後來發現,小弟的i5 CPU(2.5GHz)至少要超頻至2.8GHz時,才能達到354.8KHz
代碼:
[root@ArchQ ~]# vi /etc/default/cpupower
...
freq="2.8GHz"
...
重新啟動
[root@ArchQ ~]# systemctl restart cpupower.service
看看CPU是否為2.8GHz
[root@ArchQ ~]# cpupower frequency-info
[root@ArchQ ~]# cat /proc/cpuinfo | grep MHz
用下面的指令驗證,CPU3: (595323851 - 591803134) / 10 = 352,071,接近352K就可以了。
代碼:
[root@ArchQ root]# cat /proc/interrupts | grep tick ; sleep 10 ; cat /proc/interrupts | grep tick
25: 571281250 588429691 591803134 588478334 SIRQC 25 proxy tick
25: 574760863 591953129 595323851 592003185 SIRQC 25 proxy tick