☰

cpuf - 用于设置 CPU 最小/最大频率的简单 Bash GUI

tag-icon • tag-icon power-management cpu 19.04 frequency
cpuf - 用于设置 CPU 最小/最大频率的简单 Bash GUI

我的 Chuwi Hi10 Pro 出现了问题。它出现在 Linux 和 Windows 中。当屏幕亮度过高或 CPU 达到 100% 时，插入电源后电池开始耗电。使用 USB 3.0 QC 充电器耗电非常慢，但我希望平板电脑能够全天候可靠地运行。

我想知道是否有一种简单的方法，最好是 GUI 或简单的 Bash 脚本，来限制 CPU（电源管理）并返回到高性能模式。

我想将它用于 Kodi 等服务；如果稍微限制一下，它可能不会扰乱视频播放。

附带的问题是，除了电池信息之外，有没有办法知道交流适配器的电流和瓦数？

答案1

cpuf - 用于设置 CPU 最小/最大频率的简单 Bash GUI

示范

在这个演示中，cpuf窗口在左侧，conky系统信息在右侧。演示的进展如下：

  • YouTube 视频正在播放时演示已开始
  • 默认 CPU 最小/最大频率为800/3500
  • 将 CPU 最小值/最大值覆盖为800/800并且 CPU 使用率跳升至 20%
  • 将 CPU 最小值/最大值覆盖为3500/3500并且 CPU 使用率下降到 10%
  • 演示循环并重新开始

cpuf-demo.gif

由于三个显示器cpuf可以出现在 10 英尺外，因此使用参数 1--geometry选项将其靠近conky：

sudo cpuf --geometry="450x450+4720+80" /home/rick/Pictures/icons/cpu-intel-128.svg
  • 参数 1--geometry为窗口宽度 x 高度 + 宽度偏移 + 高度偏移
  • 参数 2 可以是您自己的图标（在本例中为英特尔 CPU 图像），否则默认为计算机图标

cpufBash 脚本

本节要求您使用 ++Ctrl打开终端。AltT

如何设置

为了运行，cpufbash 脚本需要：

sudo apt install yad         # from the repository universe
sudo apt install coreutils   # installed by default in most distros

将cpuf脚本放入搜索路径中的根目录是最简单的方法。例如：/usr/local/bin。

要创建cpuf脚本，请使用 打开编辑器sudo -H gedit /usr/local/bin/cpuf。

  • 突出显示以下部分中的行
  • 右键单击并选择“复制”
  • 切换回编辑器
  • 右键单击并选择“粘贴”
  • 从编辑器菜单中选择“保存”，然后选择“退出”

使用 使脚本可执行sudo chmod a+x /usr/local/bin/cpuf。

cpuf代码复制到你的编辑器

#!/bin/bash

# NAME: cpuf (Pronounced SEA-PUFF)
# CALL: sudo cpuf
# PARM: $1 = --geometry=WidthxHeight+VertOffset+HorizOffset
#       $2 = Optional image icon

# DESC: Simple GUI script to set CPU Min and Max Frequency.
#       For Ask Ubuntu Question: https://askubuntu.com/q/1141605/307523
# DATE: May 12, 2019.
# UPDT: No updates yet.
# NOTE: No notes yet.

### Dependancies ###

command -v yad >/dev/null 2>&1 || { echo >&2 \
        "yad package required but it is not installed.  Aborting."; \
        exit 1; }

command -v nproc >/dev/null 2>&1 || { echo >&2 \
        "coreutils package required but it is not installed.  Aborting."; \
        exit 2; }

if [[ $(id -u) != 0 ]]; then # root powers needed to call this script
    echo >&2 Must be called with sudo powers
    exit 3
fi

# $TERM variable may be missing when called via desktop shortcut
CurrentTERM=$(env | grep TERM)
if [[ $CurrentTERM == "" ]] ; then
    notify-send --urgency=critical \
    "$0 cannot be run from GUI without TERM environment variable."
    exit 4
fi

### Program constants ###

## Yad Window parameters
# Hard code Height & Width to suit your screen resolution and scaling factor
GEOMETRY="--width 400 --height 500"
# Pass Parameter 1 with ---geometry="WidxHgt+WidOff+HgtOff" to override
[[ "$1" == --geometry=* ]] && GEOMETRY="$1"

TITLE="cpuf"
TEXT="Set CPU Min/Max Frequencies"
ICON="/usr/share/icons/Adwaita/48x48/devices/computer.png"
# Pass Parameter 2 with icon for window image
# Intel CPU comes from: https://www.gnome-look.org/p/1107932/
[[ ! -z "$2" ]] && ICON="$2"

## Virtual File System directories
      CPU0_DIR=/sys/devices/system/cpu/cpu0/cpufreq
    PSTATE_DIR=/sys/devices/system/cpu/intel_pstate
 CURR_MIN_FREQ="$CPU0_DIR/scaling_min_freq"
 CURR_MAX_FREQ="$CPU0_DIR/scaling_max_freq"
ALLOW_MIN_FREQ="$CPU0_DIR/cpuinfo_min_freq"
ALLOW_MAX_FREQ="$CPU0_DIR/cpuinfo_max_freq"

OLD_IFS=$IFS            # Save current Input File Separtor (IFS)
declare -a Arr          # Array for YAD Window input
NumCPU=$(nproc --all)   # Number of CPUs (nproc from coreutils)

### Error Message Functions ###

Abend () {
    # Abnormal Ending - Parameter 1 = message to display, Parameter 2=exit code

    yad --image "dialog-error" --image-on-top --title "$TITLE - Fatal Error" \
        "$GEOMETRY" --button=gtk-ok:0 --text "$1" 2>/dev/null
    exit "$2"
   
} # Abend

ErrMsg () {
    # Parmater 1 = message to display

    yad --image "dialog-error" --title "$TITLE - Logical Error" \
        "$GEOMETRY" --button=gtk-ok:0 --text "$1" 2>/dev/null

    fErrMsgForceContinue=true
 
} # ErrMsg

### Initialize Variables ###

InitVars () {

    [[ ! -e "$ALLOW_MIN_FREQ" ]] && Abend "$ALLOW_MIN_FREQ not found" 11
    AllowMinFreq=$(cat "$ALLOW_MIN_FREQ")
    AllowMinFreq="${AllowMinFreq::-3}"  # Chop off three decimals at end

    [[ ! -e "$ALLOW_MAX_FREQ" ]] && Abend "$ALLOW_MAX_FREQ not found" 12
    AllowMaxFreq=$(cat "$ALLOW_MAX_FREQ")
    AllowMaxFreq="${AllowMaxFreq::-3}"

    [[ ! -e "$CURR_MIN_FREQ" ]] && Abend "$CURR_MIN_FREQ not found" 13
    CurrMinFreq=$(cat "$CURR_MIN_FREQ")
    CurrMinFreq="${CurrMinFreq::-3}"
    NewMinFreq="$CurrMinFreq"

    [[ ! -e "$CURR_MAX_FREQ" ]] && Abend "$CURR_MAX_FREQ not found" 14
    CurrMaxFreq=$(cat "$CURR_MAX_FREQ")
    CurrMaxFreq="${CurrMaxFreq::-3}"
    NewMaxFreq="$CurrMaxFreq"

    if [[ -e "$PSTATE_DIR" ]] ; then
        NumPstates=$(cat "$PSTATE_DIR/num_pstates")
        if [[ $(cat "$PSTATE_DIR/no_turbo") -eq 0 ]] ; then
            TurboBoost="Enabled"
        else
            TurboBoost="Disabled"
        fi
    else
        NumPstates="Not found"
        TurboBoost="Not found"
    fi

    if [[ -e "$CPU0_DIR/scaling_governor" ]] ; then
        Governor=$(cat "$CPU0_DIR/scaling_governor")
    else
        Governor="Not found"
    fi

    if [[ -e "$CPU0_DIR/scaling_cur_freq" ]] ; then
        CurrFreq=$(cat "$CPU0_DIR/scaling_cur_freq")
        # Chop off three decimals at end
        CurrFreq="${CurrFreq::-3}"
    else
        CurrFreq="Not found"
    fi

} # InitVars

### Paint / repaint window and get new frequencies ###

GetParameters () {

    # +------------------------------------------+
    # |  cpuf - Set CPU Min/Max Frequencies      |
    # +------------------------------------------+
    # |                                          |
    # |  Turbo Boost:            Enabled         |
    # |                                          |
    # |  Number of pstates:      99              |
    # |  Speed Governor Used:    powersave       |
    # |  Current CPU0 frequency: 9999 Mhz        |
    # |                                          |
    # |  Current Minimum Freq.:  9999 Mhz        |
    # |  Current Maximum Freq.:  9999 Mhz        |
    # |                                          |
    # |  New Minimum Frequency   9999            |
    # |  New Maximum Frequency   9999            |
    # |                                          |
    # +------------------------------------------+

    IFS="|"
    Arr=($(yad "$GEOMETRY" --form \
        --title "$TITLE" --text "$TEXT" \
        --window-icon="$ICON" --image="$ICON" \
        --field="Turbo Boost:":RO "$TurboBoost" \
        --field="Number of pstates:":RO "$NumPstates" \
        --field="Speed Governor:":RO "$Governor" \
        --field="Current Frequency:":RO "$CurrFreq MHz" \
        --field="Allowable Minimum Frequency:":RO "$AllowMinFreq MHz" \
        --field="Allowable Maximum Frequency:":RO "$AllowMaxFreq MHz" \
        --field="Current Minimum Frequency:":RO "$CurrMinFreq MHz" \
        --field="Current Maximum Frequency:":RO "$CurrMaxFreq MHz" \
        --field="New Minimum Frequency" "$NewMinFreq" \
        --field="New Maximum Frequency" "$NewMaxFreq" 2>/dev/null))

    Return="$?"
    NewMinFreq="${Arr[8]}"
    NewMaxFreq="${Arr[9]}"

} # GetParameters

###################################
#            MAINLINE             #
###################################

ALL_PREFIX="/sys/devices/system/cpu/cpu"
MIN_SUFFIX="/cpufreq/scaling_min_freq"
MAX_SUFFIX="/cpufreq/scaling_max_freq"

while true ; do

    InitVars
    GetParameters
    [[ ! "$Return" -eq 0 ]] && break ; # Exit on Cancel=1 or Close Window=252

    # Sanity checks
    fErrMsgForceContinue=false
    [[ $NewMinFreq -lt $AllowMinFreq ]] && ErrMsg "Minimum frequency too low"
    [[ $NewMaxFreq -gt $AllowMaxFreq ]] && ErrMsg "Maximum frequency too high"
    [[ $NewMinFreq -gt $NewMaxFreq ]]   && ErrMsg "Minimum frequency greater than Maximum Frequency"
    [[ $fErrMsgForceContinue == true ]] && continue
    
    # Set new Min/Max frequencies
    for (( i=0 ; i<NumCPU ; i++ )) ; do
        # If New Min > Curr Max, set Max first then Min
        if [[ $NewMinFreq -gt $CurrMaxFreq ]] ; then
            echo "$NewMaxFreq""000" > "$ALL_PREFIX$i$MAX_SUFFIX"
            echo "$NewMinFreq""000" > "$ALL_PREFIX$i$MIN_SUFFIX"
        else
            echo "$NewMinFreq""000" > "$ALL_PREFIX$i$MIN_SUFFIX"
            echo "$NewMaxFreq""000" > "$ALL_PREFIX$i$MAX_SUFFIX"
        fi
    done
    

done

IFS="$OLD_IFS"
exit 0

答案2

我最近发现的最简单的方法是安装该实用程序cpupower-gui

在此处输入图片描述

无需处理 Bash 脚本或者配置文件，只需运行：

sudo apt install cpupower-gui

然后以 root 身份启动它：

sudo cpupower-gui

它的界面非常简单。请确保选中复选框All Cpus并单击“应用”，否则它不会执行太多操作！

相关内容