Conferences and supporting programme
Understanding SoC Power Management and Performance Determinism
High-performance embedded systems desperately crave the processing power of modern SoCs & CPUs, but current hardware architectures consistently prioritize peak performance over deterministic behavior. Advanced power management methods exploit inherent part-to-part variations in active and leakage power, boosting core frequencies in unpredictable ways. Adding to this, PC architectures tend to target specific CPU power constraints that can artificially clamp operating frequencies in order to maintain thermal and electrical specs. This creates scenarios where the power-density of the workload defines the effective operating frequency of the CPU & GPU cores, further reducing predictability. Real-time operating systems are there to help address determinism in the software domain but they cannot address it at the hardware level. Once these hardware implications are understood, designers will know what to look for when choosing CPUs for embedded systems where performance determinism is an important factor. Discover methods to disable features of modern processors that reduce hardware determinism.
--- Date: 28.02.2018 Time: 4:30 PM - 5:00 PM Location: Conference Counter NCC Ost