但是最近才发现: 当我们的cpufreq driver = intel_pstate时, powersave其实更像是以前的ondemand/schedutil, 即根据实际情况, 动态调整power和performance之间的关系, 而不是死板地运行在最低频率. zhiwei@zhiwei-pc:~$ cat/sys/devices/system/cpu/cpu0/cpufreq/scaling_driver intel_pstate zhiwei@zhiwei-pc:~...
这个概念就是指的是 P-State,指的是让 CPU 以多种不同的时钟频率和电压配置运行。 Linux 内核中用CPUFreq子系统支持 CPU 的性能缩放,它包含了 3 个层次的代码: the core, scaling governors 和 scaling drivers。 the core,提供了公共的用户接口和基础代码,定义了基本框架。 scaling governors, 实现估计 CPU ...
* Stores the per cpu model P state limits and current P state. */ struct pstate_data { int current_pstate; int min_pstate; int max_pstate; int max_pstate_physical; int scaling; int turbo_pstate; unsigned int max_freq; unsigned int turbo_freq; ...
cpupower frequency-set -g performance 运行cpupowe命令检查,发现CPU的驱动为acpi-cpufreq,能够正常睿频的节点为intel_pstate。 异常节点运行命令:cpupower frequency-info analyzing CPU 0: driver: acpi-cpufreq CPUs which run at the same hardware frequency: 0 ...
出于这个原因，CPUFreq允许scaling drivers绕过scaling governors并实现自己的scaling algorithm。intel_pstate...
def pktPrint(pkt): if pkt.haslayer(Dot11Beacon): print '[+] Detected 802.11 Beacon Frame'...
This driver is Intel-only so loading on anything which is not Intel is pointless. Prevent it from doing so. While at it, correct the "not supported" print statement to say CPU "model" which is what that test does. Fixes: 076b862 (cpufreq: intel_pstate: Add reasons for failure and ...
If I enable the turbo-boost in BIOS, it seems that cpufreq driver cannot control cpu1's frequency very accurately. Then, I looked into the code in intel_pstate.c and found it used the function of "HWP". Now I have several questions that confuse me a lot and ...
cat /sys/devices/system/cpu/cpu*/cpufreq/scaling_driver此命令将会返回"intel_pstate". 。另外一种检查方式是使用下面的命令cpupower frequency-info其输出将会是类似下面这样的信息:analyzing CPU 0: driver: intel_pstateCPUs which run at the same hardware frequency: 0 CPUs which need to have their ...
在这张表上的插入将会溢出。这是一个订单输入表，由于客户的活动，需要24小时的插入。一 ...