Is it safe to disable Frequency Scaling and CPU idle Power Management support for Real Time purposes?

I'm using a Raspberry Pi board and I would like to build a real time system. During the kernel configuration, I found the **CONFIG_CPU_FREQ** option, which (from the help section) > allows you to change the clock speed of the CPU on the fly. This is a > nice method to save power, because the lower the CPU clock speed, the > less power the CPU consumes. That's a nice approach to consume less power but in real time applications this could lead to unpredictable behavior and high latencies. Xenomai developers suggest to disable **CONFIG_CPU_IDLE** because (from here ) > it allows the CPU to enter deep sleep states, increasing the time it > takes to get out of these sleep states, hence the latency of an idle > system. Also, on some CPU, entering these deep sleep states causes the > timers used by Xenomai to stop functioning I was wondering if disabling these two options could damage the cpu since the board does not come with a heat dissipation system? I imagine that, without these options, the cpu will be more reactive but it sounds like a CPU-Seppuku to me.