Updated: I check the frequency of the CPU by `cat /proc/cpuinfo`. On Wed, Jan 19, 2022 at 9:23 AM 孙世龙 sunshilong <[email protected]> wrote:
> Hi, list > I am using Linux 5.4.78 with PREEMPT_RT patch. > Hardware name: UNO-2372G-J021AE. > > It's strange that the frequency of the CPU is not constant(i.e. > not fixed at a specific frequency) if I both disable CONFIG_CPU_FREQ > and CONFIG_CPU_IDLE > whereas > the frequency of the CPU is constant if I only disable CONFIG_CPU_FREQ > (leave CONFIG_CPU_IDLE enabled). > > Could somebody please shed some light on this matter? >
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