Real-time Operating Systems (RTOSs) are mainly implemented in software and sequentially executed on processors. The periodic call of the task scheduling service introduces additional overhead in software and eventually leads to jitter. However, the occurring overhead can be shortened or eliminated by using reconfigurable systems. Besides, dynamically adjusting power dissipation of reconfigurable systems leads to a change in the execution time of applications, so deadlines may not be met. Therefore, careful study of the impact of such optimizations on real-time capabilities is needed. The presented PhD project deals with offloading of RTOS components considering power dissipation on reconfigurable platforms. For this purpose, the task scheduling of FreeRTOS has already been offloaded to a co-processor while scaling voltage and frequency on XC7Z020. This reduced the execution time of the task scheduling by 38.9%.