CPU 的最低可能频率是多少（在我的情况下，我有 Intel® Core™ i7-8750H CPU @ 2.20GHz × 12）
这可能是我的术语问题和重复：在英特尔 CPU 上，我可以通过运行类似的东西在运行时相对轻松地禁用涡轮增压
echo 1 > /sys/devices/system/cpu/intel_pstate/no_turbo
然后 CPU 以其基本时钟运行而不会“加速”。好消息是我不需要为此更改 BIOS/(U)EFI 设置。
AMD CPU，特别是 Zen-1 Epyc 上的等价物（就术语和命令而言）是什么？
我正在尝试以恒定（低）速度运行 CPU 以获得一致的基准测试结果。我正在尝试比较算法的不同软件实现。
我正在尝试提高戴尔 Inspiron 7460 笔记本电脑的 CPU 温度，这是这台特定机器在承受合理压力时的常见问题（小机箱、通风口放置不当、cpu 和 gpu 的单一冷却器）。Windows 允许我简单地将 i5 7200U 的最大速度从 3.1GHz 降低到 2.8GHz 或 2.5GHz，虽然我同意这不是最好的解决方案，但它对我来说很好用。
那么 Ubuntu 20.04.1 有什么办法可以做到这一点吗？另外我是 Linux 新手，终端命令对我来说通常是未知的，但我正在努力学习，而且我经常更喜欢使用它们。
我无法使用我的新笔记本电脑（配备英特尔酷睿 i7-4810MQ 四核处理器 3.7 GHz 的 HP ZBook 15 G2）来避免在 Ubuntu 20.04 上显着限制我的处理器。
它最初在 400MHz 以下开始。我尝试将 Intel-Pstate 的调控器设置更改为性能，我尝试禁用 Grub 上的调控器。我在网上找到了一堆尝试过的建议。
我最后一次尝试让我将 CPU 调控器完全切换到 acpi-cpufreq 调控器，并将其设置为性能或按需。这确实有效果，但现在它的最大频率设置为 900MHz。我尝试使用 cpufreq-set 手动更改它也没有成功。
任何帮助将不胜感激，因为我真的遇到了性能问题。是否还有其他没有此问题的 Linux 发行版？
这是我目前的频率
这是当前的 cpufreq-info 输出，看看它是如何设置为只有 900MHz
cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to cpufreq@vger.kernel.org, please.
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: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.20 GHz, 2.10 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.50 GHz, 1.40 GHz, 1.20 GHz, 1.10 GHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 900 MHz and 900 MHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 900 MHz (asserted by call to hardware).
cpufreq stats: 2.80 GHz:0.03%, 2.80 GHz:0.00%, 2.70 GHz:0.00%, 2.50 GHz:0.00%, 2.40 GHz:0.00%, 2.20 GHz:0.00%, 2.10 GHz:0.00%, 1.90 GHz:0.04%, 1.80 GHz:0.04%, 1.70 GHz:0.04%, 1.50 GHz:0.05%, 1.40 GHz:0.03%, 1.20 GHz:0.03%, 1.10 GHz:0.04%, 900 MHz:66.41%, 800 MHz:33.30% (1746)
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: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.20 GHz, 2.10 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.50 GHz, 1.40 GHz, 1.20 GHz, 1.10 GHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 900 MHz and 900 MHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 900 MHz (asserted by call to hardware).
cpufreq stats: 2.80 GHz:0.03%, 2.80 GHz:0.00%, 2.70 GHz:0.00%, 2.50 GHz:0.00%, 2.40 GHz:0.00%, 2.20 GHz:0.00%, 2.10 GHz:0.00%, 1.90 GHz:0.04%, 1.80 GHz:0.04%, 1.70 GHz:0.04%, 1.50 GHz:0.05%, 1.40 GHz:0.03%, 1.20 GHz:0.03%, 1.10 GHz:0.04%, 900 MHz:66.41%, 800 MHz:33.29% (1746)
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: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.20 GHz, 2.10 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.50 GHz, 1.40 GHz, 1.20 GHz, 1.10 GHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 900 MHz and 900 MHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 900 MHz (asserted by call to hardware).
cpufreq stats: 2.80 GHz:0.03%, 2.80 GHz:0.00%, 2.70 GHz:0.00%, 2.50 GHz:0.00%, 2.40 GHz:0.00%, 2.20 GHz:0.00%, 2.10 GHz:0.00%, 1.90 GHz:0.04%, 1.80 GHz:0.04%, 1.70 GHz:0.04%, 1.50 GHz:0.05%, 1.40 GHz:0.03%, 1.20 GHz:0.03%, 1.10 GHz:0.04%, 900 MHz:66.41%, 800 MHz:33.30% (1746)
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: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.20 GHz, 2.10 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.50 GHz, 1.40 GHz, 1.20 GHz, 1.10 GHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 900 MHz and 900 MHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 900 MHz (asserted by call to hardware).
cpufreq stats: 2.80 GHz:0.03%, 2.80 GHz:0.00%, 2.70 GHz:0.00%, 2.50 GHz:0.00%, 2.40 GHz:0.00%, 2.20 GHz:0.00%, 2.10 GHz:0.00%, 1.90 GHz:0.04%, 1.80 GHz:0.04%, 1.70 GHz:0.04%, 1.50 GHz:0.05%, 1.40 GHz:0.03%, 1.20 GHz:0.03%, 1.10 GHz:0.04%, 900 MHz:66.41%, 800 MHz:33.30% (1746)
analyzing CPU 4:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 4
CPUs which need to have their frequency coordinated by software: 4
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.20 GHz, 2.10 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.50 GHz, 1.40 GHz, 1.20 GHz, 1.10 GHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 900 MHz and 900 MHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 900 MHz (asserted by call to hardware).
cpufreq stats: 2.80 GHz:0.03%, 2.80 GHz:0.00%, 2.70 GHz:0.00%, 2.50 GHz:0.00%, 2.40 GHz:0.00%, 2.20 GHz:0.00%, 2.10 GHz:0.00%, 1.90 GHz:0.04%, 1.80 GHz:0.04%, 1.70 GHz:0.04%, 1.50 GHz:0.05%, 1.40 GHz:0.03%, 1.20 GHz:0.03%, 1.10 GHz:0.04%, 900 MHz:66.40%, 800 MHz:33.30% (1746)
analyzing CPU 5:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 5
CPUs which need to have their frequency coordinated by software: 5
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.20 GHz, 2.10 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.50 GHz, 1.40 GHz, 1.20 GHz, 1.10 GHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 900 MHz and 900 MHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 900 MHz (asserted by call to hardware).
cpufreq stats: 2.80 GHz:0.03%, 2.80 GHz:0.00%, 2.70 GHz:0.00%, 2.50 GHz:0.00%, 2.40 GHz:0.00%, 2.20 GHz:0.00%, 2.10 GHz:0.00%, 1.90 GHz:0.04%, 1.80 GHz:0.04%, 1.70 GHz:0.04%, 1.50 GHz:0.05%, 1.40 GHz:0.03%, 1.20 GHz:0.03%, 1.10 GHz:0.04%, 900 MHz:66.40%, 800 MHz:33.30% (1746)
analyzing CPU 6:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 6
CPUs which need to have their frequency coordinated by software: 6
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.20 GHz, 2.10 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.50 GHz, 1.40 GHz, 1.20 GHz, 1.10 GHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 900 MHz and 900 MHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 900 MHz (asserted by call to hardware).
cpufreq stats: 2.80 GHz:0.03%, 2.80 GHz:0.00%, 2.70 GHz:0.00%, 2.50 GHz:0.00%, 2.40 GHz:0.00%, 2.20 GHz:0.00%, 2.10 GHz:0.00%, 1.90 GHz:0.04%, 1.80 GHz:0.04%, 1.70 GHz:0.04%, 1.50 GHz:0.05%, 1.40 GHz:0.03%, 1.20 GHz:0.03%, 1.10 GHz:0.04%, 900 MHz:66.41%, 800 MHz:33.29% (1746)
analyzing CPU 7:
driver: acpi-cpufreq
CPUs which run at the same hardware frequency: 7
CPUs which need to have their frequency coordinated by software: 7
maximum transition latency: 10.0 us.
hardware limits: 800 MHz - 2.80 GHz
available frequency steps: 2.80 GHz, 2.80 GHz, 2.70 GHz, 2.50 GHz, 2.40 GHz, 2.20 GHz, 2.10 GHz, 1.90 GHz, 1.80 GHz, 1.70 GHz, 1.50 GHz, 1.40 GHz, 1.20 GHz, 1.10 GHz, 900 MHz, 800 MHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 900 MHz and 900 MHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 900 MHz (asserted by call to hardware).
cpufreq stats: 2.80 GHz:0.03%, 2.80 GHz:0.00%, 2.70 GHz:0.00%, 2.50 GHz:0.00%, 2.40 GHz:0.00%, 2.20 GHz:0.00%, 2.10 GHz:0.00%, 1.90 GHz:0.04%, 1.80 GHz:0.04%, 1.70 GHz:0.04%, 1.50 GHz:0.05%, 1.40 GHz:0.03%, 1.20 GHz:0.03%, 1.10 GHz:0.04%, 900 MHz:66.40%, 800 MHz:33.31% (1746)
顶部的结果
top - 15:25:35 up 18 min, 1 user, load average: 2.08, 1.00, 0.59
Tasks: 347 total, 3 running, 344 sleeping, 0 stopped, 0 zombie
%Cpu(s): 17.6 us, 3.1 sy, 0.0 ni, 77.3 id, 0.0 wa, 0.0 hi, 2.0 si, 0.0 st
MiB Mem : 15928.5 total, 12274.0 free, 2032.8 used, 1621.7 buff/cache
MiB Swap: 2048.0 total, 2048.0 free, 0.0 used. 13505.7 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4114 gary 20 0 2786772 412368 193164 R 103.9 2.5 0:52.76 Web Content
2880 gary 20 0 4178028 302196 108200 S 26.6 1.9 0:25.29 gnome-shell
2675 root 20 0 177540 50868 35228 R 12.9 0.3 0:08.97 Xorg
3855 gary 20 0 497652 236072 151040 S 9.9 1.4 0:07.00 GPU Process
3820 gary 20 0 3277312 296956 149340 S 8.6 1.8 0:27.65 MainThread
3998 gary 20 0 970876 51648 39000 S 5.6 0.3 0:02.07 gnome-terminal-
1543 root -51 0 0 0 0 S 4.3 0.0 0:06.06 irq/38-nvidia
914 root 20 0 85048 2376 1980 S 1.7 0.0 0:11.86 cpufreqd
4274 gary 20 0 20712 4068 3148 R 1.3 0.0 0:00.10 top
2808 gary 20 0 162884 6508 5852 S 0.9 0.0 0:00.12 at-spi2-registr
410 root 19 -1 248028 170684 168660 S 0.4 1.0 0:30.93 systemd-journal
792 root 20 0 2540 780 716 S 0.4 0.0 0:00.46 acpid
852 syslog 20 0 224324 5456 3632 S 0.4 0.0 0:04.93 rsyslogd
1 root 20 0 168304 12372 8588 S 0.0 0.1 3:43.97 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_gp
4 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_par_gp
6 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/0:0H-kblockd
9 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 mm_percpu_wq
10 root 20 0 0 0 0 S 0.0 0.0 0:00.08 ksoftirqd/0
11 root 20 0 0 0 0 I 0.0 0.0 0:00.69 rcu_sched
12 root rt 0 0 0 0 S 0.0 0.0 0:00.03 migration/0
13 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/0
14 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0
top - 15:26:14 up 19 min, 1 user, load average: 1.74, 1.05, 0.63
Tasks: 349 total, 2 running, 347 sleeping, 0 stopped, 0 zombie
%Cpu(s): 14.1 us, 1.5 sy, 0.0 ni, 83.2 id, 0.0 wa, 0.0 hi, 1.2 si, 0.0 st
MiB Mem : 15928.5 total, 12302.2 free, 2002.4 used, 1623.9 buff/cache
MiB Swap: 2048.0 total, 2048.0 free, 0.0 used. 13535.9 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
4114 gary 20 0 2797012 393096 193164 R 108.6 2.4 1:34.14 Web Content
3855 gary 20 0 497652 236072 151040 S 8.6 1.4 0:10.51 GPU Process
3820 gary 20 0 3277312 295576 150120 S 6.6 1.8 0:31.47 MainThread
1543 root -51 0 0 0 0 S 5.3 0.0 0:08.28 irq/38-nvidia
2675 root 20 0 177540 50868 35228 S 2.3 0.3 0:11.07 Xorg
3998 gary 20 0 971560 52260 39000 S 2.0 0.3 0:03.82 gnome-terminal-
2880 gary 20 0 4178028 302340 108200 S 1.3 1.9 0:27.12 gnome-shell
914 root 20 0 85048 2376 1980 S 1.0 0.0 0:12.53 cpufreqd
4274 gary 20 0 20712 4068 3148 R 0.7 0.0 0:00.38 top
1 root 20 0 168304 12372 8588 S 0.3 0.1 3:44.05 systemd
294 root 20 0 0 0 0 I 0.3 0.0 0:00.39 kworker/u16:3-events_power_efficient
410 root 19 -1 248028 171144 169120 S 0.3 1.0 0:31.10 systemd-journal
790 root 20 0 246884 7396 6500 S 0.3 0.0 0:00.47 accounts-daemon
852 syslog 20 0 224324 5456 3632 S 0.3 0.0 0:05.01 rsyslogd
3807 root 20 0 0 0 0 I 0.3 0.0 0:00.06 kworker/0:4-events
2 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kthreadd
3 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_gp
4 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 rcu_par_gp
6 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/0:0H-kblockd
9 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 mm_percpu_wq
10 root 20 0 0 0 0 S 0.0 0.0 0:00.08 ksoftirqd/0
11 root 20 0 0 0 0 I 0.0 0.0 0:00.71 rcu_sched
12 root rt 0 0 0 0 S 0.0 0.0 0:00.03 migration/0
13 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/0
14 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/0
15 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/1
16 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/1
17 root rt 0 0 0 0 S 0.0 0.0 0:00.06 migration/1
18 root 20 0 0 0 0 S 0.0 0.0 0:00.07 ksoftirqd/1
20 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/1:0H-kblockd
21 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/2
22 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/2
23 root rt 0 0 0 0 S 0.0 0.0 0:00.09 migration/2
24 root 20 0 0 0 0 S 0.0 0.0 0:00.10 ksoftirqd/2
25 root 20 0 0 0 0 I 0.0 0.0 0:00.67 kworker/2:0-cgroup_destroy
26 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/2:0H-kblockd
27 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/3
28 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/3
29 root rt 0 0 0 0 S 0.0 0.0 0:00.08 migration/3
30 root 20 0 0 0 0 S 0.0 0.0 0:00.05 ksoftirqd/3
32 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/3:0H-kblockd
33 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/4
34 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/4
35 root rt 0 0 0 0 S 0.0 0.0 0:00.09 migration/4
36 root 20 0 0 0 0 S 0.0 0.0 0:00.08 ksoftirqd/4
37 root 20 0 0 0 0 I 0.0 0.0 0:00.38 kworker/4:0-events
38 root 0 -20 0 0 0 I 0.0 0.0 0:00.00 kworker/4:0H-kblockd
39 root 20 0 0 0 0 S 0.0 0.0 0:00.00 cpuhp/5
40 root -51 0 0 0 0 S 0.0 0.0 0:00.00 idle_inject/5
ps auxc | 的结果 grep -i 热
root 185 0.0 0.0 0 0 ? I< 15:07 0:00 acpi_thermal_pm
free -h 的结果
total used free shared buff/cache available
Mem: 15Gi 2.0Gi 11Gi 80Mi 1.6Gi 13Gi
Swap: 2.0Gi 0B 2.0Gi
sudo turbostat --Summary --quiet --show Busy%,Bzy_MHz,PkgTmp,PkgWatt,GFXWatt,IRQ --interval 6 结果
Busy% Bzy_MHz IRQ PkgTmp PkgWatt GFXWatt
19.69 866 11218 45 10.86 0.00
19.75 866 10087 44 11.01 0.00
20.24 864 32081 44 10.98 0.00
19.89 865 9915 45 10.88 0.00
19.57 866 9581 44 10.84 0.00
19.51 867 28248 44 10.80 0.00
19.03 866 8652 45 10.77 0.00
19.19 867 29111 45 10.75 0.00
21.04 867 11219 45 10.92 0.00
21.17 870 10631 46 10.92 0.00
19.42 866 29364 45 10.81 0.00
19.50 867 8938 46 10.84 0.00
21.07 868 10832 44 10.90 0.00
19.96 867 30598 45 10.84 0.00
19.36 867 9359 45 10.83 0.00
20.50 868 52384 46 10.86 0.00
21.44 868 12888 46 10.90 0.00
19.73 800 1079 46 10.55 0.00
传感器的结果
BAT0-acpi-0
Adapter: ACPI interface
in0: 15.98 V
curr1: 0.00 A
coretemp-isa-0000
Adapter: ISA adapter
Package id 0: +40.0°C (high = +84.0°C, crit = +100.0°C)
Core 0: +40.0°C (high = +84.0°C, crit = +100.0°C)
Core 1: +39.0°C (high = +84.0°C, crit = +100.0°C)
Core 2: +37.0°C (high = +84.0°C, crit = +100.0°C)
Core 3: +38.0°C (high = +84.0°C, crit = +100.0°C)
acpitz-acpi-0
Adapter: ACPI interface
temp1: +40.0°C (crit = +128.0°C)
temp2: +40.0°C (crit = +128.0°C)
temp3: +85.0°C (crit = +128.0°C)
temp4: +85.0°C (crit = +128.0°C)
temp5: +25.0°C (crit = +128.0°C)
temp6: +127.0°C (crit = +128.0°C)
来自 sysctl vm.swappiness 的结果
vm.swappiness = 60
结果来自 dpkg -l *freq* | grep ii
ii cpufreqd 2.4.2-2ubuntu3 amd64 fully configurable daemon for dynamic frequency and voltage scaling
ii cpufrequtils 008-1.1 amd64 utilities to deal with the cpufreq Linux kernel feature
ii indicator-cpufreq 0.2.2-0ubuntu3 all CPU frequency scaling indicator
ii libcpufreq0 008-1.1 amd64 shared library to deal with the cpufreq Linux kernel feature
ls -al /usr/share/gnome-shell/extensions 的结果
total 20
drwxr-xr-x 5 root root 4096 Apr 23 03:35 .
drwxr-xr-x 7 root root 4096 Aug 18 14:29 ..
drwxr-xr-x 2 root root 4096 Aug 19 15:00 desktop-icons@csoriano
drwxr-xr-x 3 root root 4096 Apr 23 03:35 ubuntu-appindicators@ubuntu.com
drwxr-xr-x 3 root root 4096 Jul 30 16:43 ubuntu-dock@ubuntu.com
任何帮助将不胜感激，机器实际上无法使用这么低的速度。
新手来了 我有一台戴尔 Inspiron 灵越 3442，它遇到了“CPU 卡在 800Mhz”的问题。在 Windows 中，我曾经在每次启动时运行 ThrottleStop 并禁用 BD PROCHOT ......所以我最近安装了 Ubuntu 并学会了用这个答案中的一组命令来解决这个问题：
https://askubuntu.com/a/1192949/1053161
哪个是 ：
sudo cpufreq-set -c 0 -g performance
sudo cpufreq-set -c 1 -g performance
sudo cpufreq-set -c 2 -g performance
sudo cpufreq-set -c 3 -g performance
sudo modprobe msr
sudo wrmsr 0x1FC 17422
这些完全解决了我的问题。现在我想制作一个可以在启动/登录后自动运行的脚本。实现这一目标的最简单方法是什么？
提前致谢！
计算机需要随机连续两次启动才能启动。
这是发生的事情：
在安装
indicator-cpufreq和运行openssl speed之后turbostat，我需要两次启动来启动 Ubuntu。- 所以我删除了它，但我在第一次启动时收到“内核恐慌”消息，在第二次启动时收到正常登录消息
因此，我清除了 indicator-cpufreq ：
sudo apt-get purge --auto-remove indicator-cpufreq然后，我仍然需要两次引导，但第一次没有内核恐慌消息了。
之后，我重新安装了 indicator-cpufreq 并随机：
- 当系统找到声卡时冻结屏幕
- 系统发现网络连接时冻结屏幕
- 内核恐慌
- 在消息“A job is running for...”之后第一次启动停止了一点
最后，我再次清除了 indicator-cpufreq。现在第一次启动在消息“A job is running for...”之后停止了一点，它围绕着它找到了网络连接或声卡的消息。
引人注目：
- 当消息“A job is running for...”前面有 (x of 6) 时，似乎总是有错误
- 当它前面有 (x of 5) 时，启动过程似乎停止并重新启动。
- 当它前面有 (x of 4) 时，引导过程似乎以登录屏幕结束。
此外，我的 BIOS 坏了：（来自 dmesg）
[ 0.000000] ------------[ cut here ]------------
[ 0.000000] Your BIOS is broken; DMAR reported at address fed90000 returns all ones!
BIOS vendor: Hewlett-Packard; Ver: 786F1 v01.24; Product Version:
[ 0.000000] WARNING: CPU: 0 PID: 0 at /build/linux-S9wgEU/linux-4.15.0/drivers/iommu/dmar.c:848 warn_invalid_dmar.part.11+0x55/0x70
[ 0.000000] Modules linked in:
[ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 4.15.0-49-generic #53-Ubuntu
[ 0.000000] Hardware name: Hewlett-Packard HP Compaq dc7800 Convertible Minitower/0AACh, BIOS 786F1 v01.24 03/18/2008
[ 0.000000] EIP: warn_invalid_dmar.part.11+0x55/0x70
[ 0.000000] EFLAGS: 00210092 CPU: 0
[ 0.000000] EAX: 0000008b EBX: c7b6b6b5 ECX: 00000080 EDX: 00000000
[ 0.000000] ESI: fed90000 EDI: 00000000 EBP: c7c13ed0 ESP: c7c13ea0
[ 0.000000] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
[ 0.000000] CR0: 80050033 CR2: 00000000 CR3: 07e24000 CR4: 000006b0
[ 0.000000] Call Trace:
[ 0.000000] dmar_validate_one_drhd+0xc9/0x140
[ 0.000000] dmar_walk_remapping_entries+0x92/0x1e0
[ 0.000000] detect_intel_iommu+0x58/0xd7
[ 0.000000] ? xen_swiotlb_init+0x3f0/0x3f0
[ 0.000000] pci_iommu_alloc+0x45/0x5f
[ 0.000000] mem_init+0x28/0x204
[ 0.000000] start_kernel+0x217/0x438
[ 0.000000] i386_start_kernel+0xa1/0xa5
[ 0.000000] startup_32_smp+0x164/0x168
[ 0.000000] Code: 00 00 00 e8 9e db 1a 00 89 45 f0 b8 01 00 00 00 e8 91 db 1a 00 8b 4d ec 8b 55 f0 51 52 50 53 57 56 68 e4 ad b6 c7 e8 2b 8d af ff <0f> 0b 83 c4 1c 8d 65 f4 5b 5e 5f 5d c3 8d b4 26 00 00 00 00 8d
[ 0.000000] ---[ end trace 0f18a8dcfe7fc25e ]---
我最近在 HP ProBook 430 G3 上安装了 Ubuntu 19.04 并发现了以下问题。插入交流电时电池不会充电，直到电量低于 15% 或更低，有时我必须拔下插头并插入几次，直到它开始充电。此外，当使用电池供电时，性能很差，非常糟糕。我认为这与CPU缩放或其他东西有关。首先，我认为我的安装有问题，所以我删除了所有内容并安装了 Lubuntu 19.04，但出现了同样的问题。
我想在电池供电时禁用 CPU 缩放，并在交流电时一直为电池充电，而不仅仅是在电量低于某个阈值时。
你能帮我做吗？谢谢！
更新 电池放电至 45%，然后插入电源线。1 小时后，电池电量降至 3%，令我惊讶的是它根本没有充电。我不得不拔掉插头并重新插入 5 次才能开始工作。这变得非常令人沮丧。
当我做一些使 CPU 达到峰值的事情时，它似乎会限制 CPU 以防止过热。这可以。但是，当我停止、完成或关闭推动 CPU 的程序或进程时，似乎节流从未解除。
我的处理器上限为 800Mhz，不会超过。
我努力了：
- 重新插入电源线。它什么也没改变。
- 重新启动计算机。这解决了问题，但我不想每次都这样做。
自然很少有应用程序和程序实际上会导致这种情况发生。但是当我玩游戏时，就会发生这种情况。
我的电脑是华硕 UX550VE，配备 i7700、16gb 内存和 1050ti，我正在运行 Ubuntu 16.04 LTS
这是什么原因造成的，我该如何补救？每次发生这种情况时都必须重新启动，这很烦人。
我在联想笔记本电脑上有 Kubuntu 18.10 和 KDE Plasma 5.14.4。
是否有 CPU 监视器小部件以 GHz 显示 CPU 频率？
我想要以 GHz 为单位从系统托盘中的小部件进行实时监控。
如果可能，如何使 Psensor 以 GHz 或类似的方式显示 CPU 频率？
我想从系统托盘监视 CPU 频率（以 GHz 为单位），并且不想像副本那样以百分比监视 CPU 使用率。
最近我注意到我的 CPU 大部分时间都处于高频状态，即使负载很小。
它是一个 i5-7300HQ 处理器，应该使用 800 MHz 和 2.5 GHz 之间的频率（3.5 GHz 与 Turbo Boost）。
现在即使负载约为 2-8%，我看到的频率通常在 2.6 到 3.2 GHz 之间，这意味着 CPU 几乎总是 Turbo Boosting。
之前它总是 900 - 1200 MHz。
缩放调节器设置为省电：
$ cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
powersave
powersave
powersave
powersave
在/etc/default/grub我有一行：
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash intel_pstate=disable scsi_mod.scan=sync"
在/etc/default/cpufrequtils：
GOVERNOR="powersave"
没有/sys/devices/system/cpu/intel_pstate/目录
我的系统规格是：
- 笔记本电脑：HP Pavilion - 15-bc203nw
- 操作系统：Ubuntu (Xubuntu) 18.04.1 LTS
- CPU：英特尔酷睿 i5-7300HQ
编辑
在@WinEunuuchs2Unix 提出建议后，我再次获得了/sys/devices/system/cpu/intel_pstate/目录。
键入以下内容：
cd /sys/devices/system/cpu/cpu0/cpufreq && paste <(ls *) <(cat *)
给出输出：
affected_cpus 0
cpuinfo_max_freq 3500000
cpuinfo_min_freq 800000
cpuinfo_transition_latency 0
energy_performance_available_preferences default performance balance_performance balance_power power
energy_performance_preference balance_performance
related_cpus 0
scaling_available_governors performance powersave
scaling_cur_freq 3236541
scaling_driver intel_pstate
scaling_governor performance
scaling_max_freq 3500000
scaling_min_freq 3500000
scaling_setspeed <unsupported>
我该如何设置它powersave（只是在scaling_governor文件中更改它不会做任何事情）。