如题!
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可以通过这个命令来读取:
cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
参考:http://processors.wiki.ti.com/index.php/AM335x_Linux_Power_Management_User_Guide
CPU的频率不是无级变速,只能在几个频点上运行。
但是您可以查看cpu的占用率,了解当前负载的情况,命令是top