这是一个创建于 101 天前的主题，其中的信息可能已经有所发展或是发生改变。
analyzing CPU 23: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 23 CPUs which need to have their frequency coordinated by software: 23 maximum transition latency: 4294.55 ms. hardware limits: 2.20 GHz - 4.67 GHz available frequency steps: 3.80 GHz, 2.80 GHz, 2.20 GHz available cpufreq governors: conservative, ondemand, userspace, powersave, performance, schedutil current policy: frequency should be within 2.20 GHz and 3.80 GHz. The governor "ondemand" may decide which speed to use within this range. current CPU frequency is 3.80 GHz (asserted by call to hardware). cpufreq stats: 3.80 GHz:16.73%, 2.80 GHz:4.52%, 2.20 GHz:78.75% (1114)
 |
1
nightwitch 101 天前
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq
直接看数值 |
 |
2
s04 101 天前
https://www.amd.com/en/product/8436 Base Clock 3.8GHz
|
 |
3
greenskinmonster 101 天前 via Android
最低 550MHz ，用 amd-pstate
|
 |
4
morgan1freeman OP @greenskinmonster 多谢，已经用上了，之前 pve 待机太耗电了，所以想省点电，安装后确实能跑 550MHz 了，真的很好奇为啥，这个都进内核这么久了，还默认用 acpi_cpufreq ，估计 AMD 也压根没想兼容 ACPI
|
|
5
morgan1freeman OP PVE 上 尝试了很多次，最终这个配置成功了， 修改 grub linux 默认启动参数 加上
initcall_blacklist=acpi_cpufreq_init amd_pstate.shared_mem=1 amd_pstate=passive 每次修改 boot 后记得 update-initramfs -k all -u && update-grub |
Select Language