4 Cores, Hyper Threading ON
    Max Frequency without considering Turbo 2902.07 MHz (100.07 x [29])
    Max TURBO Multiplier (if Enabled) with 1/2/3/4 Cores is  47x/47x/41x/41x
    Real Current Frequency 2043.86 MHz [100.07 x 20.42] (Max of below)
          Core [core-id]  :Actual Freq (Mult.)      C0%   Halt(C1)%  C3 %   C6 %  Temp      VCore
          Core 1 [0]:       1901.43 (19.00x)      30.8    79.1       0       0    73      0.9974
          Core 2 [1]:       1935.70 (19.34x)      29.1    79.9       0       0    77      0.9500
          Core 3 [2]:       1906.39 (19.05x)      29.1    80.2       0       0    77      0.9674
          Core 4 [3]:       2043.86 (20.42x)      33.1    75.8       0       0    77      1.0425
  
  
  
  C0 = Processor running without halting
  C1 = Processor running with halts (States >C0 are power saver modes with cores idling)
  C3 = Cores running with PLL turned off and core cache turned off
  C6, C7 = Everything in C3 + core state saved to last level cache, C7 is deeper than C6
    Above values in table are in percentage over the last 1 sec
  [core-id] refers to core-id number in /proc/cpuinfo
  'Garbage Values' message printed when garbage values are read
    Ctrl+C to exit

CPU fan の制御†

• デバイスの確認

  # sensors-detect
  Driver `coretemp':
    * Chip `Intel digital thermal sensor' (confidence: 9)
  
  To load everything that is needed, add this to /etc/modules:
  #----cut here----
  # Chip drivers
  coretemp
  #----cut here----
  If you have some drivers built into your kernel, the list above will
  contain too many modules. Skip the appropriate ones!
  
  Do you want to add these lines automatically to /etc/modules? (yes/NO)yes
  Successful!
  
  Monitoring programs won't work until the needed modules are
  loaded. You may want to run '/etc/init.d/kmod start'
  to load them.
  
  Unloading i2c-dev... OK
  Unloading cpuid... OK

参考リンク†

• ファンスピード制御 - ArchWiki