3O设置CPU为性能模式(C2338设置主频2100MHz)_美国VPS

以下是Centos7 的代码,其他系统自行搜索测试

# yum install -y cpupowerutils;
# cpupower frequency-info
# cat /proc/cpuinfo
cpupower frequency-set -g performance

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效果

内蒙古网友:Debian

apt install cpufrequtils

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编辑 /etc/default/cpufrequtils 如不存在则创建，

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添加 GOVERNOR="performance"

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systemctl restart cpufrequtils

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之前：

cpufrequtils 008: cpufreq-info (C) Dominik Brodowski 2004-2009
Report errors and bugs to [email protected], 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: 1.40 GHz – 2.10 GHz
available frequency steps: 2.10 GHz, 1.80 GHz, 1.60 GHz, 1.40 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 1.40 GHz and 2.10 GHz.
The governor "ondemand" may decide which speed to use
within this range.
current CPU frequency is 1.40 GHz (asserted by call to hardware).
cpufreq stats: 2.10 GHz:100.00%, 1.80 GHz:0.00%, 1.60 GHz:0.00%, 1.40 GHz:0.00% (65)

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之后

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: 1.40 GHz – 2.10 GHz
available frequency steps: 2.10 GHz, 1.80 GHz, 1.60 GHz, 1.40 GHz
available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil
current policy: frequency should be within 1.40 GHz and 2.10 GHz.
The governor "performance" may decide which speed to use
within this range.
current CPU frequency is 2.10 GHz (asserted by call to hardware).
cpufreq stats: 2.10 GHz:99.99%, 1.80 GHz:0.00%, 1.60 GHz:0.00%, 1.40 GHz:0.01% (461)

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青海网友:
楼上一些人不了解呀

performance 运行于最大频率
powersave 运行于最小频率
userspace 运行于用户指定的频率
ondemand 按需快速动态调整CPU频率，一有cpu计算量的任务，就会立即达到最大频率运行，空闲时间增加就降低频率
conservative 按需快速动态调整CPU频率，比 ondemand 的调整更保守
schedutil 基于调度程序调整 CPU 频率

机子默认一般运行于ondemand模式，会有中断开销，睿频也是有开销的，特别是对于低端cpu。

调整到performance模式，就是一直以最大频率运行。

其实无需安装软件包，直接创建一个udev规则
/etc/udev/rules.d/50-scaling-governor.rules

SUBSYSTEM=="module", ACTION=="add", KERNEL=="acpi_cpufreq", RUN+=" /bin/sh -c ‘ \
echo performance > /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor ‘ "

河北网友:没什么意义吧自动睿频
陕西网友:怎么也比单核vps强吧
香港网友:收藏了，希望不会让CPU着火哈~
江西网友:Debian怎么搞
上海网友:求debian的方法。
西藏网友:
正解自动睿频没用
海南网友:现实是反过来

单核VPS怎么也比这个U强

当然长期满负载，应该还是C2338强，毕竟是杜甫
广东网友:现实是反过来

单核VPS怎么也比这个U强

当然长期满负载，应该还是C2338强，毕竟是杜甫
贵州网友:战略性mark，这个机器美滋滋
云南网友:开了，等烧掉的那一天
上海网友:我的也是 1750，不知道哪里设置不对
宁夏网友:
我这也是显示的1750
山东网友:2100成功…
湖南网友:
看错了吧 cpu MHz才是
lscpu | grep ‘CPU MHz’
江苏网友:debian只有1750
model name    : Intel(R) Atom(TM) CPU  C2338  @ 1.74GHz
stepping       : 8
microcode    : 0x125
cpu MHz       : 1750.001

海南网友:我是centos，启用后最高也只有1750

澳门网友:难道还有cpu体质的区别？
或者是我用的秋水的一键脚本更新了内核和启用了bbr导致cpu支持不好？

内蒙古网友:难道还有cpu体质的区别？
或者是我用的秋水的一键脚本更新了内核和启用了bbr导致cpu支持不好？

海南网友:我也是开了bbr
重庆网友:+1
云南网友:这个不怕被ol ban 机吗….
吉林网友:看来就是更新内核使得cpu的某个驱动挂了
黑龙江网友:独服随便整呀只要不影响别人被发邮件再问客服
四川网友:centos只能到1700，debian可以到2100
广西网友:通过对比试验确定，centos7如果使用一键脚本更换内核并更新后，它的最高频率只能是1750，可能是内核兼容性问题
江苏网友:mark ~~~
陕西网友:这种模式调整只适用于debian，上次在Let论坛看到的，部分系统，并不生效
山东网友:这种模式调整只适用于debian，上次在Let论坛看到的，部分系统，并不生效
青海网友:其实是BIOS限制…如果BIOS不限制，I家的CPU睿频还用调吗？至于有没有睿频，可以用i7z看
辽宁网友:Mark
浙江网友:效果还是很明显的。谢谢啦
西藏网友:不错不错，已经成功

内蒙古网友: no or unknown cpufreq driver is active on this CPU
  CPUs which run at the same hardware frequency: Not Available
  CPUs which need to have their frequency coordinated by software: Not Available
  maximum transition latency:  Cannot determine or is not supported.
  hardware limits: Not Available
  available cpufreq governors: Not Available
  Unable to determine current policy
  current CPU frequency: Unable to call hardware
  current CPU frequency:  Unable to call to kernel
  boost state support:
Supported: yes
Active: yes